From 85731a01bacce6db66426a61efcf5ebf585fc563 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 14 Aug 2024 00:26:34 +0000 Subject: [PATCH 001/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d200edb..fa25e08 100644 --- a/README.md +++ b/README.md @@ -53,6 +53,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 11, 2024 | [1568](https://leetcode.com/problems/minimum-number-of-days-to-disconnect-island/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1568) | 🔴 Hard | | August 12, 2024 | [703](https://leetcode.com/problems/kth-largest-element-in-a-stream/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/703) | 🟢 Easy | | August 13, 2024 | [40](https://leetcode.com/problems/combination-sum-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/40) | 🟡 Medium | +| August 14, 2024 | [719](https://leetcode.com/problems/find-k-th-smallest-pair-distance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/719) | 🔴 Hard | # Join our discussion! From 1f343794be8c41f99582763d1e23601a423396d8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 14 Aug 2024 03:16:42 +0000 Subject: [PATCH 002/573] Creating a template for jeremymanning's solution to problem 719 --- problems/719/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/719/jeremymanning.md diff --git a/problems/719/jeremymanning.md b/problems/719/jeremymanning.md new file mode 100644 index 0000000..e3a34ae --- /dev/null +++ b/problems/719/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 719: Find K-th Smallest Pair Distance](https://leetcode.com/problems/find-k-th-smallest-pair-distance/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 02ca446ceb8e141e985c7c68a666d6ce7e23d949 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Wed, 14 Aug 2024 00:57:04 -0400 Subject: [PATCH 003/573] Working on 719 (currently broken) --- problems/719/jeremymanning.md | 162 +++++++++++++++++++++++++++++++++- 1 file changed, 160 insertions(+), 2 deletions(-) diff --git a/problems/719/jeremymanning.md b/problems/719/jeremymanning.md index e3a34ae..48805b5 100644 --- a/problems/719/jeremymanning.md +++ b/problems/719/jeremymanning.md @@ -1,11 +1,169 @@ # [Problem 719: Find K-th Smallest Pair Distance](https://leetcode.com/problems/find-k-th-smallest-pair-distance/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- Computing the distances between every pair of numbers will take a while-- but it might be necessary +- A potentially faster way (if there are repeated values) would be: + - Use a `Counter` object to count up the numbers of unique values in `nums` + - Compute the pairwise distances between those unique values + - Sort the distances in ascending order + - To find the "corrected" `k`th distance, we also need to count how many times each distance appears in the pairwise comparisons ## Refining the problem, round 2 thoughts +- We'll need to keep track of the pairwise distances, and the number of times each distance appears +- If any number is repeated, we need to take that into account too (special case) +- I think this is actually pretty straightforward; let's code it! ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +from collections import Counter + +class Solution: + def smallestDistancePair(self, nums: List[int], k: int) -> int: + counts = dict(Counter(nums)) + dists = {} + for i, x in enumerate(counts.items()): + n, n_count = x + for m, m_count in list(counts.items())[i + 1:]: + d = abs(n - m) + if d in dists: + dists[d] += n_count * m_count + else: + dists[d] = n_count * m_count + + for n, n_count in counts.items(): + if n_count > 1: + if 0 in dists: + dists[0] += int(n_count * (n_count - 1) / 2) + else: + dists[0] = int(n_count * (n_count - 1) / 2) + + dists = sorted(list(dists.items()), key=lambda x: x[0]) + + i = 0 + for d, d_count in dists: + i += d_count + if i >= k: + return d +``` +- Test cases pass +- New examples: + - `nums = [657143, 97653, 286458, 471215, 575392, 81023, 953683, 501360, 228198, 918128, 868386, 915972, 28269, 607902, 626554, 158921, 829678, 81276, 180538, 639126, 17544, 596036, 648353, 327103, 383269, 678651, 676181, 733640, 462420, 600130, 752114, 973443, 968627, 171604, 949626, 298571, 610068, 712778, 785658, 623241, 844736, 650580, 515935, 626023, 344609, 700895, 209498, 468995, 937109, 183037, 564628, 761488, 486964, 848196, 976862, 611419, 408449, 597391, 725523, 362187, 54256, 266184, 534224, 879430, 40611, 858042, 609830, 923030, 912555, 218615, 848430, 507520, 871168, 322615, 958625, 179322, 995828, 809514, 191088, 987681, 640042, 541790, 284051, 33036, 236270, 974007, 866876, 731273, 233467, 92548, 93047, 275055, 904595, 533754, 565324, 253260, 217678, 174791, 303045, 980994, 380246, 909915, 607581, 605913, 604769, 408705, 877829, 949416, 348799, 800698, 272181, 762362, 354952, 870911, 175742, 45108, 59732, 345176, 465702, 230192, 141173, 984993, 766458, 864281, 612165, 231270, 587500, 577826, 924917, 134513, 726961, 847386, 57814, 506702, 761008, 393090, 942780, 365972, 798844, 109067, 705179, 634228, 240665, 364542, 33104, 99290, 762001, 979113, 280357, 492507, 748706, 103888, 17324, 966126, 179559, 94300, 77253, 364012, 586090, 575085, 414088, 305650, 996638, 610540, 465189, 212614, 328861, 970069, 657685, 996733, 205524, 97860, 857650, 407661, 954707, 358084, 998549, 517113, 895983, 433628, 475614, 645558, 658866, 121677, 450733, 294410, 576428, 270050, 344005, 519452, 717970, 822379, 411503, 30845, 900836, 962455, 250584, 168128, 692883, 998071, 130891, 585885, 792505, 348426, 952269, 914185, 405294, 918590, 517927, 147169, 794134, 266576, 704213, 883070, 978000, 670310, 394571, 740746, 504569, 606930, 921858, 489178, 781846, 874690, 854196, 552474, 381144, 983482, 503198, 49754, 825663, 900232, 452833, 960197, 419612, 215626, 862338, 766292, 721719, 940926, 987344, 633738, 604721, 636095, 195168, 835476, 926606, 321481, 846865, 964622, 622765, 131874, 397861, 53906, 606073, 622300, 688546, 665835, 720738, 409304, 193537, 221311, 733317, 533244, 748348, 609272, 995153, 347302, 847847, 336849, 283707, 931841, 706458, 154539, 41026, 388208, 930937, 310143, 348837, 428955, 961364, 69839, 479224, 333559, 56936, 801495, 940261, 911394, 395178, 734454, 652221, 672512, 582227, 885891, 46881, 23594, 848005, 448039, 879555, 726640, 139345, 935710, 201579, 10162, 61656, 478645, 608774, 834449, 638298, 212265, 624204, 201531, 628981, 373208, 782223, 974012, 117246, 799974, 718464, 893370, 252627, 862489, 637391, 949822, 674031, 385613, 974365, 388555, 643771, 927107, 195354, 69193, 866245, 95857, 700185, 114809, 112762, 563310, 243712, 494471, 118597, 447173, 480896, 7331, 405252, 454024, 917747, 127498, 259722, 308873, 552537, 533812, 508666, 726966, 646663, 4376, 511117, 714416, 298811, 201551, 252946, 776264, 491485, 414011, 472527, 652471, 785044, 968583, 732368, 472363, 181318, 29342, 80731, 851419, 124740, 995303, 442043, 871063, 199369, 406931, 219307, 198413, 47272, 755184, 512648, 695493, 380185, 935315, 620457, 931018, 971995, 360906, 872099, 272021, 923394, 926640, 568111, 895205, 993184, 506110, 632967, 377321, 410701, 568155, 531637, 582339, 860396, 270579, 30277, 598009, 33950, 220601, 874441, 528786, 914358, 265895, 533767, 719815, 926714, 482702, 166018, 451695, 467329, 897901, 99856, 500898, 438585, 558083, 918580, 471227, 249880, 527194, 130843, 501971, 932334, 426662, 662544, 858342, 557815, 113628, 759457, 307284, 90518, 337332, 755640, 218315, 495312, 388662, 834450, 928242, 155299, 476154, 609512, 35142, 382790, 809748, 316928, 849813, 761794, 436554, 755060, 420829, 778130, 735665, 942613, 474192, 959534, 829648, 872225, 156228, 716755, 984729, 876125, 717434, 384074, 741641, 457503, 687320, 787116, 830149, 95023, 507263, 142236, 729160, 511339, 261532, 985693, 82482, 347324, 265317, 749426, 772125, 43758, 741861, 816594, 52618, 630987, 896030, 566125, 992329, 776924, 984842, 980981, 246728, 904221, 669308, 404215, 441713, 367425, 526332, 543353, 170372, 233610, 683039, 215955, 517353, 349128, 154680, 358227, 947530, 878417, 135434, 125675, 803057, 162435, 356501, 72999, 257387, 53168, 485490, 425284, 778963, 507082, 944224, 244677, 197456, 685582, 96906, 16323, 730421, 667378, 588059, 208426, 44130, 266122, 728803, 631604, 533350, 248467, 897552, 445851, 737841, 483072, 409469, 499988, 912150, 597444, 124488, 993117, 540487, 641101, 502813, 255669, 621833, 57260, 723461, 630507, 362090, 169483, 673600, 144094, 182317, 89632, 404456, 129641, 12614, 188433, 839707, 329272, 739402, 395258, 11821, 428713, 993070, 694433, 934160, 628225, 704902, 6008, 249404, 652108, 465797, 978037, 374560, 764635, 374215, 401943, 260452, 410865, 54215, 610597, 178640, 431271, 53355, 434101, 538288, 222563, 153565, 654859, 964653, 408689, 296274, 296769, 297329, 203380, 893094, 361425, 159299, 347535, 399749, 226014, 516643, 752050, 253746, 103309, 924099, 800899, 465143, 341017, 778311, 511777, 162308, 626262, 504191, 359411, 449936, 612424, 652042, 164108, 298142, 67899, 944908, 807063, 348800, 351908, 351283, 636751, 896402, 784319, 479352, 246408, 904837, 198026, 883493, 226065, 194043, 146815, 991393, 61661, 188079, 247413, 894293, 720995, 423119, 342651, 267451, 658967, 779881, 318713, 318305, 603533, 657364, 138142, 931477, 626745, 873156, 485595, 350563, 946582, 386682, 748113, 177244, 953351, 818315, 595507, 585635, 164517, 321122, 569470, 487024, 278212, 848826, 791859, 618142, 270433, 57399, 550033, 32216, 761773, 219517, 63890, 410173, 24249, 961863, 438319, 792698, 110839, 480556, 990374, 874600, 853106, 651367, 129823, 68409, 679071, 444864, 391508, 983505, 52729, 917468, 410884, 797827, 373510, 960769, 83474, 192643, 841529, 999431, 743514, 859191, 3367, 95859, 886657, 970594, 996874, 915946, 629885, 662401, 105040, 632558, 757775, 692451, 592005, 744196, 821121, 549035, 696641, 719998, 184441, 332768, 900040, 816453, 167605, 105236, 309056, 212197, 161539, 315349, 875193, 562446, 909101, 8748, 168513, 863958, 520111, 857507, 581585, 951566, 289032, 744455, 933265, 639188, 143835, 442877, 897477, 612468, 837439, 989419, 266573, 730362, 854960, 590970, 536408, 137949, 652613, 373904, 900189, 526727, 113968, 864089, 530475, 274913, 129965, 291751, 230146, 931473, 448333, 921794, 292000, 378150, 673655, 158845, 195168, 758650, 888432, 196017, 471918, 707712, 845627, 57760, 601146, 476508, 2001, 607897, 525444, 335353, 118672, 905996, 308797, 475768, 664243, 359405, 16427, 250366, 787702, 354585, 917599, 469151, 588072, 444048, 334896, 189881, 118831, 99460, 307698, 575252, 179342, 896798, 495122, 880779, 416570, 381523, 475127, 685109, 850162, 706319, 370788, 301387, 238906, 548637, 592412, 712465, 271519, 753029, 458433, 561088, 288834, 339681, 905225, 866587, 192331, 742344, 935800, 398301, 314399, 911113, 495057, 385984, 608124, 409578, 385091, 304390, 992072, 899314, 428993, 192964, 580884, 480932, 139343, 212997, 255418, 931444, 196976, 516609, 973671, 460230, 631118, 74830, 252192, 706132, 768848, 331446, 38412, 575405, 829487, 103189, 547661, 332536, 908889, 837874, 196442, 825208, 848124, 839648, 629356, 800048, 929264, 319040, 568485, 67424, 507445, 346480, 422859, 174786, 42844, 344805, 526435], k = 184096`: pass + - `nums = [636173, 253928, 518881, 710926, 183965, 361633, 969232, 122883, 729524, 602528, 258953, 604260, 754500, 631395, 944282, 830388, 510677, 709082, 315850, 155754, 466807, 798330, 469139, 933744, 693578, 625433, 75345, 165017, 980320, 626767, 237803, 906767, 531418, 970949, 895656, 596081, 271331, 87206, 878711, 909130, 432769, 628413, 277836, 234703, 812885, 382494, 622531, 808688, 510954, 354028, 934978, 974404, 445428, 561067, 938325, 224857, 927977, 221467, 174898, 261149, 466159, 460085, 206818, 675602, 460251, 480836, 560375, 677192, 355742, 17533, 166221, 923712, 704896, 488328, 311881, 495794, 771482, 323286, 242051, 321939, 725659, 803822, 387866, 551734, 532884, 421881, 981081, 884958, 823468, 604540, 958636, 828411, 102904, 615699, 518949, 377700, 723139, 70242, 839806, 851688, 383235, 905679, 301912, 808207, 94323, 374060, 369079, 783041, 937501, 272372, 477074, 308248, 714727, 677543, 786224, 741803, 571108, 79187, 297903, 424015, 451162, 788971, 548320, 266386, 984971, 147297, 528783, 88219, 417283, 695506, 607329, 381014, 461689, 106387, 722773, 892072, 815497, 766878, 862797, 310253, 99215, 214347, 720092, 797463, 888674, 303650, 81640, 781981, 876557, 497495, 452076, 549473, 50185, 997392, 474127, 943201, 321252, 416749, 242042, 126659, 633350, 645380, 984011, 993728, 250018, 941724, 161240, 520939, 163791, 466123, 576703, 776585, 450041, 996432, 973504, 125344, 702016, 939163, 555021, 528392, 822222, 905333, 573112, 446410, 195082, 241583, 159887, 386659, 240222, 247606, 37149, 485239, 699461, 809813, 316824, 836754, 405387, 412810, 563368, 236196, 955038, 595860, 310632, 608749, 644901, 556041, 211783, 509595, 861024, 442883, 133651, 514793, 904898, 128186, 400610, 981083, 185580, 141179, 857455, 106341, 549656, 756991, 475883, 315639, 898999, 607861, 817984, 719483, 946261, 789692, 516502, 92647, 279040, 175968, 303534, 885830, 690273, 35191, 925992, 277302, 395368, 651737, 125507, 879554, 9564, 644662, 975155, 143026, 652644, 30011, 59802, 978083, 855886, 632554, 800567, 846138, 356188, 580969, 258198, 850475, 43332, 596977, 701446, 192035, 858737, 107732, 470721, 453008, 594855, 696291, 674242, 940856, 669134, 878216, 61417, 810201, 502510, 211715, 414473, 551294, 997451, 262229, 239576, 39338, 999702, 234792, 517350, 417405, 853027, 893087, 379388, 91420, 425005, 779264, 485069, 817355, 380199, 553545, 279243, 528784, 170659, 882281, 322991, 309319, 950751, 749975, 515935, 124816, 933197, 242423, 17166, 147613, 721169, 616878, 395628, 436217, 310153, 287628, 219012, 204534, 838735, 566296, 439456, 674995, 33722, 812891, 794278, 86995, 225479, 101344, 286612], k = 5135`: pass + - `nums = [0, 82, 68, 90, 10, 78, 13, 75, 54, 83, 56, 22, 42, 95, 77, 6, 62, 21, 41, 24, 40, 71, 94, 11, 41, 14, 14, 86, 27, 6, 60, 67, 56, 85, 55, 7, 22, 11, 54, 40, 70, 54, 41, 84, 25, 22, 69, 68, 68, 5, 12, 0, 57, 76, 67, 49, 11, 31, 26, 17, 82, 98, 50, 50, 59, 82, 5, 8, 18, 13, 7, 79, 6, 100, 100, 6, 74, 74, 71, 85, 7, 74, 71, 79, 38, 83, 19, 94, 42, 36, 58, 50, 82, 82, 0, 85, 82, 69, 0, 3, 7, 90, 92, 75, 94, 96, 73, 44, 86, 30, 48, 49, 75, 74, 92, 0, 31, 85, 71, 27, 30, 48, 44, 100, 35, 19, 84, 37, 17, 76, 74, 24, 76, 9, 85, 73, 96, 18, 73, 9, 61, 85, 69, 38, 73, 15, 26, 67, 26, 34, 2, 97, 39, 8, 67, 60, 29, 50, 95, 80, 9, 45, 68, 6, 34, 71, 28, 17, 66, 95, 62, 3, 43, 34, 2, 95, 17, 8, 92, 65, 31, 41, 2, 31, 21, 31, 22, 27, 100, 30, 5, 71, 63, 62, 67, 66, 74, 6, 2, 2, 36, 34, 89, 21, 33, 53, 79, 33, 32, 98, 59, 15, 49, 16, 39, 4, 99, 90, 3, 69, 70, 47, 12, 0, 68, 20, 61, 3, 74, 71, 15, 59, 67, 100, 27, 50, 97, 58, 77, 38, 67, 74, 52, 64, 62, 53, 31, 83, 71, 97, 31, 20, 17, 52, 61, 7, 96, 91, 13, 50, 92, 72, 84, 34, 21, 52, 57, 43, 46, 29, 45, 9, 34, 60, 97, 35, 14, 95, 67, 67, 39, 27, 27, 12, 14, 57, 12, 46, 36, 1, 56, 23, 20, 15, 52, 59, 7, 5, 39, 98, 100, 80, 15, 75, 41, 41, 77, 42, 47, 45, 7, 27, 96, 24, 67, 92, 24, 93, 54, 20, 32, 3, 79, 9, 90, 28, 85, 82, 66, 15, 76, 13, 28, 26, 78, 63, 10, 63, 45, 94, 87, 43, 55, 90, 72, 1, 82, 30, 61, 97, 19, 34, 65, 28, 94, 93, 4, 35, 75, 64, 45, 90, 56, 59, 61, 60, 42, 17, 62, 59, 81, 41, 54, 77, 45, 7, 67, 50, 19, 77, 7, 13, 86, 27, 69, 22, 79, 50, 1, 52, 66, 62, 63, 2, 90, 93, 23, 84, 16, 85, 8, 66, 99, 8, 42, 51, 93, 42, 66, 73, 27, 9, 21, 32, 73, 89, 53, 22, 43, 17, 75, 7, 27, 96, 73, 18, 64, 38, 26, 25, 0, 9, 8, 82, 99, 67, 97, 67, 42, 64, 88, 67, 34, 32, 95, 93, 21, 24, 22, 73, 24, 58, 90, 7, 42, 47, 97, 57, 95, 19, 68, 67, 80, 1, 51, 84, 100, 99, 97, 13, 37, 42, 78, 80, 12, 8, 91, 27, 76, 67, 92, 53, 71, 19, 1, 52, 74, 59, 38, 88, 66, 91, 65, 70, 0, 90, 31, 95, 48, 56, 90, 66, 59, 55, 55, 53, 91, 81, 62, 1, 66, 44, 78, 12, 55, 99, 14, 15, 51, 28, 25, 89, 6, 41, 60, 54, 3, 100, 31, 4, 51, 10, 95, 42, 65, 12, 98, 17, 30, 15, 61, 85, 63, 26, 73, 6, 20, 83, 41, 19, 29, 36, 40, 51, 38, 91, 89, 16, 36, 76, 97, 49, 83, 34, 50, 49, 98, 21, 15, 59, 54, 25, 48, 10, 17, 77, 45, 99, 38, 87, 10, 18, 54, 10, 84, 90, 42, 71, 36, 35, 36, 77, 76, 38, 70, 12, 27, 11, 48, 71, 52, 23, 30, 10, 76, 63, 40, 31, 6, 83, 0, 93, 21, 31, 80, 44, 55, 77, 55, 72, 65, 65, 54, 77, 48, 68, 43, 6, 85, 24, 11, 48, 51, 56, 11, 93, 54, 71, 16, 67, 90, 17, 44, 65, 97, 38, 27, 96, 88, 91, 95, 98, 65, 8, 61, 60, 42, 96, 45, 24, 53, 51, 91, 50, 100, 9, 95, 47, 86, 81, 45, 100, 76, 6, 39, 78, 90, 12, 2, 88, 84, 63, 1, 30, 61, 93, 83, 71, 15, 36, 94, 76, 85, 89, 90, 11, 3, 16, 19, 100, 57, 35, 68, 74, 85, 75, 54, 1, 43, 4, 99, 28, 26, 98, 41, 31, 14, 81, 55, 2, 10, 24, 81, 68, 34, 71, 1, 0, 95, 34, 74, 51, 52, 73, 47, 78, 16, 90, 4, 35, 76, 27, 7, 73, 89, 63, 81, 43, 55, 99, 63, 53, 50, 93, 88, 52, 94, 5, 41, 89, 16, 95, 16, 31, 8, 99, 14, 69, 46, 37, 45, 86, 56, 69, 92, 50, 4, 62, 7, 71, 83, 92, 87, 22, 72, 55, 59, 27, 44, 29, 30, 55, 80, 58, 100, 55, 69, 86, 73, 0, 78, 51, 2, 58, 66, 64, 45, 39, 51, 60, 45, 39, 55, 23, 46, 91, 15, 4, 62, 1, 10, 12, 55, 21, 39, 84, 37, 46, 59, 33, 30, 77, 82, 34, 46, 29, 53, 83, 97, 93, 7, 85, 34, 93, 38, 76, 48, 12, 89, 34, 79, 98, 17, 73, 24, 83, 37, 24, 89, 44, 36, 11, 74, 10, 12, 76, 45, 34, 22, 15, 80, 23, 27, 26, 88, 6, 37, 0, 8, 40, 48, 45, 78, 68, 37, 7, 26, 38, 40, 0, 81, 43, 47, 0, 39, 32, 82, 88, 41, 48, 1, 24, 87, 9, 22, 85, 80, 37, 66, 19, 41, 70, 71, 49, 38, 59, 71, 76, 75, 15, 77, 64, 54, 64, 6, 60, 53, 97, 4, 43, 11, 42, 4, 13, 60, 2, 22], k = 231040`: pass +- It's certainly possible I'm missing something, but I'm going to submit! + +![Screenshot 2024-08-13 at 11 59 34 PM](https://github.com/user-attachments/assets/667c61ab-2b28-4aed-9d2f-a01f80c7c3fd) + +- Ok...I was wondering if I'd run out of time. I think the most costly step is when I sort the distances-- if the distances are all unique, then that takes $O(n^2 \log n^2)$ time, which is...a lot. +- We could instead use a heap (using the `heapq` module): + - We'll push the distances and counts (of that distance). This will avoid the sorting step. + - Then at the end, we just have to pop from the heap until we get to the $k^\mathrm{th}$ value +```python +from collections import Counter +import heapq + +class Solution: + def smallestDistancePair(self, nums: List[int], k: int) -> int: + counts = dict(Counter(nums)) + dists = [] + for i, x in enumerate(counts.items()): + n, n_count = x + for m, m_count in list(counts.items())[i + 1:]: + d = abs(n - m) + heapq.heappush(dists, (d, n_count * m_count)) + + for n, n_count in counts.items(): + if n_count > 1: + heapq.heappush(dists, (0, int(n_count * (n_count - 1) / 2))) + + while k > 0: + d, d_count = heapq.heappop(dists) + k -= d_count + return d +``` +- Ok...the given test cases pass +- Submitting again... + +![Screenshot 2024-08-14 at 12 15 03 AM](https://github.com/user-attachments/assets/3c9aee46-2a1c-4f8c-b3f7-989585923dae) + +- Uh oh...we've saved time but now we're using too much memory! +- I also tried a very quick hack (deleting `nums` from memory once we no longer need it: +```python +from collections import Counter +import heapq + +class Solution: + def smallestDistancePair(self, nums: List[int], k: int) -> int: + counts = dict(Counter(nums)) + del nums + dists = [] + for i, x in enumerate(counts.items()): + n, n_count = x + for m, m_count in list(counts.items())[i + 1:]: + d = abs(n - m) + heapq.heappush(dists, (d, n_count * m_count)) + + for n, n_count in counts.items(): + if n_count > 1: + heapq.heappush(dists, (0, int(n_count * (n_count - 1) / 2))) + + while k > 0: + d, d_count = heapq.heappop(dists) + k -= d_count + return d ``` +- But that doesn't work either (same out of memory error): + +![Screenshot 2024-08-14 at 12 18 59 AM](https://github.com/user-attachments/assets/661aba12-1277-41fe-a53c-6ec8a63c2586) + +- My next idea is that we don't need to store the full heap in memory. E.g., if $k$ is smaller than the number of repetitions, we know that we should just return 0. The next smallest distances will be between numbers that are next to each other in sorted order (there are $n - 1$ of these). The next smallest distances will be between numbers that are 2 apart in the sorted order (there are $n - 2$ of these). And so on. +- We just need a way of computing the number of indices between the unique values. Then we can adjust $k$ accordingly (first subtracting out the number of repeated elements, then the number of distances between unique values that are 1 apart in the sorted list, then the number of distances between unique values that are 2 apart in the sorted list, etc., until we get to the appropriate lag). At that point we can start pushing values to the heap. (Then we can continue with the approach above.) +- This will be a little tricky, but let's see if we can get it to work... +```python +from collections import Counter +import heapq + +class Solution: + def smallestDistancePair(self, nums: List[int], k: int) -> int: + counts = Counter(nums) + del nums + + # Lag = 0 (repeated elements) + n_zeros = sum([int(c * (c - 1) / 2) for c in counts.values() if c > 1]) + if k <= n_zeros: + return 0 + + # Adjust k to account for the zero distances + k -= n_zeros + + # Compute distances iteratively (for increasing lags) + unique_nums = sorted(counts.keys()) + n = len(unique_nums) + dists = [] + + for lag in range(1, n): + n_pairs = 0 + for i in range(n - lag): + j = i + lag + n_pairs += counts[unique_nums[i]] * counts[unique_nums[j]] + + if k <= n_pairs: + for i in range(n - lag): + j = i + lag + d = abs(unique_nums[i] - unique_nums[j]) + heapq.heappush(dists, (d, counts[unique_nums[i]] * counts[unique_nums[j]])) + + while k > 0: + d, d_count = heapq.heappop(dists) + k -= d_count + return d + + k -= n_pairs +``` +- Ok...test cases are passing again; submitting... + +![Screenshot 2024-08-14 at 12 55 15 AM](https://github.com/user-attachments/assets/9c27fd82-7050-4b12-9908-7e21e74430d4) + +💩! + +Ugh. I'm going to need to come back to this 😞...too tired to think! From d1b6fea83c90ab5414d1c95f9680c630a51e7b6c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 15 Aug 2024 00:26:00 +0000 Subject: [PATCH 004/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index fa25e08..bd44d6c 100644 --- a/README.md +++ b/README.md @@ -54,6 +54,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 12, 2024 | [703](https://leetcode.com/problems/kth-largest-element-in-a-stream/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/703) | 🟢 Easy | | August 13, 2024 | [40](https://leetcode.com/problems/combination-sum-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/40) | 🟡 Medium | | August 14, 2024 | [719](https://leetcode.com/problems/find-k-th-smallest-pair-distance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/719) | 🔴 Hard | +| August 15, 2024 | [860](https://leetcode.com/problems/lemonade-change/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/860) | 🟢 Easy | # Join our discussion! From 34d9a45a695ec49e0ee1e0e8152806e40203a98d Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Wed, 14 Aug 2024 23:33:05 -0400 Subject: [PATCH 005/573] Solved 719! --- problems/719/jeremymanning.md | 47 +++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/problems/719/jeremymanning.md b/problems/719/jeremymanning.md index 48805b5..04b8335 100644 --- a/problems/719/jeremymanning.md +++ b/problems/719/jeremymanning.md @@ -167,3 +167,50 @@ class Solution: 💩! Ugh. I'm going to need to come back to this 😞...too tired to think! + +## The next day... +- I've now gone through this code many times. I think it's *very close* to being right, but I think that I'm missing one or more important edge cases. +- I think the heap-based approach may actually be over-complicating the problem. Instead, what if we think this through in a different way: + - Let's start by sorting `nums`. This is cheap ($O(n \log n)$, where $n$ is `len(nums)`) and will almost certainly make the problem easier. The *maximum* distance is now `nums[-1] - nums[0]`. The *minimum* distance (if we have any repeats) is 0. Note: we might need to actually *see* if we have any repeats. We'll come back to this. + - What if we do a sort of "binary search" approach? Something like: + - Set `left, right = 0, nums[-1] - nums[0]`. Note: again, I'm not sure if `left` is set correctly. Come back to this... + - Now find the midpoint. This is just `mid = (left + right) // 2`. + - Now we have to find the "rank" of `mid` in the distances. To do this: + - For each index `i` in `range(len(nums))`: + - Increment a second counter, `j`, until `nums[j] - nums[i]` grows larger than `mid`. + - Now we can increment a `count` (of the number of distances) by `j - i - 1` -- this tracks how many distances are less than or equal to `mid`. + - After looping through every number in the outer loop, if `count >= k`, then we know that `mid` is too high. So we can set the `right` bound to `mid`. Alternatively, if `count < k`, we know that `mid` is too *low*, so we can set the `left` bound to `mid + 1`. This halves our search space with each iteration of the outermost loop. + - Once `left >= right` we should break out of the outer loop and return `left`. This should be exactly equal to the `k`th smallest distance. +- Caveats: + - It's possible the "correction by 1" line (incrementing `count` by `j - i - 1`) is off, and we should instead increment `count` by `j - i`. Let's keep track of this as a possible explanation for why things fail. + - It's possible we should return `right` at the end instead of `left`. Again, let's track this as a possible fail point. We may need to walk through the full thing... +- Let's write this out and test it: + +```python +class Solution: + def smallestDistancePair(self, nums: List[int], k: int) -> int: + nums.sort() + left, right = 0, nums[-1] - nums[0] + + while left < right: + mid = (left + right) // 2 + count = 0 + j = 0 + for i in range(len(nums)): + while j < len(nums) and nums[j] - nums[i] <= mid: + j += 1 + count += j - i - 1 + + if count >= k: + right = mid + else: + left = mid + 1 + + return left +``` +- Ok, the test cases + prior "failed" cases are now passing 😳! +- Let's see if this works...submitting! + +![Screenshot 2024-08-14 at 11 30 46 PM](https://github.com/user-attachments/assets/0c978101-8180-4533-ad74-1d86c0784036) + +Finally!! 🥳! Actually, that approach was way simpler than the heap idea 🤦. From cdd54b27a55fedb14d7ce5cbcc2db1728ae40d63 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 15 Aug 2024 03:33:42 +0000 Subject: [PATCH 006/573] Creating a template for jeremymanning's solution to problem 860 --- problems/860/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/860/jeremymanning.md diff --git a/problems/860/jeremymanning.md b/problems/860/jeremymanning.md new file mode 100644 index 0000000..eae5418 --- /dev/null +++ b/problems/860/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 860: Lemonade Change](https://leetcode.com/problems/lemonade-change/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From b742684e47e31241434cbc95644c15ae9cbbf90c Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Wed, 14 Aug 2024 23:55:41 -0400 Subject: [PATCH 007/573] My solution to 860 --- problems/860/jeremymanning.md | 49 +++++++++++++++++++++++++++++++++-- 1 file changed, 47 insertions(+), 2 deletions(-) diff --git a/problems/860/jeremymanning.md b/problems/860/jeremymanning.md index eae5418..d9369c2 100644 --- a/problems/860/jeremymanning.md +++ b/problems/860/jeremymanning.md @@ -1,11 +1,56 @@ # [Problem 860: Lemonade Change](https://leetcode.com/problems/lemonade-change/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- What a breath of fresh air after yesterday's problem. +- This one seems very easy. We could either solve this by using a list to track all of the bills in our collection, or (more efficiently) we could use a hash table to track the numbers of each possible type of bill. There are only three, so we can initialize `register = {5: 0, 10: 0, 20: 0}`. +- Then we just step through one bill at a time, updating `register` as needed. The amount of change is just `bill[i] - 5`. +- There are just a few options for how much change might be needed: 0, 5, or 15: + - No change is needed if someone pays with a $5 bill. There's no need to check the register, but we update `register[5] += 1`. + - $5 in change is needed if someone pays with $10. Update `register[10] += 1` and decrement `register[5] -= 1` (or return false if that dips `register[5]` below 0. + - $15 in change is needed if someone pays with a $20. This requires one of the following: + - 1 $10 and 1 $5 bill if available + - 3 $5 bills otherwise + - We should always prefer giving change with larger bills, because this preserves our flexibility in later transactions ## Refining the problem, round 2 thoughts +- No edge cases I can think of...let's implement it! ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def lemonadeChange(self, bills: List[int]) -> bool: + cost = 5 + register = {5: 0, 10: 0, 20: 0} + + for payment in bills: + register[payment] += 1 + change = payment - cost + if change == 0: + continue + elif change == 5: + if register[5] <= 0: + return False + register[5] -= 1 + elif change == 15: + if register[10] > 0 and register[5] > 0: # try making change with $10 and $5 + register[10] -= 1 + register[5] -= 1 + elif register[5] >= 3: # try making change with 3 $5 bills + register[5] -= 3 + else: # correct change is not available + return False + + return True ``` +- Given test cases pass +- Let's make up some new test cases: + - `bills = [10, 5, 10, 5, 10, 20, 5, 5, 10, 5, 5, 5, 20, 20, 20, 10, 10, 10, 10, 5, 10, 10, 10, 10, 20, 5, 20, 10, 10, 10, 20, 10, 10, 5, 5, 20, 20, 5, 5, 10, 10, 5, 5, 5, 5, 10, 10, 20, 5, 5, 10, 20, 20, 5, 20, 5, 20, 10, 5, 20, 20, 5, 5, 5, 10, 5, 20, 10, 10, 10, 5, 10, 5, 5, 10, 20, 10, 10, 20, 10, 20, 20, 20, 10, 20, 5, 20, 5, 10, 10, 20, 5, 5, 20, 20, 5, 5, 10, 20, 20]`: pass + - `bills = [5, 10, 5, 10, 5, 10, 20, 5, 5, 10, 5, 5, 5, 20, 20, 20, 10, 10, 10, 10, 5, 10, 10, 10, 10, 20, 5, 20, 10, 10, 10, 20, 10, 10, 5, 5, 20, 20, 5, 5, 10, 10, 5, 5, 5, 5, 10, 10, 20, 5, 5, 10, 20, 20, 5, 20, 5, 20, 10, 5, 20, 20, 5, 5, 5, 10, 5, 20, 10, 10, 10, 5, 10, 5, 5, 10, 20, 10, 10, 20, 10, 20, 20, 20, 10, 20, 5, 20, 5, 10, 10, 20, 5, 5, 20, 20, 5, 5, 10, 20, 20]`: pass + - `bills = [5, 5, 10, 20, 20, 10, 10, 20, 20, 5, 5, 10, 20, 10, 20, 5, 10, 10, 20, 5]`: pass + - `bills = [5, 5, 5, 5, 10, 20, 5, 5, 5, 5, 10, 5, 10, 10, 10, 20, 5]`: pass +- Ok...seems like it's working; let's submit... + +![Screenshot 2024-08-14 at 11 55 03 PM](https://github.com/user-attachments/assets/1001e9e4-6917-4727-ab28-5523c342a859) + +Solved! + From 5ad1b5e1c72e63de26bab2bad17e930846aa4631 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 16 Aug 2024 00:26:28 +0000 Subject: [PATCH 008/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index bd44d6c..093b6c8 100644 --- a/README.md +++ b/README.md @@ -55,6 +55,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 13, 2024 | [40](https://leetcode.com/problems/combination-sum-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/40) | 🟡 Medium | | August 14, 2024 | [719](https://leetcode.com/problems/find-k-th-smallest-pair-distance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/719) | 🔴 Hard | | August 15, 2024 | [860](https://leetcode.com/problems/lemonade-change/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/860) | 🟢 Easy | +| August 16, 2024 | [624](https://leetcode.com/problems/maximum-distance-in-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/624) | 🟡 Medium | # Join our discussion! From 60dabe7a10ab6024d294c25ff35da66c7c6cdfb8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 16 Aug 2024 02:21:14 +0000 Subject: [PATCH 009/573] Creating a template for jeremymanning's solution to problem 624 --- problems/624/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/624/jeremymanning.md diff --git a/problems/624/jeremymanning.md b/problems/624/jeremymanning.md new file mode 100644 index 0000000..e08240b --- /dev/null +++ b/problems/624/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 624: Maximum Distance in Arrays](https://leetcode.com/problems/maximum-distance-in-arrays/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 2d1c214d0066e56ce8e5397d59f61003e1513d2b Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Thu, 15 Aug 2024 23:44:38 -0400 Subject: [PATCH 010/573] My solution to 624 --- problems/624/jeremymanning.md | 170 +++++++++++++++++++++++++++++++++- 1 file changed, 167 insertions(+), 3 deletions(-) diff --git a/problems/624/jeremymanning.md b/problems/624/jeremymanning.md index e08240b..e7a8ada 100644 --- a/problems/624/jeremymanning.md +++ b/problems/624/jeremymanning.md @@ -1,11 +1,175 @@ # [Problem 624: Maximum Distance in Arrays](https://leetcode.com/problems/maximum-distance-in-arrays/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- Since the arrays are sorted, we know that only the first and last elements in each array matter +- The brute force solution would be: + - Compute the minimums and maximums of each array: `bounds = [[a[0], a[-1]] for a in arrays]` + - For each minimum, compute the maximum (from the other arrays) that's farthest away + - This requires $O(m^2)$ time (for the $m$ arrays), which is likely intractable since $m$ could be as large as $10^5$. +- Another possibility would be to tackle this in a dynamic programming way. What if we keep track of the *two* largest and smallest values, along with the array indices they come from? + - The smallest minimum + the largest maximum from any other array. If a new minimum is found, we can now potentially update the largest maximum if it happened to be from the same array as the previous smallest minimum. + - The largest maximum + the smallest minimum from any other array. If a new maximum is found, we can now potentially update the smallest minimum if it happened to be from the same array as the previous largest maximum. ## Refining the problem, round 2 thoughts - +- Some things to work out: + - How do we track the *two* smallest minima or the two largest maxima? We could initialize them to the first two minima/maxima (from the first two arrays). Then if we find a smaller minimum or a larger maximum in a future array, we can either replace the second smallest/largest or add the new values to the front and remove the second smallest/largest. + - If the "next" array in the sequence has *both* a larger maximum *and* a smaller minimum, then we can only update *either* the maxima or the minima. We should choose whichever results in the larger absolute difference. + - This makes me realize that we probably only need to keep track of the *single* smallest minimum and the *single* largest maximum, since if we just consider each array in turn it's not possible for a previous max/min to have come from the new array we're considering. + - We just need to initialize the max and min using the first two arrays (based on what yields the largest absolute difference) + - Then for each successive array, `a`: + - If `a[0] < current_min and a[-1] > current_max`: + - If abs(a[0] - current_max) > abs(current_min - a[-1]): + - `current_min = a[0]` + - Else: + - `current_max = a[-1]` + - Else: + - If `a[0] < current_min`, `current_min = a[0]` + - If `a[-1] > current_max`, `current_max = a[-1]` + - Then we just return `abs(current_max - current_min)` +- One potential edge case: what if we're in that first condition (where the new array, `i`, has *both* the new minimum and maximum values). We only get to replace the current min *or* max. Suppose we replace the min, since that results in a larger difference. But later on in the sequence, for some further-along array `j`, suppose we find an even *smaller* minimum (i.e., `j[0] < i[0]`), but no array after `i` has a larger value than `i[-1]`. Now we've missed out on a larger absolute difference, since we chose the wrong replacement of the `current_min` and `current_max` when we got to array `i`. So actually, we probably *do* need to keep track of those sorts of discarded options: + - We could initialize `discarded_min = float('inf')` and `discarded_max = float('-inf')`. Then we could update the logic of the first case above as follows: + - for each successive array, `a`: + - If `a[0] < current_min and a[-1] > current_max`: + - If abs(a[0] - current_max) > abs(current_min - a[-1]): + - `current_min = a[0]` + - `discarded_max = a[-1]` + - Else: + - `current_max = a[-1]` + - `discarded_min = a[0]` + - Else: + - If `a[0] <= current_min`: + - `current_min = a[0]` + - If `discarded_max > current_max`: + - `current_max = discarded_max` + - If `a[-1] >= current_max`: + - `current_max = a[-1]` + - If `discarded_min < current_min`: + - `current_min = discarded_min` + - Now return `abs(current_max - current_min)` +- Ok...I'm not 100% confident in this approach, but let's try it... + ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def maxDistance(self, arrays: List[List[int]]) -> int: + discarded_min, discarded_max = float('inf'), float('-inf') + if abs(arrays[0][0] - arrays[1][-1]) > abs(arrays[0][-1] - arrays[1][0]): + current_min, current_max = arrays[0][0], arrays[1][-1] + else: + current_min, current_max = arrays[1][0], arrays[0][-1] + if abs(arrays[0][0] - arrays[1][-1]) == abs(arrays[0][-1] - arrays[1][0]): + discarded_min, discarded_max = arrays[0][0], arrays[1][-1] + + for a in arrays[2:]: + if a[0] < current_min and a[-1] > current_max: + if abs(a[0] - current_max) > abs(current_min - a[-1]): + current_min = a[0] + discarded_max = a[-1] + else: + current_max = a[-1] + discarded_min = a[0] + else: + if a[0] <= current_min: + current_min = a[0] + if discarded_max > current_max: + current_max = discarded_max + if a[-1] >= current_max: + current_max = a[-1] + if discarded_min < current_min: + current_min = discarded_min + + return abs(current_max - current_min) +``` +- Given test cases pass +- Let's generate some random new arrays: + - `arrays = [[-88, -37, -32, -24, -5], [-59, 49, 53], [-31, 18, 34, 52, 59], [-7, 74], [-92, 4], [-31, 23], [-86, -12, 63, 67], [-66, -48, -12, 89], [-57, -16, -10, -5], [-91, -60, 65, 77, 85], [-61, -18, 53], [-50, -22], [-41, -32, 28, 47, 90], [-34, -11, 1, 35, 47], [-3, 11, 93, 95], [-19], [-63, -32, 7], [56]]`: pass + - `arrays = [[-57, -27], [-92], [-86, 66], [-50, -21, -4, 23], [-96, 55, 63, 88], [-66, 81], [-94, -79, 4, 35], [91, 96], [-30, -3, 14, 55, 66], [56], [-5], [-95, -61, 50, 63], [-23, 29, 35], [-55, 87], [-99, -48, 34, 71, 97], [-97, -49, 52, 53], [-84, -41, 19, 28], [-78]]`: pass + - `arrays = [[-51, -5, 16, 72, 89], [-94, -68, 13], [-100, -73], [-80, -48, -17, -7, 47], [-17, 51], [-88, -6]]`: pass +- Ok...let's submit! + +![Screenshot 2024-08-15 at 11 18 37 PM](https://github.com/user-attachments/assets/f76a11c8-7a27-4846-9030-5fdac59b0cbb) + +Bummer...it fails for `arrays = [[1,3],[-10,-9,2,2,3,4],[-8,-5,2],[-10,-6,-5,-5,0,3],[-8,-6,-2,0,2,3,3],[-10,-10,-5,0]]`. I can see that for this one there are three arrays where the minimum is -10. The max across all arrays is 4, but that includes one of those -10 arrays. What I was hoping would happen is: + - Given the first two arrays, intialize: `current_min, current_max, discarded_min, discarded_max = -10, 3, float(`-inf`), 4` + - But I'm seeing that this actually isn't what the start of my code does...let's see if we can patch it up a bit. +```python +class Solution: + def maxDistance(self, arrays: List[List[int]]) -> int: + discarded_min, discarded_max = float('inf'), float('-inf') + if abs(arrays[0][0] - arrays[1][-1]) > abs(arrays[0][-1] - arrays[1][0]): + current_min, current_max = arrays[0][0], arrays[1][-1] + if arrays[1][0] < current_min: + dicarded_min = arrays[1][0] + if arrays[0][-1] > current_max: + discarded_max = arrays[0][-1] + else: + current_min, current_max = arrays[1][0], arrays[0][-1] + if arrays[0][0] < current_min: + dicarded_min = arrays[0][0] + if arrays[1][-1] > current_max: + discarded_max = arrays[1][-1] + + for a in arrays[2:]: + if a[0] < current_min and a[-1] > current_max: + if abs(a[0] - current_max) > abs(current_min - a[-1]): + current_min = a[0] + discarded_max = a[-1] + else: + current_max = a[-1] + discarded_min = a[0] + else: + if a[0] <= current_min: + current_min = a[0] + if discarded_max > current_max: + current_max = discarded_max + if a[-1] >= current_max: + current_max = a[-1] + if discarded_min < current_min: + current_min = discarded_min + + return abs(current_max - current_min) ``` +- Ok, that fixes that test case +- But...now a new case is failing (`arrays = [[-10,-9,-9,-3,-1,-1,0],[-5],[4],[-8],[-9,-6,-5,-4,-2,2,3],[-3,-3,-2,-1,0]]`): + +![Screenshot 2024-08-15 at 11 27 01 PM](https://github.com/user-attachments/assets/af2ff6e8-e5ea-4608-bbc0-a947ada9db0b) + + +- I can see a few things: + - There are a bunch of single-element arrays, so that might be messing with the logic I've used: + - Do I ever need to ensure that the same single element isn't used as *both* the min and max? I don't think so, since we're only selecting at most one element from a given array anyway. + - But maybe the initial logic where I set `discarded_min` and `discarded_max` is still faulty? I think this may be a problem-- I forgot to account for the case where `abs(arrays[0][0] - arrays[1][-1]) == abs(arrays[0][-1] - arrays[1][0])`. If so, then...what do we do? +- Actually maybe there's an even simpler solution: + - initialize `current_min, current_max, max_dist = arrays[0][0], arrays[0][-1], 0` + - Now loop through the remaining arrays: + - Replace `max_dist` with `max(max_dist, abs(a[-1] - current_min), abs(a[0] - current_max))` + - Replace `current_min` with `min(current_min, a[0])` + - Replace `current_max` with `max(current_max, a[-1])` + - Then just return `max_dist` + - Now we don't need to deal with these edge cases. +- Let's try it... + +```python +class Solution: + def maxDistance(self, arrays: List[List[int]]) -> int: + current_min, current_max, max_dist = arrays[0][0], arrays[0][-1], 0 + for a in arrays[1:]: + max_dist = max(max_dist, abs(a[-1] - current_min), abs(a[0] - current_max)) + current_min = min(current_min, a[0]) + current_max = max(current_max, a[-1]) + return max_dist +``` +- Now the previously failing test cases pass +- Let's try a few more: + - `arrays = [[79], [-59, 35], [-58, 81], [-100, -73, 17, 58], [-66, -31, -9, -2], [20, 37, 39], [-93, -43, -6, 27, 53], [-30], [-59, -18, 8, 59], [-68, -67, -31, -13, 66], [-65, -50, 99], [-70, -56, 41, 70], [-96, -90, 56], [-79, 23, 39, 78], [-77, -52, 45]]`: pass + - `arrays = [[-20, 1, 25, 88, 94], [-53, -47, 88], [-84, -30, -19, 16, 95], [-27, 4, 46, 79], [-87, -79, -47, -23, 43], [-66, -51, 31, 85], [-20], [-54, 29], [-100, 1, 51, 98], [-89, -84, 15], [49], [-95, 18], [-83, -80, -25, 83, 91], [-25, 52], [-30], [-71, -8, 81, 92, 100]]`: pass +- Ok...let's submit again... + +![Screenshot 2024-08-15 at 11 40 57 PM](https://github.com/user-attachments/assets/cffeb74d-cbc0-44a2-be05-504570150a5c) + +Solved! + +Some post-mortem reflections on this one: +- I was a bit too eager to finish this quickly, which resulted in submitting too early before I had fully thought through the logic or potential edge cases. Ironically this resulted in the full thing taking *longer* than I think it could have otherwise. +- I sort of used the given test cases to "debug," but this seems akin to "overfitting" (maybe not *quite* cheating outright, but feels close!) +- It turns out this was a pretty simply problem after I took a step back and stopped over-thinking it. Good to keep in mind for the future! From e624dfd9986f48d3c1968a14d98d41b6d5b1c707 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 17 Aug 2024 00:25:40 +0000 Subject: [PATCH 011/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 093b6c8..be512b3 100644 --- a/README.md +++ b/README.md @@ -56,6 +56,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 14, 2024 | [719](https://leetcode.com/problems/find-k-th-smallest-pair-distance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/719) | 🔴 Hard | | August 15, 2024 | [860](https://leetcode.com/problems/lemonade-change/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/860) | 🟢 Easy | | August 16, 2024 | [624](https://leetcode.com/problems/maximum-distance-in-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/624) | 🟡 Medium | +| August 17, 2024 | [1937](https://leetcode.com/problems/maximum-number-of-points-with-cost/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1937) | 🟡 Medium | # Join our discussion! From 9a6f0842e412d72291ecd6ce7508e44500c5a60e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 17 Aug 2024 01:32:34 +0000 Subject: [PATCH 012/573] Creating a template for jeremymanning's solution to problem 1937 --- problems/1937/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/1937/jeremymanning.md diff --git a/problems/1937/jeremymanning.md b/problems/1937/jeremymanning.md new file mode 100644 index 0000000..ca1cbca --- /dev/null +++ b/problems/1937/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 1937: Maximum Number of Points with Cost](https://leetcode.com/problems/maximum-number-of-points-with-cost/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 10e72f826f93c12d11713a3c3125e8b0750e3c03 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Fri, 16 Aug 2024 22:11:25 -0400 Subject: [PATCH 013/573] partial solution to 1937 [WIP] --- problems/1937/jeremymanning.md | 53 ++++++++++++++++++++++++++++++++-- 1 file changed, 51 insertions(+), 2 deletions(-) diff --git a/problems/1937/jeremymanning.md b/problems/1937/jeremymanning.md index ca1cbca..14990a7 100644 --- a/problems/1937/jeremymanning.md +++ b/problems/1937/jeremymanning.md @@ -1,11 +1,60 @@ # [Problem 1937: Maximum Number of Points with Cost](https://leetcode.com/problems/maximum-number-of-points-with-cost/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- One observation is that we're definitely going to need to visit every number at least once, so we're looking at an $O(mn)$ algorithm, at minimum. So any steps that are $O(mn)$ or faster are "free." (Here $m$ is the number of columns and $n$ is the number of rows in the matrix.) +- I wonder if we could do something like: + - In an intial pass through (or maybe this can be done in a first pass...) start by selecting the cell with the maximum point value (ignoring the previous vs. next selections). + - Then ask: if we shift each value...or...actually, here's a better idea +- What if we do this: + - If `len(points) == 1` then just return `max(points[0])` + - Initialize `score = 0` + - For each row, `i in range(1, len(points))`: + - Figure out which pick of the *current* row would maximize the score up to and including the *previous* row: + ```python + prev_best = -1 + max_score = -1 + for i, a in enumerate(points[i - 1]): + for j, b in enumerate(points[i]): + if a + b - abs(i - j) > max_score: + max_score = a + b - abs(i - j) + prev_best = i + ``` + - Then if `i < len(points) - 1`, increment the total score by `points[i - 1][prev_best]`. Otherwise increment the total score by `max_score`. + - Side note: I can't re-use `i` as an index-- so for those inner loops we should instead use `j` and `k`, respectively. + - Now just return `score` ## Refining the problem, round 2 thoughts +- This seems straightforward to implement. I'm not 100% sure it's *correct* though. +- Walking through this one is going to be annoying, and I'm feeling tired, so as a poor substitute I'm going to intentionally not learn from my previous mistakes and just "test" this by making up a bunch of test problems using random `points` matrices. ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def maxPoints(self, points: List[List[int]]) -> int: + if len(points) == 1: + return max(points[0]) + score = 0 + for i in range(1, len(points)): + prev_best = -1 + max_score = -1 + for j, a in enumerate(points[i - 1]): + for k, b in enumerate(points[i]): + next_score = a + b - abs(j - k) + if next_score > max_score: + max_score = next_score + prev_best = j + if i < len(points) - 1: + score += points[i - 1][prev_best] + else: + score += max_score + return score ``` +- Given test cases pass, which is promising... +- `points = [[91, 0, 35, 50, 71], [77, 35, 95, 3, 2], [67, 61, 81, 76, 42], [19, 89, 29, 80, 68], [88, 74, 62, 99, 6]]`: fail...hmmm +- What about: `points = [[56, 19, 26, 75], [83, 31, 47, 100], [69, 100, 3, 4], [12, 100, 43, 12]]`: ok, also wrong... but this is a little smaller, so easier to debug? +- I think the problem is actually a bit trickier than I am accounting for here: + - There could be several picks with the same score + - Choosing one vs. the other may be the same for *this* row (`i - 1`), but that decision could affect *previous* rows' scores. + - So actually, I need to somehow track all decisions for each new row that would have maximized the score up to that point. Then somehow I'll need to go back through and figure out which specific pics to make. +- I think I'm too tired to think through this fully, so I'm going to take a break here and revisit tomorrow! + From 34d20e619d98fd781742c861398f294ad3817745 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 18 Aug 2024 00:29:14 +0000 Subject: [PATCH 014/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index be512b3..734ce1b 100644 --- a/README.md +++ b/README.md @@ -57,6 +57,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 15, 2024 | [860](https://leetcode.com/problems/lemonade-change/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/860) | 🟢 Easy | | August 16, 2024 | [624](https://leetcode.com/problems/maximum-distance-in-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/624) | 🟡 Medium | | August 17, 2024 | [1937](https://leetcode.com/problems/maximum-number-of-points-with-cost/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1937) | 🟡 Medium | +| August 18, 2024 | [264](https://leetcode.com/problems/ugly-number-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/264) | 🟡 Medium | # Join our discussion! From 0d0916b5239fbafcd7bd5f4a90803cc1db9d979f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 18 Aug 2024 03:22:33 +0000 Subject: [PATCH 015/573] Creating a template for jeremymanning's solution to problem 264 --- problems/264/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/264/jeremymanning.md diff --git a/problems/264/jeremymanning.md b/problems/264/jeremymanning.md new file mode 100644 index 0000000..eafbc09 --- /dev/null +++ b/problems/264/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 264: Ugly Number II](https://leetcode.com/problems/ugly-number-ii/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 580e6c12f1dc2f8998b75594a6c2d3d52be93665 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Sat, 17 Aug 2024 23:40:58 -0400 Subject: [PATCH 016/573] My solution to 264 --- problems/264/jeremymanning.md | 48 +++++++++++++++++++++++++++++++++-- 1 file changed, 46 insertions(+), 2 deletions(-) diff --git a/problems/264/jeremymanning.md b/problems/264/jeremymanning.md index eafbc09..1696e6f 100644 --- a/problems/264/jeremymanning.md +++ b/problems/264/jeremymanning.md @@ -1,11 +1,55 @@ # [Problem 264: Ugly Number II](https://leetcode.com/problems/ugly-number-ii/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- One way to solve this would be: + - Start the sequence with 1 + - Each subsequent element is generated by multiplying a previous element by 2, 3, or 5 + - We could have 3 indices/pointers to keep track of the next thing to multiply by 2/3/5 (initially these should all point to the first element, which is 1). Let's call these `i2`, `i3`, and `i5`. + - Now we just: + - Take the current 2/3/5 pointers' numbers and multiply by 2/3/5 + - Take the minimum of the results (this occurs for pointer `i`). Note: it's possible that *multiple* pointers could match-- e.g., if `i2 == 3` and `i3 == 2` then both the `i2` and `i3` results will be 6. + - Add it to the list and increment the matching pointer(s) (by 1). + - Repeat until we've gotten `n` numbers in the sequence and then return the last number in the sequence ## Refining the problem, round 2 thoughts +- Let's see if this works... ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def nthUglyNumber(self, n: int) -> int: + ugly_numbers = [0] * n + ugly_numbers[0] = 1 + + i2, i3, i5 = 0, 0, 0 + next2, next3, next5 = 2, 3, 5 + + for i in range(1, n): + x = min(next2, next3, next5) + ugly_numbers[i] = x + + if x == next2: + i2 += 1 + next2 = ugly_numbers[i2] * 2 + + if x == next3: + i3 += 1 + next3 = ugly_numbers[i3] * 3 + + if x == next5: + i5 += 1 + next5 = ugly_numbers[i5] * 5 + + return ugly_numbers[n - 1] ``` +- Given text cases pass +- Let's try some others: + - `n = 1690`: pass + - `n = 250`: pass +- Ok, it's probably good; submitting... + +![Screenshot 2024-08-17 at 11 39 32 PM](https://github.com/user-attachments/assets/a221898c-7840-4834-a190-41047867352b) + +Woah, apparently this was the way to solve it! + + From f2e4d640db9b6e9ba7c34c7dee6097ba5bd980af Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 19 Aug 2024 00:27:33 +0000 Subject: [PATCH 017/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 734ce1b..f8e4f4c 100644 --- a/README.md +++ b/README.md @@ -58,6 +58,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 16, 2024 | [624](https://leetcode.com/problems/maximum-distance-in-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/624) | 🟡 Medium | | August 17, 2024 | [1937](https://leetcode.com/problems/maximum-number-of-points-with-cost/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1937) | 🟡 Medium | | August 18, 2024 | [264](https://leetcode.com/problems/ugly-number-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/264) | 🟡 Medium | +| August 19, 2024 | [650](https://leetcode.com/problems/2-keys-keyboard/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/650) | 🟡 Medium | # Join our discussion! From ef60e04d1cd05b160fc60253e10891855fad1fb7 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 19 Aug 2024 02:51:40 +0000 Subject: [PATCH 018/573] Creating a template for jeremymanning's solution to problem 650 --- problems/650/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/650/jeremymanning.md diff --git a/problems/650/jeremymanning.md b/problems/650/jeremymanning.md new file mode 100644 index 0000000..c6a30e8 --- /dev/null +++ b/problems/650/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 650: 2 Keys Keyboard](https://leetcode.com/problems/2-keys-keyboard/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From b53073037c66eb38f7849b2af2619438d662a6fc Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Sun, 18 Aug 2024 23:28:10 -0400 Subject: [PATCH 019/573] My solution to 650 --- problems/650/jeremymanning.md | 57 +++++++++++++++++++++++++++++++++-- 1 file changed, 55 insertions(+), 2 deletions(-) diff --git a/problems/650/jeremymanning.md b/problems/650/jeremymanning.md index c6a30e8..1c88db5 100644 --- a/problems/650/jeremymanning.md +++ b/problems/650/jeremymanning.md @@ -1,11 +1,64 @@ # [Problem 650: 2 Keys Keyboard](https://leetcode.com/problems/2-keys-keyboard/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- If `n` is a power of 2 (1, 2, 4, 8, etc.) then we can return `log2(n)` +- If `n` is a power of `x` then we can return `logx(n)` +- If `n` is *not* an integer power of anything, then we might just need to copy the first 'A' and then paste it `n` times...although...maybe there's a faster way? +- Maybe there's a dynamic programming solution: if `n` is divisible by some integer `x`, then: + - First get `x` As + - Then copy + - Then paste `n // x` times +- So maybe we can build up iteratively: + - If `n` is 1, then the number of steps is 0 + - If `n` is 2: copy + paste + - If `n` is 3: copy + paste + paste + - If `n` is 4: solve for 2 (2 steps), then copy + paste + - If `n` is 5: copy + paste + paste + paste + paste + - If `n` is 6: min(solve for 3 (3 steps), then copy + paste, solve for 2 (2 steps), then copy + paste + paste) + - And so on... +- If `n` is prime, we just need to copy and then paste `n - 1` times +- If `n` is divisible by some integer `x`, then (as listed above) we first compute the number of steps required to get `x` As, then copy, then paste `n // x` times + - We'll have to compute the minimum over all possible `x`s (i.e., factors of `n`) + - Suppose we're up to `i` As. Do we need to check all the way to `i`? I think we just need to check up to `sqrt(i)`-- e.g., if `i` is 12 then we can factorize `i` into (1, 12), (2, 6), or (3, 4). In general, if we can factorize `i` to the product of `x` and `y`, then either `x` or `y` must be less than or equal to `sqrt(i)`. (At most, `x == y == sqrt(i)`.) + - The number of steps needed to get `i` As (where `x` and `y` are factors) is `min(i, steps[x - 1] + (i // x), steps[y - 1] + (i // y))`. But then we need to potentially update this (to a new minimum) for any other factors that require fewer steps. ## Refining the problem, round 2 thoughts +- We just need to initialize an array to store the number of steps needed to get to each number of As, up to `n`. We can skip `n <= 1`, since we know that requires 0 steps. +- Then we just loop through `i in range(2, n + 1)` and: + - Set `steps[i - 1] = i` + - For `j in range(2, int(math.sqrt(i)) + 1)`: + - `if i % j == 0:` + - `steps[i - 2] = min(steps[i - 1], steps[j - 1] + (i // j), steps[i // j - 1] + j)` +- Then return `steps[n - 1]` +- Let's try this... ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +import math + +class Solution: + def minSteps(self, n: int) -> int: + if n <= 1: + return 0 + steps = [0] * n + + for i in range(2, n + 1): + steps[i - 1] = i + for j in range(2, int(math.sqrt(i)) + 1): + if i % j == 0: + steps[i - 1] = min(steps[i - 1], steps[j - 1] + (i // j), steps[i // j - 1] + j) + + return steps[n - 1] ``` +- Given test cases pass +- More tests: + - `n = 1000`: pass + - `n = 500`: pass + - `n = 64`: pass + - `n = 999`: pass +- Ok...seems good; submitting... + +![Screenshot 2024-08-18 at 11 26 10 PM](https://github.com/user-attachments/assets/10337fc3-59ad-4383-adaa-804b66b48f03) + +Solved! + From 051aee7562febb08c7555b17b169d9eecec3fb26 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Mon, 19 Aug 2024 16:54:55 -0400 Subject: [PATCH 020/573] More musings about 1937 [WIP] --- problems/1937/jeremymanning.md | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/problems/1937/jeremymanning.md b/problems/1937/jeremymanning.md index 14990a7..8a0e612 100644 --- a/problems/1937/jeremymanning.md +++ b/problems/1937/jeremymanning.md @@ -58,3 +58,24 @@ class Solution: - So actually, I need to somehow track all decisions for each new row that would have maximized the score up to that point. Then somehow I'll need to go back through and figure out which specific pics to make. - I think I'm too tired to think through this fully, so I'm going to take a break here and revisit tomorrow! +## Several days later... +- Given the problems I've done over the past few days, I'm guessing we're in a dynamic programming block. So let's see if there's a dynamic programming way of solving this... +- Suppose, given that we've gotten to row $i$, the best possible scores from selecting each column (in that row) are $\left[x_1, x_2, x_3, ..., x_n\right]$. + - For the first row, the "best scores" are just the values in that first row +- Now how do we optimize the scores for row $i + 1$? + - Suppose the next row has values $\left[y_1, y_2, y_3, ..., y_n\right]$ + - Suppose also that (when we get to row $i + 1$) we could pick *any* column from row $i$ (whatever would maximize our score) + - Let's see what the total number of points would be... + - By the time we get to row $i + 1$, suppose we've computed the maximum number of points we'd get if we chose each column in turn in row $i$. Let's say the point values are $\left[p_1, p_2, p_3, ..., p_n\right]$. + - In row $i + 1$, let's iterate across the columns, using the existing `best` values: + - We want to compute, for each possible column $j$, the updated score we'd get if we pick column $j$ in the current row ($i + 1$) + - Moving from left to right: + - If we stay on column 0, and our *previous* choice was also 0, then our score is `best[0] + points[i + 1][0]` + - If our previous choice was column $j$, then our new score is `best[0] + points[i + 1][0] - j` + - Let's build up how much we'd add to our score if we move from whatever the best choice in the previous row was to column $j$ in the current row + - `new_points = [0] * len(points[0])` + - `new_points[0] = best[0]`...ok, I need to come back to this again 😞...I'm out of time...but what I'm thinking (but not totally sure how to solve) is: + - We should track the points we'd get if we move from whatever the best column was in the previous row to each possible column in the current row + - I'm not sure if we need a forward/backward pass through `points`, or a left/right pass through each column, or both, or neither + - It seems like we should be able to say something like: if we've gotten to column `j`, considering each column up to `j`, let's compute our best possible score + - So I guess we should also track the reverse direction, if we've gotten to column `j`, considering each column *after* `j` in turn...and then we'll need to compute the max of both of those options. From 07389858782105fb93536aea7560dc5a5aee287f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 20 Aug 2024 00:26:28 +0000 Subject: [PATCH 021/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f8e4f4c..f9ded14 100644 --- a/README.md +++ b/README.md @@ -59,6 +59,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 17, 2024 | [1937](https://leetcode.com/problems/maximum-number-of-points-with-cost/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1937) | 🟡 Medium | | August 18, 2024 | [264](https://leetcode.com/problems/ugly-number-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/264) | 🟡 Medium | | August 19, 2024 | [650](https://leetcode.com/problems/2-keys-keyboard/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/650) | 🟡 Medium | +| August 20, 2024 | [1140](https://leetcode.com/problems/stone-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1140) | 🟡 Medium | # Join our discussion! From 870e176e4a2b79fd82cfb4c4a4287342b0851390 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 20 Aug 2024 02:12:02 +0000 Subject: [PATCH 022/573] Creating a template for jeremymanning's solution to problem 1140 --- problems/1140/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/1140/jeremymanning.md diff --git a/problems/1140/jeremymanning.md b/problems/1140/jeremymanning.md new file mode 100644 index 0000000..6695a0c --- /dev/null +++ b/problems/1140/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 1140: Stone Game II](https://leetcode.com/problems/stone-game-ii/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 3d1ae8a9914949728d79b76b8b41b9c746c35547 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Mon, 19 Aug 2024 23:36:40 -0400 Subject: [PATCH 023/573] My solution for 1140 --- problems/1140/jeremymanning.md | 120 ++++++++++++++++++++++++++++++++- 1 file changed, 118 insertions(+), 2 deletions(-) diff --git a/problems/1140/jeremymanning.md b/problems/1140/jeremymanning.md index 6695a0c..0058c9d 100644 --- a/problems/1140/jeremymanning.md +++ b/problems/1140/jeremymanning.md @@ -1,11 +1,127 @@ # [Problem 1140: Stone Game II](https://leetcode.com/problems/stone-game-ii/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- This one seems tricky...I'm sort of surprised it's a "Medium" problem. There must be a relatively straightforward solution, just based on its difficulty rating. +- I'm assuming (based on recent problems) that there's a dynamic programming approach. It'll probably look something like: + - `score[i]` stores the maximum number of stones Alice can accumulate through turn `i`. And then the *next* entry must be computable using some function of `score[i]`. Some unknowns: + - Do we also need a dynamic programming "tracker" for Bob's moves? + - I'm also not sure what the function should even look like +- What *do* we know? + - Alice can take either 1 or 2 piles initially. So if `len(piles) <= 2`, then we can just return `sum(piles)`. + - Beyond that...let's see...we should (obviously) try to maximize Alice's score while minimizing Bob's score. But how can we do that? + - I'm not sure if this will factor into the actual solution, but in the given examples, it seems like there are two scenarios that seem potentially prototypical: + - If all of the values are sort of similar, then we should just try to maximize the number of piles Alice gets. Note: we'll need to come back to *how* this might be done. + - If there's a single pile with a much bigger value, then we should do what we can to get *that* pile. Again, I'm not sure how we might do that. + - Hmmm. What might a "brute force" solution look like? + - We could do a breadth-first search: + - Initialize Alice's max score to 0 + - start the queue with both of Alice's possible moves (let's have each element also store the current value of `M`, Bob's score, and the position of the next stone). Either she can take only pile 1, or both piles 1 and 2 + - For each subsequent move (until the queue is empty): + - Note: I'm not sure yet how we should handle Bob's moves. Do we want a separate queue for Bob? Or can we put him in the same queue and then track whose turn it is? + - Dequeue the front of the queue and enqueue all of the possible next turns (if any) + - When there are no possible moves left for the given move sequence, set Alice's max score to the max of the current max and the new sequence's score + - Then just return Alice's maximum score + - We could use also build this as a depth-first search by changing the queue to a stack + - It's certainly not efficient to do this...but on the other hand, maybe it'll be OK since the maximum number of piles is 100? +- If we pursue this approach, I'm guessing we're going to run up against a "time limit exceeded" error. At the same time, I can't think of another obvious approach off the top of my head. So let's go with it, and then see if it passes. ## Refining the problem, round 2 thoughts +- There are a few things to solve: + - First, how should moves be enqueued? + - We could potentially store moves as dictionaries: + - Turn: whose turn is it next? ("A" or "B") + - Alice's total score + - Index of the next-to-be-considered pile + - Current value of `M` + - Well actually, that's not *so* bad-- we could just represent this as a simple list, like `player, alice_score, i, M = ["A", 20, 5, 2]` + - Second, should we maintain separate queues for Alice and Bob? I don't think so-- since we have a representation of whose turn it is already (using the above implementation), we'll just need to enqueue both Bob's and Alice's turns using the same queue. + - I don't think it'll end up mattering much if we use a breadth-first or depth-first search. Let's just go with breadth-first (why not?). We can use a `dequeue` object to support fast pops from the front of the queue. +- Another unknown: how do we ensure that *Bob* plays optimally? I'm wondering if we should update Alice's max score only if Bob's moves up to that point also maximize *his* score. But...that's not quite right, because Alice gets to go first. I'm not sure how to deal with this. I'm going to ignore this temporarily, with the recognition that we'll likely get some answers wrong. I'm hoping this can be caught in testing before I submit. +- In any case...let's try it! ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +from collections import deque + +class Solution: + def stoneGameII(self, piles: List[int]) -> int: + max_score = 0 + if len(piles) <= 2: + return sum(piles) + + moves = deque([("B", piles[0], 1, 1), ("B", sum(piles[:2]), 2, 2)]) + while moves: + current_player, score, i, M = moves.popleft() + if i >= len(piles): + max_score = max(max_score, score) + continue + + if current_player == "A": + next_player = "B" + else: + next_player = "A" + + X = 0 + for j in range(i, min(i + 2 * M + 1, len(piles))): + X += 1 + if current_player == "A": + score += piles[j] + moves.append((next_player, score, j + 1, max(M, X))) + + return max_score ``` +- Ok...this is giving the wrong answers for both of the given examples. I'm thinking there are a few issues: + - I'm still pretty sure this is too inefficient. So...even if I get it working, it'll still likely not work + - This approach doesn't optimize *Bob's* moves. I think that's what the issue here is. +- My "gut" is that (like I mentioned in my initial thoughts) there's likely to be a dynamic programming solution to this. We'll need some function `maximize_score(i, M)` that maximizes the score starting from pile `i`, with the given value of `M`. Then we'll need to find some way of "reusing computations" by finding `maximize_score(j, new_M)` for $j > i$, given `maximize_score(i, M)`. There will be lots of re-used computations, so we'll need a hash table or similar to save the max scores for each position. + - This would also let us simultaneously optimize Alice's and Bob's scores-- essentially we want to know how many stones one player can get, and the remaining stones will go to the other player. These can be computed by asking: + - How many stones are there left (in the remaining piles) after pile `i`? + - What's the max achievable score starting from pile `i`, given `M`? +- Let's try this... +```python +class Solution: + def stoneGameII(self, piles: List[int]) -> int: + # first compute the number of stones remaining, starting from position i + remaining = [0] * len(piles) + remaining[-1] = piles[-1] + for i in range(len(piles) - 2, -1, -1): + remaining[i] = remaining[i + 1] + piles[i] + + # start a cache + cache = {} + + # define the maximize_score function + def maximize_score(i, M): + # already collected the last pile? + if i >= len(piles): + return 0 + + # already computed? + if (i, M) in cache: + return cache[(i, M)] + + # do the work... + stones = 0 + for X in range(1, 2 * M + 1): + if i + X <= len(piles): + # pick the max between... + # option 1: what we've already collected + # option 2: all remaining stones except whatever the other player can (maximally) collect from the remaining piles + stones = max(stones, remaining[i] - maximize_score(i + X, max(M, X))) + cache[(i, M)] = stones + return stones + + # just maximize the score for the first move (which is Alice's, by definition) + return maximize_score(0, 1) +``` +- Great, given test cases pass! +- Let's try some others... + - `piles = [1, 8168, 33, 5414, 9711, 5564, 1428, 2427, 7513, 9081, 3128, 7708, 6822, 858, 7406, 288, 5390, 5670, 9507, 5556, 4452, 1542, 525, 6223, 3839, 498, 5924, 4971, 4594, 1580, 3849, 8261, 4955, 2528, 6023, 2006, 2469, 6165, 5737, 5405, 4702, 2971, 4448, 3363, 8617, 5516, 2569, 9153, 4014, 3836, 656, 9594, 1572, 7157, 2961, 9234, 5175, 7570, 5518, 6656, 5731, 572, 3800, 5964, 4153, 3035, 887, 904, 470, 3636, 202, 4085, 4631, 6983, 1464, 4407, 1105, 6009, 3107, 7063, 9950, 3952, 3367, 2342, 6028, 7579, 5892, 2908, 3977, 6930, 2212, 9465, 9933, 1809, 7359, 790, 8383, 5187, 6471, 4048]`: pass (so...we're probably good, but for kicks let's try another also) + - `piles = [4997, 3371, 505, 9687, 1343, 6480, 7798, 5756, 2034, 4628, 597, 4217, 9076, 1898, 8450, 99, 7843, 1539, 6546, 1760, 5541, 8832, 1795, 7707, 9128, 4716, 3355, 713, 3726, 219, 7396, 7667, 3141, 1336, 1316, 8931, 9100, 9414, 8401, 9958, 7069, 653, 8297, 178, 4968, 6541, 8409, 4736, 9620, 1667, 4508, 3842, 1650, 7707, 8403, 2714, 8310, 6107, 8729, 8381, 8657, 3158, 8997, 5616, 8721, 7826, 7543, 3144, 5755, 5473, 5242, 934, 4713, 8718, 1585, 4687, 7344, 5119, 552, 36, 615, 5502, 283, 9370, 8944, 8719, 4551, 116, 7375, 7509, 3225, 5372, 5960, 2657, 1136, 1924, 7458, 4692, 303, 9060]`: pass +- Let's submit... + +![Screenshot 2024-08-19 at 11 35 19 PM](https://github.com/user-attachments/assets/503639ed-72be-44fa-8239-9f5b4e6f0302) + +Solved! + + From 1fd10dec293b9eb46a7c054fd4dcbce30b2b6f74 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 21 Aug 2024 00:26:25 +0000 Subject: [PATCH 024/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f9ded14..a36c46e 100644 --- a/README.md +++ b/README.md @@ -60,6 +60,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 18, 2024 | [264](https://leetcode.com/problems/ugly-number-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/264) | 🟡 Medium | | August 19, 2024 | [650](https://leetcode.com/problems/2-keys-keyboard/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/650) | 🟡 Medium | | August 20, 2024 | [1140](https://leetcode.com/problems/stone-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1140) | 🟡 Medium | +| August 21, 2024 | [664](https://leetcode.com/problems/strange-printer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/664) | 🔴 Hard | # Join our discussion! From 1772dca951ad87c2caf3818e72df60d973f3b3d7 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 21 Aug 2024 02:38:00 +0000 Subject: [PATCH 025/573] Creating a template for jeremymanning's solution to problem 664 --- problems/664/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/664/jeremymanning.md diff --git a/problems/664/jeremymanning.md b/problems/664/jeremymanning.md new file mode 100644 index 0000000..a9c6233 --- /dev/null +++ b/problems/664/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 664: Strange Printer](https://leetcode.com/problems/strange-printer/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 0049e2f2a4636fb53b8e3c81c4de5d73cad438ff Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Tue, 20 Aug 2024 23:14:00 -0400 Subject: [PATCH 026/573] My solution for 664 --- problems/664/jeremymanning.md | 115 +++++++++++++++++++++++++++++++++- 1 file changed, 113 insertions(+), 2 deletions(-) diff --git a/problems/664/jeremymanning.md b/problems/664/jeremymanning.md index a9c6233..87bc07c 100644 --- a/problems/664/jeremymanning.md +++ b/problems/664/jeremymanning.md @@ -1,11 +1,122 @@ # [Problem 664: Strange Printer](https://leetcode.com/problems/strange-printer/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- Ugh, *another* dynamic programming problem!? I hope this sequence ends soon 😱 +- Ok, so how can we solve this one... 🤔 + - First we can do some housekeeping by removing any repeated characters. This will take $O(n)$ time, which is "free" since the full algorithm will almost certainly by slower than that: + ```python + def simplify(s): + x = s[0] + for c in s[1:]: + if c != x[-1]: + x += c + return x + ``` + - Next, we should define a helper function: + - Take in...what? Maybe a start index and end index for a substring of the (simplified) `s`? We could also pass in a substring directly, but that'd require copying the substrings in memory (inefficient). Since nothing will get modified, I think we can just reference using indices. + - The helper function should return the turns required for that substring + - To figure out: how will this work? + - Then the function will be something like + ```python + s = simplify(s) + return helper(0, len(s) - 1) + ``` +- I'm guessing `helper` will end up calling the same indices multiple times recursively, so we should also cache the results to avoid re-computing them: +```python +cache = {} +def helper(a, b): + if (a, b) in cache: + return cache[(a, b)] + + turns = + cache[(a, b)] = turns + return turns +``` +- So the "trick" here will be figuring out how that `helper` function should look. ## Refining the problem, round 2 thoughts +- If the substring is empty, return 0. This happens if `a > b`. +- If the substring is just a single character, return 1 (`a == b`) +- We'll need to iteratively improve on the number of turns. The worst case would be `b - a + 1` (i.e., one turn per character). + - If there are duplicated characters (since we've already simplified, these will be separated by intervening characters), we can improve on this worst case. So we'll need to detect duplicates. + - We could start at the first character, and see if there are any duplicates of *that* character. If we find a duplicate (say the first one occurs at position `j`) then we can save one turn (print the duplicate character, then figure out how many turns are needed for `s[a + 1:j]`. So the total for that sub-sequence would be `1 + helper(a, j - 1)`. Then we can skip over character `j`. Then we need to compute the number of turns needed for `s[j + 1:b]`. We can update `min_turns = min(min_turns, helper(a, j - 1) + helper(j + 1, b))` + - If we find *another* duplicate later on in the sequence, we can just repeat this process. But the cache will avoid re-computing things many times. +- Let's try this...it might not be too bad. I might be missing something, but I'm surprised this is a "hard" problem; the recent "medium" problems have seemed trickier! ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def strangePrinter(self, s: str) -> int: + def simplify(s): + x = s[0] + for c in s[1:]: + if c != x[-1]: + x += c + return x + + s = simplify(s) + cache = {} + def helper(a, b): + if a > b: + return 0 + elif a == b: + return 1 + elif (a, b) in cache: + return cache[(a, b)] + + min_turns = b - a + 1 + for i in range(a + 1, b + 1): + if s[a] == s[i]: + min_turns = min(min_turns, helper(a, i - 1) + helper(i + 1, b)) + cache[(a, b)] = min_turns + return min_turns + + return helper(0, len(s) - 1) ``` +- Given test cases pass +- Let's try some longer strings: + - `s = "abaabababaabababababbbabababacccbbcbcbabaababa"`: pass(!!) + - `s = "ddzdmpdnrmndphslxhewdhrnwlmlinkpttuopysqgvhssxqxiozhffyxwvyfcwhkpxxcmxzxvodtjsiiuzzmxveddcvtuhxanzgb": womp womp...fail 😞 + - Ok...let's brainstorm...I think there are a few possible things that could be happening: + - Most likely: the logic of just checking for the first matching character might not make sense. How do we match other characters? + - Actually, maybe we should initialize `min_turns` to `1 + helper(a + 1, b)`. That way each recursive call will consider matches of the "new `a`" in turn. I wonder if that will just fix the problem "for free." +```python +class Solution: + def strangePrinter(self, s: str) -> int: + def simplify(s): + x = s[0] + for c in s[1:]: + if c != x[-1]: + x += c + return x + + s = simplify(s) + cache = {} + def helper(a, b): + if a > b: + return 0 + elif a == b: + return 1 + elif (a, b) in cache: + return cache[(a, b)] + + min_turns = 1 + helper(a + 1, b) + for i in range(a + 1, b + 1): + if s[a] == s[i]: + min_turns = min(min_turns, helper(a, i - 1) + helper(i + 1, b)) + cache[(a, b)] = min_turns + return min_turns + + return helper(0, len(s) - 1) +``` +- That fixes the above test cases! Let's try some more... +- `s = "niqmxxbwvonppouiypidwbqmodqvtnlaxxdgpayhmzywnyojfkqobatdyhfkzayazifwqyfpgxlpbupyascdfnqtnmrdlwwkagiq": pass +- `s = "naajdcjcrvbhmjxgkenbqdkikmnxufughnjwasclwuvrenhksnosyigmnovmexmegklcqllfmxbbhtvazzcqhltoiukvsvgnwyvl": pass +- What about some silly cases? + - `s = "aaaaaaaaaaa": pass +- Ok, let's try submitting... + +![Screenshot 2024-08-20 at 11 12 39 PM](https://github.com/user-attachments/assets/281bcbb9-80ea-419e-bf2c-727c81ab59b7) + +Solved! + From 4ac704199276652e392f26a31377f1d764f81191 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Tue, 20 Aug 2024 23:38:31 -0400 Subject: [PATCH 027/573] =?UTF-8?q?Finally=20solved=201937=20=F0=9F=8E=89!?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- problems/1937/jeremymanning.md | 42 ++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/problems/1937/jeremymanning.md b/problems/1937/jeremymanning.md index 8a0e612..f9dd04f 100644 --- a/problems/1937/jeremymanning.md +++ b/problems/1937/jeremymanning.md @@ -79,3 +79,45 @@ class Solution: - I'm not sure if we need a forward/backward pass through `points`, or a left/right pass through each column, or both, or neither - It seems like we should be able to say something like: if we've gotten to column `j`, considering each column up to `j`, let's compute our best possible score - So I guess we should also track the reverse direction, if we've gotten to column `j`, considering each column *after* `j` in turn...and then we'll need to compute the max of both of those options. + +## Finally coming back to this +- Now that I'm getting a feel for these dynamic programming problems, I have a better idea of how to implement this +- Let's go through one row at a time. The current row is `i`. +- We can initialize a `max_points` array to the first row's values (when `i` is 0) +- For each subsequent row: + - We want to compute the best possible score for each column, factoring in the previous rows (up to row `i - 1`) and the cost of moving + - We should do both a forward pass (moving from some column *before* `j` to column `j`) and a backward pass (moving from some column *after* `j` to column `j`) and take the max of those options + `points[i][j]`. +- Can we cache anything? I don't think we need to... +- I think this will be straightforward to implement. Let's try it... +```python +class Solution: + def maxPoints(self, points: List[List[int]]) -> int: + max_points = points[0] + + for i in range(1, len(points)): + forward = [0] * len(points[i]) + forward[0] = max_points[0] + for j in range(1, len(points[i])): + forward[j] = max(forward[j - 1], max_points[j] + j) + + backward = [0] * len(points[i]) + backward[-1] = max_points[-1] - (len(points[i]) - 1) + for j in range(len(points[i]) - 2, -1, -1): + backward[j] = max(backward[j + 1], max_points[j] - j) + + for j in range(len(points[i])): + max_points[j] = points[i][j] + max(forward[j] - j, backward[j] + j) + + return max(max_points) +``` +- Given test cases now pass +- The cases that failed above now pass too +- How about some more: + - `points = [[5, 70, 50, 20], [72, 57, 58, 96], [13, 46, 53, 84], [28, 25, 1, 3]]`: pass + - `points = [[977, 428, 42, 956, 54, 85, 874, 802, 899, 140, 20, 162, 934, 343, 490, 530, 954, 747, 80, 66, 245, 611, 900, 500, 58, 523, 851, 116, 574, 12, 674, 467, 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727, 91, 398, 741, 843, 417, 427, 83, 201, 963, 668, 415, 398, 856, 404, 617, 108, 629, 388, 136, 549, 22, 746, 894, 454, 301, 890, 704, 742, 586, 618, 156, 789, 837, 880, 191, 325, 127, 884, 535, 29, 552, 829, 56, 402, 568, 59, 782, 190, 295, 66, 540, 433, 682, 152, 160, 65, 998, 660, 923, 627, 58, 298, 981, 951, 334, 236, 283, 71, 887, 431, 395, 482, 798, 705, 11, 73, 261, 656, 272, 611, 962, 233, 634, 1, 239, 821, 558, 484, 381, 79, 870, 960, 385, 536, 619, 541, 723, 362, 210, 435, 365, 350, 205, 406, 910, 990, 253, 165, 810, 756, 219, 507, 665, 152, 197, 535, 419, 747, 199, 521, 957, 590, 329, 829, 595, 604, 699, 333, 303, 651, 23, 265, 668, 775, 440, 727, 29, 318, 695, 5, 764, 718, 457, 250, 712, 89, 961, 718, 453, 61, 520, 131, 496, 650, 630], [347, 196, 97, 326, 675, 646, 672, 721, 117, 367, 880, 237, 962, 789, 119, 619, 444, 96, 805, 56, 336, 206, 69, 16, 813, 482, 43, 863, 722, 452, 571, 242, 604, 926, 559, 977, 393, 588, 334, 588, 28, 754, 112, 218, 384, 842, 76, 795, 770, 324, 900, 853, 806, 471, 475, 626, 295, 95, 293, 756, 847, 138, 222, 558, 695, 477, 973, 86, 235, 649, 415, 940, 974, 182, 707, 502, 800, 539, 850, 279, 644, 649, 792, 651, 128, 920, 494, 712, 344, 901, 296, 75, 124, 702, 495, 39, 997, 320, 84, 771, 603, 813, 246, 683, 42, 210, 549, 305, 18, 664, 82, 426, 39, 294, 661, 44, 383, 563, 842, 519, 798, 16, 721, 252, 895, 492, 426, 335, 491, 975, 299, 321, 323, 216, 590, 975, 173, 755, 702, 735, 736, 427, 242, 696, 980, 980, 807, 455, 163, 212, 130, 766, 666, 314, 169, 550, 966, 343, 529, 577, 743, 618, 194, 127, 516, 148, 922, 210, 790, 472, 514, 151, 690, 493, 761, 368, 98, 412, 283, 845, 361, 502, 331, 617, 342, 249, 485, 547, 118, 873, 86, 398, 113, 818, 488, 450, 907, 459, 230, 422, 614, 263, 196, 903, 365, 746, 466, 354, 497, 712, 443, 70, 826, 599, 267, 689, 394, 679, 955, 481, 660, 928, 888, 285, 154, 97, 660, 238, 6, 38, 438, 178, 28, 812, 822, 550, 585, 332, 756, 781, 763, 451, 913, 443, 185, 608, 49, 170, 643, 623, 420, 872, 403, 324, 775, 896, 219]]`: pass +- Ok, let's try submitting... + +![Screenshot 2024-08-20 at 11 38 05 PM](https://github.com/user-attachments/assets/389562fc-7467-4478-a67c-88df66a40ff6) + +Finally solved! + From b119987b5c81dee171534a4ea7cc0ce92a9b218a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 22 Aug 2024 00:05:20 +0000 Subject: [PATCH 028/573] Creating a template for jeremymanning's solution to problem 476 --- problems/476/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/476/jeremymanning.md diff --git a/problems/476/jeremymanning.md b/problems/476/jeremymanning.md new file mode 100644 index 0000000..2e338cf --- /dev/null +++ b/problems/476/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 476: Number Complement](https://leetcode.com/problems/number-complement/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From f6fef11424019544d1babba264c39e89b2ff0503 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Wed, 21 Aug 2024 20:08:54 -0400 Subject: [PATCH 029/573] My solution for 476 --- problems/476/jeremymanning.md | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/problems/476/jeremymanning.md b/problems/476/jeremymanning.md index 2e338cf..ed086e2 100644 --- a/problems/476/jeremymanning.md +++ b/problems/476/jeremymanning.md @@ -1,11 +1,20 @@ # [Problem 476: Number Complement](https://leetcode.com/problems/number-complement/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- This one is trivial-- there are built-in functions that can help ## Refining the problem, round 2 thoughts +- We just need to return `int(bin(num)[2:].replace('0', 'x').replace('1', '0').replace('x', '1'), 2)` ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def findComplement(self, num: int) -> int: + return int(bin(num)[2:].replace('0', 'x').replace('1', '0').replace('x', '1'), 2) ``` +- Given test cases pass +- Submitting... + +![Screenshot 2024-08-21 at 8 08 15 PM](https://github.com/user-attachments/assets/0c32eac5-1704-46af-9ca3-24a00928b7ef) + +Solved! From f9a8454c8e7bea9cc354a4a79b3eed1008dcdb1f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 22 Aug 2024 00:26:32 +0000 Subject: [PATCH 030/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a36c46e..2df4692 100644 --- a/README.md +++ b/README.md @@ -61,6 +61,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 19, 2024 | [650](https://leetcode.com/problems/2-keys-keyboard/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/650) | 🟡 Medium | | August 20, 2024 | [1140](https://leetcode.com/problems/stone-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1140) | 🟡 Medium | | August 21, 2024 | [664](https://leetcode.com/problems/strange-printer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/664) | 🔴 Hard | +| August 22, 2024 | [476](https://leetcode.com/problems/number-complement/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/476) | 🟢 Easy | # Join our discussion! From f0277cc58fdbe0cdab949e28fb07e237da60391d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 23 Aug 2024 00:23:08 +0000 Subject: [PATCH 031/573] Creating a template for jeremymanning's solution to problem 592 --- problems/592/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/592/jeremymanning.md diff --git a/problems/592/jeremymanning.md b/problems/592/jeremymanning.md new file mode 100644 index 0000000..06e9c3d --- /dev/null +++ b/problems/592/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 592: Fraction Addition and Subtraction](https://leetcode.com/problems/fraction-addition-and-subtraction/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 5ef9975870a27e1b5968283653c194ed2583e648 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 23 Aug 2024 00:26:30 +0000 Subject: [PATCH 032/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2df4692..eae43f0 100644 --- a/README.md +++ b/README.md @@ -62,6 +62,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 20, 2024 | [1140](https://leetcode.com/problems/stone-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1140) | 🟡 Medium | | August 21, 2024 | [664](https://leetcode.com/problems/strange-printer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/664) | 🔴 Hard | | August 22, 2024 | [476](https://leetcode.com/problems/number-complement/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/476) | 🟢 Easy | +| August 23, 2024 | [592](https://leetcode.com/problems/fraction-addition-and-subtraction/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/592) | 🟡 Medium | # Join our discussion! From 389521d8a089e1639a204c242dd2ce045b09ddbc Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Fri, 23 Aug 2024 00:11:42 -0400 Subject: [PATCH 033/573] My solution for 592 --- problems/592/jeremymanning.md | 335 +++++++++++++++++++++++++++++++++- 1 file changed, 333 insertions(+), 2 deletions(-) diff --git a/problems/592/jeremymanning.md b/problems/592/jeremymanning.md index 06e9c3d..27bbd91 100644 --- a/problems/592/jeremymanning.md +++ b/problems/592/jeremymanning.md @@ -1,11 +1,342 @@ # [Problem 592: Fraction Addition and Subtraction](https://leetcode.com/problems/fraction-addition-and-subtraction/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- First we'll need to convert all of the fractions to a common denominator. The simplest way to do this is: + - Take all of the unique denominators and multiply them together to get the new denominators + - We can save some time-- first sort the denominators in ascending order. Then, as we're adding new denominators, check whether the new denominator `d` is evenly divisible by any of the denominators that have been added so far. If so, divide `d` by those factors in the list before adding it (assuming it's not already in the list). + - Take each numerator (`n`) and divide it by (`common_denominator / d`), where `d` is the original denominator +- Next, we'll add/subtract the adusted numerators to get the result's numerator +- Then at the end, we'll need to reduce the fraction by dividing both the numerator and denominator of the result by any denominators in the `unique_denominators` list that they are both cleanly divisible by (e.g., `n % x == 0 and d % x == 0`) +- With this approach we don't really need to worry about the special case where the answer is an integer, since the "reducing the fractions" step will result in 1 in that case, which is the desired format ## Refining the problem, round 2 thoughts +- Things to solve: + - How do we get all of the numerators, denominators, and coefficients? We could just loop through and parse it all manually by searching for `"/"` characters. Something like this: + ```python + def parse(expression): + numerators = [] + denominators = [] + + digits = '0123456789' + operators = '+-' + + if expression[0] in digits: + expression = '+' + expression + + sign = expression[0] + expression = expression[1:] + i = 0 + current_number = '' + while i < len(expression): + if expression[i] in digits: + current_number += expression[i] + else: + if len(numerators) == len(denominators): + current_number = sign + current_number + numerators.append(int(current_number)) + else: + denominators.append(int(current_number)) + current_number = '' + + if expression[i] in operators: + sign = expression[i] + + i += 1 + denominators.append(int(current_number)) + + return numerators, denominators + ``` + - How do we get the common denominator? + ```python + import math + + def common_denominator(denoms): + unique_denoms = [] + for d in sorted(denoms): + for x in unique_denoms: + if d % x == 0: + d /= x + if d not in unique_denoms: + unique_denoms.append(d) + return int(math.prod(unique_denoms)), unique_denoms + ``` + - Convert numerators to use the common denominator and sum them together + ```python + def convert_and_sum(numerators, denominators, common_denom, unique_denoms): + x = 0 + for n, d in zip(numerators, denominators): + x += int(n * (common_denom / d)) + + # now see if we can divide the sum and common denominator by a common number + for d in unique_denoms: + if (x % d == 0) and (common_denom % d == 0): + x /= d + common_denom /= d + + return f'{int(x)}/{int(common_denom)}' + ``` + - I think that's everything; let's put the pieces together! ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +import math + +class Solution: + def fractionAddition(self, expression: str) -> str: + def parse(expression): + numerators = [] + denominators = [] + + digits = '0123456789' + operators = '+-' + + if expression[0] in digits: + expression = '+' + expression + + sign = expression[0] + expression = expression[1:] + i = 0 + current_number = '' + while i < len(expression): + if expression[i] in digits: + current_number += expression[i] + else: + if len(numerators) == len(denominators): + current_number = sign + current_number + numerators.append(int(current_number)) + else: + denominators.append(int(current_number)) + current_number = '' + + if expression[i] in operators: + sign = expression[i] + + i += 1 + denominators.append(int(current_number)) + + return numerators, denominators + + def common_denominator(denoms): + unique_denoms = [] + for d in sorted(denoms): + for x in unique_denoms: + if d % x == 0: + d /= x + if d not in unique_denoms: + unique_denoms.append(d) + return int(math.prod(unique_denoms)), unique_denoms + + def convert_and_sum(numerators, denominators, common_denom, unique_denoms): + x = 0 + for n, d in zip(numerators, denominators): + x += int(n * (common_denom / d)) + + # now see if we can divide the sum and common denominator by a common number + for d in unique_denoms: + if (x % d == 0) and (common_denom % d == 0): + x /= d + common_denom /= d + + return f'{int(x)}/{int(common_denom)}' + + nums, denoms = parse(expression) + common_denom, unique_denoms = common_denominator(denoms) + return convert_and_sum(nums, denoms, common_denom, unique_denoms) +``` +- Given test cases pass +- Let's make up some other examples: +```python +n_terms = 10 +def random_op(): + if random.random() > 0.5: + return '+' + else: + return '-' +expression = ''.join([f'{random_op()}{random.randint(0, 10)}/{random.randint(1, 10)}' for _ in range(n_terms)]) +if expression[0] == '+': + expression = expression[1:] +print(expression) ``` + +- `expression = "-8/6-3/1+2/1+5/10-10/10+7/4+0/9-4/10+7/5+6/1"`: pass +- `expression = "-2/9+6/2+9/1-9/10-4/10-9/6-0/5+7/5+4/4-6/4"`: fail! returns "99/10" instead of "889/90" -- maybe a rounding error? + - I'm noticing a potential optimization: if the numerator is 0, it's actually not critical that we add the denominator. We can just add "1" to the denominator list instead. + - The `common_denominator` function doesn't seem to be working correctly. For this example, it gives the common denominator as "30" but clearly this isn't correct, since neither 9 nor 4 divide evenly into 30. The correct answer is "270". So what's going wrong... 🤔. Let's debug: + ```python + import math + + def common_denominator(denoms): + unique_denoms = [] + for d in denoms: + if d not in unique_denoms: + unique_denoms.append(d) + + print(f'sorted unique denominators: {list(sorted(unique_denoms))}') + reduced_denoms = [] + for d in sorted(unique_denoms): + print(f'considering next: {d}') + if d == 1: + print('\tskipping (denominator is 1)') + continue + for x in reduced_denoms: + if d % x == 0: + print(f'\tdivisible by {x}') + d /= x + d = int(d) + print(f'\tnew denominator: {d}') + if d not in reduced_denoms: + reduced_denoms.append(d) + print(f'\tadding {d} to reduced_denoms; updated list: {reduced_denoms}') + else: + print(f'\t{d} has already been added to the list; skipping') + return int(math.prod(reduced_denoms)) + ``` + - For the given example, I'm getting this output: + ``` + sorted unique denominators: [1, 2, 4, 5, 6, 9, 10] + considering next: 1 + skipping (denominator is 1) + considering next: 2 + adding 2 to reduced_denoms; updated list: [2] + considering next: 4 + divisible by 2 + new denominator: 2 + 2 has already been added to the list; skipping + considering next: 5 + adding 5 to reduced_denoms; updated list: [2, 5] + considering next: 6 + divisible by 2 + new denominator: 3 + adding 3 to reduced_denoms; updated list: [2, 5, 3] + considering next: 9 + divisible by 3 + new denominator: 3 + 3 has already been added to the list; skipping + considering next: 10 + divisible by 2 + new denominator: 5 + divisible by 5 + new denominator: 1 + adding 1 to reduced_denoms; updated list: [2, 5, 3, 1] + ``` + - So now I can see what the issue is: the `d % x` test is actually filtering out the wrong numbers. E.g., when we consider 4, the 4 should replace the 2 instead of skipping the 4 because it's divisible by 2. Similarly, when we get to 9, the 9 should replace the 3 instead of skipping 9 because it's dividible by 3. So let's rewrite this accordingly (with debug statements): + ```python + import math + + def common_denominator(denoms): + unique_denoms = [] + for d in denoms: + if d not in unique_denoms: + unique_denoms.append(d) + + print(f'sorted unique denominators: {list(sorted(unique_denoms))}') + reduced_denoms = [] + for d in sorted(unique_denoms): + print(f'considering next: {d}') + if d == 1: + print('\tskipping (denominator is 1)') + continue + for i, x in enumerate(reduced_denoms): + if d % x == 0: + print(f'\tdivisible by {x}; replacing {x} with {d}') + if d not in reduced_denoms: + reduced_denoms[i] = d + print(f'\tupdated list: {reduced_denoms}') + if d not in reduced_denoms: + reduced_denoms.append(d) + print(f'\tupdated list: {reduced_denoms}') + reduced_denoms = list(set(reduced_denoms)) + print('after removing duplicates: ', reduced_denoms) + return int(math.prod(reduced_denoms)) + ``` + - For the "working example," we get: + ``` + sorted unique denominators: [1, 2, 4, 5, 6, 9, 10] + considering next: 1 + skipping (denominator is 1) + considering next: 2 + updated list: [2] + considering next: 4 + divisible by 2; replacing 2 with 4 + updated list: [4] + considering next: 5 + updated list: [4, 5] + considering next: 6 + updated list: [4, 5, 6] + considering next: 9 + updated list: [4, 5, 6, 9] + considering next: 10 + divisible by 5; replacing 5 with 10 + updated list: [4, 10, 6, 9] + after removing duplicates: [9, 10, 4, 6] + ``` + - So...actually, this isn't correct either. The 10, 4, and 6 should all be divided by 2. From some googling, I see that there's actually a built-in function that will be useful here: `math.gcd` finds the greatest common divisor of two integers. So assuming we don't have any overflow issues, there's a much simpler solution: + - Multiply all of the unique denominators together to get the common denominator + - In the final step, use `math.gcd` to divide both the numerator and denominator by their greatest common divisor so that the fraction is reduced properly. +- Revised solution: +```python +import math + +class Solution: + def fractionAddition(self, expression: str) -> str: + def parse(expression): + numerators = [] + denominators = [] + + digits = '0123456789' + operators = '+-' + + if expression[0] in digits: + expression = '+' + expression + + sign = expression[0] + expression = expression[1:] + i = 0 + current_number = '' + while i < len(expression): + if expression[i] in digits: + current_number += expression[i] + else: + if len(numerators) == len(denominators): + current_number = sign + current_number + numerators.append(int(current_number)) + else: + denominators.append(int(current_number)) + current_number = '' + + if expression[i] in operators: + sign = expression[i] + + i += 1 + denominators.append(int(current_number)) + + return numerators, denominators + + def common_denominator(denoms): + return math.prod(list(set(denoms))) + + def convert_and_sum(numerators, denominators, common_denom): + x = 0 + for n, d in zip(numerators, denominators): + x += int(n * (common_denom / d)) + + # reduce the fraction + y = math.gcd(x, common_denom) + x /= y + common_denom /= y + + return f'{int(x)}/{int(common_denom)}' + + nums, denoms = parse(expression) + common_denom = common_denominator(denoms) + return convert_and_sum(nums, denoms, common_denom) +``` +- Now all of these test cases work! +- Let's try some more... + - `expression = "-0/7+2/7+5/4-3/8+6/9-4/5-4/10+2/7+0/3-2/9"`: pass + - `expression = "8/9+8/9+10/9-4/8+8/1-2/4+1/6-2/2-0/4+7/5"`: pass +- Ok, submitting! + +![Screenshot 2024-08-23 at 12 07 43 AM](https://github.com/user-attachments/assets/28057729-c3bf-4ef5-9043-8c087711b561) + +Solved 🥳! From 8e83a752699fe7685cda5a3acbc9c98e422dbd50 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 24 Aug 2024 00:25:50 +0000 Subject: [PATCH 034/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index eae43f0..912c00d 100644 --- a/README.md +++ b/README.md @@ -63,6 +63,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 21, 2024 | [664](https://leetcode.com/problems/strange-printer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/664) | 🔴 Hard | | August 22, 2024 | [476](https://leetcode.com/problems/number-complement/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/476) | 🟢 Easy | | August 23, 2024 | [592](https://leetcode.com/problems/fraction-addition-and-subtraction/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/592) | 🟡 Medium | +| August 24, 2024 | [564](https://leetcode.com/problems/find-the-closest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/564) | 🔴 Hard | # Join our discussion! From 168f95397d4bb46edde961d3dfa2bbdd6645ff1c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 24 Aug 2024 02:23:25 +0000 Subject: [PATCH 035/573] Creating a template for jeremymanning's solution to problem 564 --- problems/564/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/564/jeremymanning.md diff --git a/problems/564/jeremymanning.md b/problems/564/jeremymanning.md new file mode 100644 index 0000000..45f4efb --- /dev/null +++ b/problems/564/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 564: Find the Closest Palindrome](https://leetcode.com/problems/find-the-closest-palindrome/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 81463957509f956cd5d116ee10f5ebbd9f669882 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Fri, 23 Aug 2024 23:20:33 -0400 Subject: [PATCH 036/573] Update jeremymanning.md --- problems/564/jeremymanning.md | 102 +++++++++++++++++++++++++++++++++- 1 file changed, 100 insertions(+), 2 deletions(-) diff --git a/problems/564/jeremymanning.md b/problems/564/jeremymanning.md index 45f4efb..e534926 100644 --- a/problems/564/jeremymanning.md +++ b/problems/564/jeremymanning.md @@ -1,11 +1,109 @@ # [Problem 564: Find the Closest Palindrome](https://leetcode.com/problems/find-the-closest-palindrome/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- One interesting aspect of the problem is that `n` is limited to at most 18 digits. So I'm guessing the algorithm will be $O(\mathrm{len}(n)^x)$, where $x$ is potentially something large. +- Off the top of my head, I can see a few categories of scenarios we might encounter: + - If `n` is *already* a palindrome, then we need to find a *different* palindrome. + - If `len(n)` is odd, we can just add or subtract 1 (as allowed) to the middle digit and see which is closer to `n` (or if they're equally close, just subtract 1). + - If `len(n)` is even, it's trickier. I guess we could add or subtract 1 to the *two* middle digits (again, as allowed) + - If `n` is *not* a palindrome, then: + - If `len(n)` is odd, maybe we just return `n[:len(n)//2 + 1] + n[:len(n)//2][::-1]`? + - And if `len(n)` is even, we could return `n[:len(n)//2] + n[:len(n)//2][::-1]`? +- The problem must not be this simple. Let's make something up...suppose `n = "293847"`. Since `n` is not a palindrome, and `len(n)` is even, is `293392` the closest palindrome? The difference is 455. What about 294492? The difference is 645, which is larger. But maybe there's a scenario where increasing or decreasing the middle digits might be helpful? I don't think it could hurt to check. It'd still be a very simple/fast solution. +- What if `n = 9283743`? Then, using the above procedure, we'd return 9283829 (diff = 86). What about 9284829? (diff = 1086, which is larger). Or 9282829? (diff = 914, which is also larger than 86). +- One scenario we'll need to cover is if `len(n) == 1`. If `n == '0'` then we just return `'1'`. Otherwise we should return `str(int(n) - 1)`. +- Hmm. Well...I suppose we can just try this and see what happens? We'll need to test with a bunch of examples. ## Refining the problem, round 2 thoughts +- First we'll need to check if `n` is a palindrome. We could use: +```python +def is_palindrome(n): + return n[:len(n) // 2] == n[-(len(n) // 2):][::-1] +``` + - Actually, this was easier than I thought it'd be-- we don't need to differentiate from even vs. odd-length `n`s, since the middle digit doesn't matter if `len(n)` is odd (it doesn't affect the "palindrome" status of `n`). +- We can also write a convenience function to check distances between string representations of different numbers: +```python +def dist(a, b): + return abs(int(a) - int(b)) +``` +- And also some code for incrementing or decrementing the middle digit(s): +```python +def wiggle_middle_digits(n): + x1 = n.copy() + x2 = n.copy() + + x1_middle = str(int(n[len(n) // 2]) - 1) + x2_middle = str(int(n[len(n) // 2]) + 1) + + if len(n) % 2 == 0: + x1[len(n) // 2] = x1_middle + x1[len(n) // 2 + 1] = x1_middle + x2[len(n) // 2] = x2_middle + x2[len(n) // 2 + 1] = x2_middle + else: + x1[len(n) // 2 + 1] = x1_middle + x2[len(n) // 2 + 1] = x2_middle + + if dist(n, x1) <= dist(n, x2): + return x1 + else: + return x2 +``` + +- Other than that, we just need to implement the above rules. Let's see if it works! ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +from copy import copy + +class Solution: + def nearestPalindromic(self, n: str) -> str: + def is_palindrome(n): + return n[:len(n) // 2] == n[-(len(n) // 2):][::-1] + + def dist(a, b): + return abs(int(a) - int(b)) + + def wiggle_middle_digits(n): + x1 = list(copy(n)) + x2 = list(copy(n)) + + x1_middle = str(int(n[len(n) // 2]) - 1) + x2_middle = str(int(n[len(n) // 2]) + 1) + + if len(n) % 2 == 0: + x1[len(n) // 2] = x1_middle + x1[len(n) // 2 + 1] = x1_middle + x2[len(n) // 2] = x2_middle + x2[len(n) // 2 + 1] = x2_middle + else: + x1[len(n) // 2 + 1] = x1_middle + x2[len(n) // 2 + 1] = x2_middle + + x1 = ''.join(x1) + x2 = ''.join(x2) + + if dist(n, x1) <= dist(n, x2): + return x1 + else: + return x2 + + if len(n) == 1: + if n == "0": + return "1" + else: + return str(int(n) - 1) + + if is_palindrome(n): + return wiggle_middle_digits(n) + elif len(n) % 2 == 0: + return n[:len(n)//2] + n[:len(n)//2][::-1] + else: + return n[:len(n)//2 + 1] + n[:len(n)//2][::-1] ``` +- Both given test cases pass +- Let's try a bunch of other examples: + - `n = "32459827345987"`: pass + - `n = "4387348756345786"`: pass + - `n = "438734878437834": fail! (note: I also had to fix up the "wiggle" code syntax). + - There seems to be an issue with the `wiggle_middle_digits` code-- it doesn't seem to be working as expected. However, I'm out of time for tonight, so I'll have to come back to this! From 41cd7647611259b029d3d06804749bfe30648051 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Sat, 24 Aug 2024 16:24:11 -0400 Subject: [PATCH 037/573] my solution for 564 --- problems/564/jeremymanning.md | 207 ++++++++++++++++++++++++++++++++++ 1 file changed, 207 insertions(+) diff --git a/problems/564/jeremymanning.md b/problems/564/jeremymanning.md index e534926..7dd2c36 100644 --- a/problems/564/jeremymanning.md +++ b/problems/564/jeremymanning.md @@ -107,3 +107,210 @@ class Solution: - `n = "4387348756345786"`: pass - `n = "438734878437834": fail! (note: I also had to fix up the "wiggle" code syntax). - There seems to be an issue with the `wiggle_middle_digits` code-- it doesn't seem to be working as expected. However, I'm out of time for tonight, so I'll have to come back to this! + +## Coming back to this... +- I'm debugging the `wiggle_middle_digits` code, and I notice a few issues: + - My indexing is off by 1 (the "changing" part should be): + ```python + if len(n) % 2 == 0: + x1[len(n) // 2 - 1] = x1_middle + x1[len(n) // 2] = x1_middle + x2[len(n) // 2 - 1] = x2_middle + x2[len(n) // 2] = x2_middle + else: + x1[len(n) // 2] = x1_middle + x2[len(n) // 2] = x2_middle + ``` +- Here's the updated code: +```python +from copy import copy + +class Solution: + def nearestPalindromic(self, n: str) -> str: + def is_palindrome(n): + return n[:len(n) // 2] == n[-(len(n) // 2):][::-1] + + def dist(a, b): + return abs(int(a) - int(b)) + + def wiggle_middle_digits(n): + x1 = list(copy(n)) + x2 = list(copy(n)) + + x1_middle = str(int(n[len(n) // 2]) - 1) + x2_middle = str(int(n[len(n) // 2]) + 1) + + if len(n) % 2 == 0: + x1[len(n) // 2 - 1] = x1_middle + x1[len(n) // 2] = x1_middle + x2[len(n) // 2 - 1] = x2_middle + x2[len(n) // 2] = x2_middle + else: + x1[len(n) // 2] = x1_middle + x2[len(n) // 2] = x2_middle + + x1 = ''.join(x1) + x2 = ''.join(x2) + + if dist(n, x1) <= dist(n, x2): + return x1 + else: + return x2 + + if len(n) == 1: + if n == "0": + return "1" + else: + return str(int(n) - 1) + + if is_palindrome(n): + return wiggle_middle_digits(n) + elif len(n) % 2 == 0: + return n[:len(n)//2] + n[:len(n)//2][::-1] + else: + return n[:len(n)//2 + 1] + n[:len(n)//2][::-1] +``` +- Now this test case passes. +- Let's try submitting... + +![Screenshot 2024-08-24 at 4 01 56 PM](https://github.com/user-attachments/assets/a824a5ad-935d-4e3a-b7f5-ca510f9343ba) + +- Ah. I forgot to account for this case (when `n = "10"` the correct answer should be `"9"`, not `"11"`). +- In general, there could be a whole range of these sorts of cases (not just when there are only two digits). E.g., when `n = "100000"` we should output `"99999"`. +- I think we could handle this with one more check: if `is_palindrome(str(int(n) - 1))` then return that: +```python +from copy import copy + +class Solution: + def nearestPalindromic(self, n: str) -> str: + def is_palindrome(n): + return len(n) == 1 or n[:len(n) // 2] == n[-(len(n) // 2):][::-1] + + def dist(a, b): + return abs(int(a) - int(b)) + + def wiggle_middle_digits(n): + x1 = list(copy(n)) + x2 = list(copy(n)) + + x1_middle = str(int(n[len(n) // 2]) - 1) + x2_middle = str(int(n[len(n) // 2]) + 1) + + if len(n) % 2 == 0: + x1[len(n) // 2 - 1] = x1_middle + x1[len(n) // 2] = x1_middle + x2[len(n) // 2 - 1] = x2_middle + x2[len(n) // 2] = x2_middle + else: + x1[len(n) // 2] = x1_middle + x2[len(n) // 2] = x2_middle + + x1 = ''.join(x1) + x2 = ''.join(x2) + + if dist(n, x1) <= dist(n, x2): + return x1 + else: + return x2 + + if len(n) == 1: + if n == "0": + return "1" + else: + return str(int(n) - 1) + + if is_palindrome(str(int(n) - 1)): + return str(int(n) - 1) + + if is_palindrome(n): + return wiggle_middle_digits(n) + elif len(n) % 2 == 0: + return n[:len(n)//2] + n[:len(n)//2][::-1] + else: + return n[:len(n)//2 + 1] + n[:len(n)//2][::-1] +``` +- Now `n = "10"` and `n = "1000000"` both pass; re-submitting... + +![Screenshot 2024-08-24 at 4 08 00 PM](https://github.com/user-attachments/assets/a668f936-01f1-48d3-8c39-7a0dab6e5583) + +- Oof 🤦. Right...`"00"` isn't a valid output, but the `"1"'s in `"11"` are technically the "middle digits". +- There are a bunch of these sorts of edge cases. I think we actually need to generate a *set* of candidates, and then pick the closest (or smallest + closest if there's a tie): + - First try mirroring the left half of the string + - Also try wiggling the middle digit(s) + - Check if we're in a "close to a power of 10" scenario. We can just add `"9" * (len(n) - 1)` and `"1" + "0" * (len(n) - 1) + "1"` to the set of candidates manually + - In case any of these have reproduced the original number, remove it + - If we have empty strings, all zeros, etc., we'll remove those too + - Of the remaining candidates, find the closest to `n` that is also the smallest-- we can do this by returning `min(candidates, key=lambda x: (dist(n, x), int(x)))` +- Updated solution: +```python +class Solution: + def nearestPalindromic(self, n: str) -> str: + def is_palindrome(x): + return x == x[::-1] + + def dist(a, b): + return abs(int(a) - int(b)) + + def wiggle_middle_digits(n): + x1 = list(n) + x2 = list(n) + + mid_index = len(n) // 2 + if len(n) % 2 == 0: + left_part = n[:mid_index] + x1_middle = str(int(left_part) - 1) + x2_middle = str(int(left_part) + 1) + x1 = x1_middle + x1_middle[::-1] + x2 = x2_middle + x2_middle[::-1] + else: + left_part = n[:mid_index + 1] + x1_middle = str(int(left_part) - 1) + x2_middle = str(int(left_part) + 1) + x1 = x1_middle + x1_middle[:-1][::-1] + x2 = x2_middle + x2_middle[:-1][::-1] + + # new special cases (e.g., 999 vs. 1001) + if len(x1) < len(n) or x1 == '': + x1 = "9" * (len(n) - 1) + if len(x2) > len(n) or x2 == '': + x2 = "1" + "0" * (len(n) - 1) + "1" + + return (x1, x2) + + if n == "1": + return "0" + + candidates = set() + + # mirroring + if len(n) % 2 == 0: + mid_index = len(n) // 2 + mirrored = n[:mid_index] + n[:mid_index][::-1] + else: + mid_index = len(n) // 2 + mirrored = n[:mid_index + 1] + n[:mid_index][::-1] + + candidates.add(mirrored) + + # wiggling + wiggle_candidates = wiggle_middle_digits(n) + candidates.add(wiggle_candidates[0]) + candidates.add(wiggle_candidates[1]) + + # edge cases (for when we're "near" a power of 10) + candidates.add("9" * (len(n) - 1)) + candidates.add("1" + "0" * (len(n) - 1) + "1") + + # remove bad candidates (including the original number) + candidates.discard(n) + candidates = {c for c in candidates if c and c.isdigit()} + + # return the closest/smallest + return min(candidates, key=lambda x: (dist(n, x), int(x))) +``` +- Test cases pass, including previously failing edge cases +- Submitting... 🤞 + +![Screenshot 2024-08-24 at 4 23 14 PM](https://github.com/user-attachments/assets/2f803edd-b809-4a60-9a4e-871e2a461bdd) + +- Solved! From 9c3b1a0f49255355f2aaf0c55fcfa5993df0d651 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 25 Aug 2024 00:29:46 +0000 Subject: [PATCH 038/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 912c00d..6be6dea 100644 --- a/README.md +++ b/README.md @@ -64,6 +64,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 22, 2024 | [476](https://leetcode.com/problems/number-complement/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/476) | 🟢 Easy | | August 23, 2024 | [592](https://leetcode.com/problems/fraction-addition-and-subtraction/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/592) | 🟡 Medium | | August 24, 2024 | [564](https://leetcode.com/problems/find-the-closest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/564) | 🔴 Hard | +| August 25, 2024 | [145](https://leetcode.com/problems/binary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/145) | 🟢 Easy | # Join our discussion! From b20ea4015e3add9b6ff2a1b5df7cb9cafbf4d907 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 25 Aug 2024 00:47:50 +0000 Subject: [PATCH 039/573] Creating a template for jeremymanning's solution to problem 145 --- problems/145/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/145/jeremymanning.md diff --git a/problems/145/jeremymanning.md b/problems/145/jeremymanning.md new file mode 100644 index 0000000..3b0ce87 --- /dev/null +++ b/problems/145/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 145: Binary Tree Postorder Traversal](https://leetcode.com/problems/binary-tree-postorder-traversal/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From b88a3671f57b264c26c072ce5a9f52c91c3ee520 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Sat, 24 Aug 2024 21:00:31 -0400 Subject: [PATCH 040/573] My solution for 145 --- problems/145/jeremymanning.md | 29 +++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) diff --git a/problems/145/jeremymanning.md b/problems/145/jeremymanning.md index 3b0ce87..38b6969 100644 --- a/problems/145/jeremymanning.md +++ b/problems/145/jeremymanning.md @@ -1,11 +1,36 @@ # [Problem 145: Binary Tree Postorder Traversal](https://leetcode.com/problems/binary-tree-postorder-traversal/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- A nice easy one today! This is just a depth-first search ## Refining the problem, round 2 thoughts +- Nothing too tricky here. The order should be "left, right, root" +- I think we can just return the visited notes in reverse order ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +# Definition for a binary tree node. +# class TreeNode: +# def __init__(self, val=0, left=None, right=None): +# self.val = val +# self.left = left +# self.right = right +class Solution: + def postorderTraversal(self, root: Optional[TreeNode]) -> List[int]: + vals = [] + stack = [root] + while stack: + node = stack.pop() + if node is not None: + vals.append(node.val) + stack.extend([node.left, node.right]) + return vals[::-1] ``` +- Given test cases pass +- New test case: + - `root = [1,null,2,3, 4, 5, 6, 7, null, 8, null, 9, 10, -100, -100]`: pass +- Let's submit... + +![Screenshot 2024-08-24 at 8 59 51 PM](https://github.com/user-attachments/assets/ace94bdb-eab7-409d-a465-469f71e73edb) + +- Solved! From 554fc9e881545ab1e842acbb87b62aa8287f7ee8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 26 Aug 2024 00:19:19 +0000 Subject: [PATCH 041/573] Creating a template for jeremymanning's solution to problem 590 --- problems/590/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/590/jeremymanning.md diff --git a/problems/590/jeremymanning.md b/problems/590/jeremymanning.md new file mode 100644 index 0000000..3a1ad36 --- /dev/null +++ b/problems/590/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 590: N-ary Tree Postorder Traversal](https://leetcode.com/problems/n-ary-tree-postorder-traversal/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 0b50db279eaf7e1c9df8ef5a04e869e9735b760a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 26 Aug 2024 00:27:27 +0000 Subject: [PATCH 042/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6be6dea..3010007 100644 --- a/README.md +++ b/README.md @@ -65,6 +65,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 23, 2024 | [592](https://leetcode.com/problems/fraction-addition-and-subtraction/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/592) | 🟡 Medium | | August 24, 2024 | [564](https://leetcode.com/problems/find-the-closest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/564) | 🔴 Hard | | August 25, 2024 | [145](https://leetcode.com/problems/binary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/145) | 🟢 Easy | +| August 26, 2024 | [590](https://leetcode.com/problems/n-ary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/590) | 🟢 Easy | # Join our discussion! From 049e765d152977f355ee4742da3fec1b26da4ce1 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Sun, 25 Aug 2024 22:25:45 -0400 Subject: [PATCH 043/573] My solution to 590 --- problems/590/jeremymanning.md | 37 +++++++++++++++++++++++++++++++++-- 1 file changed, 35 insertions(+), 2 deletions(-) diff --git a/problems/590/jeremymanning.md b/problems/590/jeremymanning.md index 3a1ad36..26eaee4 100644 --- a/problems/590/jeremymanning.md +++ b/problems/590/jeremymanning.md @@ -1,11 +1,44 @@ # [Problem 590: N-ary Tree Postorder Traversal](https://leetcode.com/problems/n-ary-tree-postorder-traversal/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- This problem is the same as yesterday's, but with N-ary trees instead of binary trees +- We can solve it the same way: + - Execute a depth-first search, saving values to a list as we visit each node + - Push the root, then the children (left to right) to the stack + - At the end, return the list of values in reverse order ## Refining the problem, round 2 thoughts +- The problem description doesn't say if all children are guaranteed to be non-null if there's a least one other non-null child of the given node. I guess we'll need to see what happens when we run the code. ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +""" +# Definition for a Node. +class Node: + def __init__(self, val=None, children=None): + self.val = val + self.children = children +""" + +class Solution: + def postorder(self, root: 'Node') -> List[int]: + vals = [] + stack = [root] + while stack: + node = stack.pop() + if node is not None: + vals.append(node.val) + if node.children is not None: + for c in node.children: + stack.append(c) + return vals[::-1] ``` +- Given test cases pass +- Let's try some others: + - `root = []`: pass + - `root = [1, null, 2, 3, 4, 5, 6, 7, 8, null, 9, 10, 11, 12, null, 13, 14, 15, 16, 17, null, 18, 19, 20, null, null, 21, 22, 23, null, 24]`: pass +- Ok; let's submit! + +![Screenshot 2024-08-25 at 10 25 02 PM](https://github.com/user-attachments/assets/b8800303-2301-45f7-bbdc-9ef418d6a659) + +Solved 🎉! From 8e5aef6fdeee666328265aab0fd655422ecc73cf Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 27 Aug 2024 00:27:17 +0000 Subject: [PATCH 044/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3010007..0162f3d 100644 --- a/README.md +++ b/README.md @@ -66,6 +66,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 24, 2024 | [564](https://leetcode.com/problems/find-the-closest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/564) | 🔴 Hard | | August 25, 2024 | [145](https://leetcode.com/problems/binary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/145) | 🟢 Easy | | August 26, 2024 | [590](https://leetcode.com/problems/n-ary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/590) | 🟢 Easy | +| August 27, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | # Join our discussion! From f2dc388b46514b78bbe18d832e2948a49866550e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 27 Aug 2024 02:54:15 +0000 Subject: [PATCH 045/573] Creating a template for jeremymanning's solution to problem 1514 --- problems/1514/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/1514/jeremymanning.md diff --git a/problems/1514/jeremymanning.md b/problems/1514/jeremymanning.md new file mode 100644 index 0000000..5defcfd --- /dev/null +++ b/problems/1514/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 1514: Path with Maximum Probability](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 56fcc0464c3b460f80fddc1906c20e5bd28e652b Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Tue, 27 Aug 2024 00:08:12 -0400 Subject: [PATCH 046/573] my solution for 1514 --- problems/1514/jeremymanning.md | 86 +++++++++++++++++++++++++++++++++- 1 file changed, 84 insertions(+), 2 deletions(-) diff --git a/problems/1514/jeremymanning.md b/problems/1514/jeremymanning.md index 5defcfd..3a83dc7 100644 --- a/problems/1514/jeremymanning.md +++ b/problems/1514/jeremymanning.md @@ -1,11 +1,93 @@ # [Problem 1514: Path with Maximum Probability](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- First we need a way to represent the graph more conveniently. I'm thinking we should have a hash table whose keys are nodes and whose values are lists of connected nodes + probabilities. E.g., for the first given example, `graph[0] = [(2, 0.2), (1, 0.5)]`, etc. We can build up this hash table with a single pass through the edge list + success probability list: +```python +graph = {} +for edge, prob in zip(edges, succProb): + if edge[0] in graph: + graph[edge[0]].append((edge[1], prob)) + else: + graph[edge[0]] = [(edge[1], prob)] + + if edge[1] in graph: + graph[edge[1]].append((edge[0], prob)) + else: + graph[edge[1]] = [(edge[0], prob)] +``` +- Now I think we can build up paths using BFS or DFS starting from `start_node`: + - If we hit a loop, stop and delete that path from the queue/stack + - If we reach `end_node`: + - Go back and compute the probability of this path + - If it's higher than the probability of the current best path (initialized to `0`), replace the best probability + - Then delete the path from the queue/stack +- Potential pitfalls: + - We might run out of memory if we build up the paths one node at a time. + - Ideally we could instead just build up something like probability of the path so far + last node reached. But then I'm not sure we'll be able to detect loops... + - The probabilities could get very small, leading to rounding errors. We could instead track *log* probabilities (summing as we go) and then exponentiate at the end. +- Instead of BFS/DFS, maybe we want to use a heap to keep the paths sorted by max probability. ## Refining the problem, round 2 thoughts +We could use the built-in `heapq` to do this (according to the documentation `heapq` is a max heap, but we can just multiply the probabilities by -1 so that the most probable paths appear at the "top" of the heap): + - First push the start of the path (`(-1.0, start_node)`) onto the heap + - Keep track of `n` probabilities (of reaching each node). Initialize to 0.0, except the start node (initialize to 1.0). + - While the heap is not empty: + - Pop the most probable path `(prob, last_node)` + - If we're at the end node, return `prob` + - Otherwise: + - For each neighbor `x` of `last_node` (connected with probability `new_prob`): + - Probability of path ending at `x` is `-prob * new_prob` + - If `-prob * new_prob` is greater than `probabilities[x]`: + - Update `probabilities[x]` -- this ensures we only push more probable paths than we've already found onto the heap. This also avoids loops, since visiting an already-visited node will necessarily result in a lower probability path to that node. + - Push `(prob * new_prob, x)` on the heap + - If the heap empties before we found the end, just return 0.0. ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +import heapq + +class Solution: + def maxProbability(self, n, edges, succProb, start, end): + # build the graph + graph = {} + for x in range(n): + graph[x] = [] + for edge, prob in zip(edges, succProb): + graph[edge[0]].append((edge[1], prob)) + graph[edge[1]].append((edge[0], prob)) + + # max heap + heap = [(-1.0, start)] + probabilities = [0.0] * n + probabilities[start] = 1.0 + + while heap: + p, node = heapq.heappop(heap) + if node == end: + return -p + + for x, xp in graph[node]: + new_prob = p * xp # remember: this is negative + if -new_prob > probabilities[x]: + probabilities[x] = -new_prob + heapq.heappush(heap, (new_prob, x)) + + # end not found :( + return 0.0 +``` +- Given test cases pass +- Another example: +```python +n = 7 +edges = [[0,1],[1,2],[2,3],[3,4],[4,5],[5,6]] +succProb = [0.01, 0.01, 0.01, 0.01, 0.01, 0.1] +start_node = 0 +end_node = 6 ``` +- passes! +- Ok, submitting! + +![Screenshot 2024-08-27 at 12 07 09 AM](https://github.com/user-attachments/assets/3d64e697-53a5-4cbf-a3b4-d397ea27a0f5) + +Solved! + From b500c1381e914404cec07074fef711c1beea9de0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 28 Aug 2024 00:09:38 +0000 Subject: [PATCH 047/573] Creating a template for jeremymanning's solution to problem 1905 --- problems/1905/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/1905/jeremymanning.md diff --git a/problems/1905/jeremymanning.md b/problems/1905/jeremymanning.md new file mode 100644 index 0000000..1c3e081 --- /dev/null +++ b/problems/1905/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 1905: Count Sub Islands](https://leetcode.com/problems/count-sub-islands/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From f92588e15764b8b338d33d389e8f0a9910fecb96 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 28 Aug 2024 00:27:07 +0000 Subject: [PATCH 048/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0162f3d..b28cee2 100644 --- a/README.md +++ b/README.md @@ -67,6 +67,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 25, 2024 | [145](https://leetcode.com/problems/binary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/145) | 🟢 Easy | | August 26, 2024 | [590](https://leetcode.com/problems/n-ary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/590) | 🟢 Easy | | August 27, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | +| August 28, 2024 | [1905](https://leetcode.com/problems/count-sub-islands/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1905) | 🟡 Medium | # Join our discussion! From 62aa7b9c477f2fe49626fdb31a786cb61a2d1913 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 29 Aug 2024 00:27:33 +0000 Subject: [PATCH 049/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b28cee2..da611c1 100644 --- a/README.md +++ b/README.md @@ -68,6 +68,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 26, 2024 | [590](https://leetcode.com/problems/n-ary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/590) | 🟢 Easy | | August 27, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | | August 28, 2024 | [1905](https://leetcode.com/problems/count-sub-islands/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1905) | 🟡 Medium | +| August 29, 2024 | [947](https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/947) | 🟡 Medium | # Join our discussion! From a316a80d170d6a43ab1f3f7d3295d7e1484da693 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 30 Aug 2024 00:27:44 +0000 Subject: [PATCH 050/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index da611c1..c799a5d 100644 --- a/README.md +++ b/README.md @@ -69,6 +69,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 27, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | | August 28, 2024 | [1905](https://leetcode.com/problems/count-sub-islands/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1905) | 🟡 Medium | | August 29, 2024 | [947](https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/947) | 🟡 Medium | +| August 30, 2024 | [2699](https://leetcode.com/problems/modify-graph-edge-weights/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2699) | 🔴 Hard | # Join our discussion! From 6faa40fff143b40bfa29c3b5d2903e1cc776d88e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 31 Aug 2024 00:27:29 +0000 Subject: [PATCH 051/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c799a5d..a47e2b3 100644 --- a/README.md +++ b/README.md @@ -70,6 +70,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 28, 2024 | [1905](https://leetcode.com/problems/count-sub-islands/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1905) | 🟡 Medium | | August 29, 2024 | [947](https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/947) | 🟡 Medium | | August 30, 2024 | [2699](https://leetcode.com/problems/modify-graph-edge-weights/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2699) | 🔴 Hard | +| August 31, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | # Join our discussion! From 393cbdb20a5ebb5156683750812c94afef743bad Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 1 Sep 2024 00:33:58 +0000 Subject: [PATCH 052/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a47e2b3..12a0af7 100644 --- a/README.md +++ b/README.md @@ -71,6 +71,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 29, 2024 | [947](https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/947) | 🟡 Medium | | August 30, 2024 | [2699](https://leetcode.com/problems/modify-graph-edge-weights/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2699) | 🔴 Hard | | August 31, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | +| September 1, 2024 | [2022](https://leetcode.com/problems/convert-1d-array-into-2d-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2022) | 🟢 Easy | # Join our discussion! From 0166f598f26371a77b5b953a8c9fb1b392ab4501 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 1 Sep 2024 01:42:36 +0000 Subject: [PATCH 053/573] Creating a template for jeremymanning's solution to problem 2022 --- problems/2022/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/2022/jeremymanning.md diff --git a/problems/2022/jeremymanning.md b/problems/2022/jeremymanning.md new file mode 100644 index 0000000..d67c2d4 --- /dev/null +++ b/problems/2022/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 2022: Convert 1D Array Into 2D Array](https://leetcode.com/problems/convert-1d-array-into-2d-array/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 66bae817cc25c676234e5fa318259273b9cb0ad2 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Sat, 31 Aug 2024 21:51:29 -0400 Subject: [PATCH 054/573] My solution to 2022 --- problems/2022/jeremymanning.md | 37 ++++++++++++++++++++++++++++++++-- 1 file changed, 35 insertions(+), 2 deletions(-) diff --git a/problems/2022/jeremymanning.md b/problems/2022/jeremymanning.md index d67c2d4..6eb9183 100644 --- a/problems/2022/jeremymanning.md +++ b/problems/2022/jeremymanning.md @@ -1,11 +1,44 @@ # [Problem 2022: Convert 1D Array Into 2D Array](https://leetcode.com/problems/convert-1d-array-into-2d-array/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- A nice and easy one +- There are two clear approaches: + - We could build up the 2D array in a for loop + - Or we could use a list comprehension to build it in a single step +- I'll go with the list comprehension approach, since I think we can do it as a one liner (plus a check that `m * n == len(original)`) ## Refining the problem, round 2 thoughts +- Assuming the dimensions work out, I think we can just return `[original[x:(x + n)] for x in range(0, len(original), n)]` ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def construct2DArray(self, original: List[int], m: int, n: int) -> List[List[int]]: + if m * n == len(original): + return [original[x:(x + n)] for x in range(0, len(original), n)] + else: + return [] ``` +- Given test cases pass +- Submitting... + +![Screenshot 2024-08-31 at 9 48 44 PM](https://github.com/user-attachments/assets/f1d0b5ee-380f-4e7e-84f0-33e67ca02af5) + +- Solved! +- Out of curiousity, what if I change the list comprehension to a generator? + +```python +class Solution: + def construct2DArray(self, original: List[int], m: int, n: int) -> List[List[int]]: + if m * n == len(original): + return (original[x:(x + n)] for x in range(0, len(original), n)) + else: + return [] +``` + +![Screenshot 2024-08-31 at 9 50 35 PM](https://github.com/user-attachments/assets/e6e9819c-f3e8-4310-b491-953493db8550) + +- Interesting; runtime is slightly worse (though maybe still within the margin of error), but memory is slightly better. + + + From 041e758d74d241f2ba249c6dc9a2ca2276607bc8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 2 Sep 2024 00:29:01 +0000 Subject: [PATCH 055/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 12a0af7..70e90fa 100644 --- a/README.md +++ b/README.md @@ -72,6 +72,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 30, 2024 | [2699](https://leetcode.com/problems/modify-graph-edge-weights/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2699) | 🔴 Hard | | August 31, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | | September 1, 2024 | [2022](https://leetcode.com/problems/convert-1d-array-into-2d-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2022) | 🟢 Easy | +| September 2, 2024 | [1894](https://leetcode.com/problems/find-the-student-that-will-replace-the-chalk/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1894) | 🟡 Medium | # Join our discussion! From 6680e11a6274c91b47867b9a3aaddd92ebeb45b9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 2 Sep 2024 03:02:54 +0000 Subject: [PATCH 056/573] Creating a template for jeremymanning's solution to problem 1894 --- problems/1894/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/1894/jeremymanning.md diff --git a/problems/1894/jeremymanning.md b/problems/1894/jeremymanning.md new file mode 100644 index 0000000..f20cc73 --- /dev/null +++ b/problems/1894/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 1894: Find the Student that Will Replace the Chalk](https://leetcode.com/problems/find-the-student-that-will-replace-the-chalk/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From c9f3f0da9faeacf16f932736d9cee42ae5503941 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Sun, 1 Sep 2024 23:13:17 -0400 Subject: [PATCH 057/573] My solution for 1894 --- problems/1894/jeremymanning.md | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/problems/1894/jeremymanning.md b/problems/1894/jeremymanning.md index f20cc73..cdcf6be 100644 --- a/problems/1894/jeremymanning.md +++ b/problems/1894/jeremymanning.md @@ -1,11 +1,30 @@ # [Problem 1894: Find the Student that Will Replace the Chalk](https://leetcode.com/problems/find-the-student-that-will-replace-the-chalk/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- I think there are basically two steps to this: + - First, skip ahead to the last "cycle" through the students. To do this, we can set `k %= sum(chalk)`. + - Then we just need to loop through students one at a time until the amount of chalk used is greater than `k`. Or we could also just subtract `chalk[i]` as we loop through each student `i`, and then return `i` when `k` dips below 0. This might be slightly better, since it means we can use one fewer variable. ## Refining the problem, round 2 thoughts +- I don't see any obvious edge cases here; I think I'm good to implement this +- Not totally sure why this is a "medium" problem; it seems pretty straightforward. Maybe I'm missing something... ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def chalkReplacer(self, chalk: List[int], k: int) -> int: + k %= sum(chalk) + for i, c in enumerate(chalk): + k -= c + if k < 0: + return i ``` +- Given test cases pass +- I'll make up one test case: + - `chalk = [5,1,5,7,2,34,54,76,1,7,34,25,6,9], k = 1005`: pass +- Submitting... + +![Screenshot 2024-09-01 at 11 11 40 PM](https://github.com/user-attachments/assets/b9528a9b-81cd-4390-b8c7-be727655010b) + +Solved! + From cb96deac114a0a9822bf7f2e48e6a922d05de926 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 3 Sep 2024 00:27:31 +0000 Subject: [PATCH 058/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 70e90fa..6b3e7a4 100644 --- a/README.md +++ b/README.md @@ -73,6 +73,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | August 31, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | | September 1, 2024 | [2022](https://leetcode.com/problems/convert-1d-array-into-2d-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2022) | 🟢 Easy | | September 2, 2024 | [1894](https://leetcode.com/problems/find-the-student-that-will-replace-the-chalk/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1894) | 🟡 Medium | +| September 3, 2024 | [1945](https://leetcode.com/problems/sum-of-digits-of-string-after-convert/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1945) | 🟢 Easy | # Join our discussion! From a238aeb5bc56c4c4c417bfc3d5aa6f59911d3a17 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 3 Sep 2024 00:28:32 +0000 Subject: [PATCH 059/573] Creating a template for jeremymanning's solution to problem 1945 --- problems/1945/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/1945/jeremymanning.md diff --git a/problems/1945/jeremymanning.md b/problems/1945/jeremymanning.md new file mode 100644 index 0000000..0585d16 --- /dev/null +++ b/problems/1945/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 1945: Sum of Digits of String After Convert](https://leetcode.com/problems/sum-of-digits-of-string-after-convert/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 0d6b3bc352c541e5b598b7265f2c40ed20ca56e5 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Mon, 2 Sep 2024 20:42:47 -0400 Subject: [PATCH 060/573] my solution for 1945 --- problems/1945/jeremymanning.md | 34 ++++++++++++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) diff --git a/problems/1945/jeremymanning.md b/problems/1945/jeremymanning.md index 0585d16..74a4b21 100644 --- a/problems/1945/jeremymanning.md +++ b/problems/1945/jeremymanning.md @@ -1,11 +1,41 @@ # [Problem 1945: Sum of Digits of String After Convert](https://leetcode.com/problems/sum-of-digits-of-string-after-convert/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- Another easy one 🥳! +- Let's hard code in the lowercase letters (`letters = 'abcdefghijklmnopqrstuvwxyz'`) +- Then we can make a `letter2num` decoder: `letter2num = {c: str(i + 1) for i, c in enumerate(letters)}` +- Next, we just replace each letter with it's number, stitch it into a string, and convert to an integer: `num = int("".join([letter2num[c] for c in s]))` +- Finally, loop through `k` times to sum the digits: +```python +for _ in range(k): + num = str(sum([int(i) for i in str(num)])) +``` +- And then we just return `int(num)` ## Refining the problem, round 2 thoughts +- There are no tricky edge cases, as far as I can tell; `k` is always at least 1, and the strings aren't super long so we don't need to worry about overflow issues +- Let's try it! + ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def getLucky(self, s: str, k: int) -> int: + letters = 'abcdefghijklmnopqrstuvwxyz' + letter2num = {c: str(i + 1) for i, c in enumerate(letters)} + + num = int("".join([letter2num[c] for c in s])) + for _ in range(k): + num = str(sum([int(i) for i in str(num)])) + + return int(num) ``` +- Given test cases pass +- Let's try some other random ones: + - `s = "asdlkoifhawioefuh", k = 5`: pass + - `s = "dkfjkjdfijshdeweskjhaskljdfhjsldkjf", k = 4`: pass +- I think we're good; submitting... + +![Screenshot 2024-09-02 at 8 41 31 PM](https://github.com/user-attachments/assets/0a1d3f63-c163-4bfb-a8ec-286ee3b9c0cc) + +Solved! From 965d88d7d627f53536d8264df2c09cb64f755d8f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 4 Sep 2024 00:27:57 +0000 Subject: [PATCH 061/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6b3e7a4..7a3ea3f 100644 --- a/README.md +++ b/README.md @@ -74,6 +74,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 1, 2024 | [2022](https://leetcode.com/problems/convert-1d-array-into-2d-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2022) | 🟢 Easy | | September 2, 2024 | [1894](https://leetcode.com/problems/find-the-student-that-will-replace-the-chalk/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1894) | 🟡 Medium | | September 3, 2024 | [1945](https://leetcode.com/problems/sum-of-digits-of-string-after-convert/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1945) | 🟢 Easy | +| September 4, 2024 | [874](https://leetcode.com/problems/walking-robot-simulation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/874) | 🟡 Medium | # Join our discussion! From a697b91635a3a2290451b8f07a93ccc690161acb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 4 Sep 2024 02:51:03 +0000 Subject: [PATCH 062/573] Creating a template for jeremymanning's solution to problem 874 --- problems/874/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/874/jeremymanning.md diff --git a/problems/874/jeremymanning.md b/problems/874/jeremymanning.md new file mode 100644 index 0000000..3395200 --- /dev/null +++ b/problems/874/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 874: Walking Robot Simulation](https://leetcode.com/problems/walking-robot-simulation/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From beb46a4f89bb7f2a2e12c787357abb039b78142e Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Tue, 3 Sep 2024 23:35:45 -0400 Subject: [PATCH 063/573] My solution to 874 --- problems/874/jeremymanning.md | 205 +++++++++++++++++++++++++++++++++- 1 file changed, 203 insertions(+), 2 deletions(-) diff --git a/problems/874/jeremymanning.md b/problems/874/jeremymanning.md index 3395200..72161cc 100644 --- a/problems/874/jeremymanning.md +++ b/problems/874/jeremymanning.md @@ -1,11 +1,212 @@ # [Problem 874: Walking Robot Simulation](https://leetcode.com/problems/walking-robot-simulation/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- I'm thinking we'll want to keep track of the current position and heading +- The position could be represented as two numbers `(x, y)` +- The heading could be represented as two numbers also: + - North: `(0, 1)` + - East: `(1, 0)` + - South: `(0, -1)` + - West: `(-1, 0)` +- So the full position would be: `[(x, y), (a, b)]` +- We'll also need to keep track of the "order" of turning: + - Clockwise/right: north --> east --> south --> west + - Counterclockwise/left: north --> west --> south --> east +- To move forward `i` units (assuming no obstables), we can update the new position to `[(x + i * a, y + i * b), (a, b)]` +- If there are obstacles, things could get messy-- every time we move (but not when we turn), we'll need to check if we've hit *any* obstacle + - I'm not sure how to get away from having to do this... + - We'll need to check if the *next* move will result in a collision (and if so, we don't make that move) + - This also, I think tells us what to do with the "there can be an obstacle in [0, 0]" note-- I initially thought it might cause the robot to get stuck at `(0, 0)`. But actually, maybe we can just treat that like any other obstacle. Note: we'll need to check this special case when testing, because the instructions are a little ambiguous. +- Finally, the squared distance is easy to compute-- it's just `x ** 2 + y ** 2`, since we always start at the origin. Any time we move, we'll need to compare the current distance with the current max (intialized to 0). Then at th eend we just return `max_distance`. ## Refining the problem, round 2 thoughts +- We should initialize `position = [(0, 0), (0, 1)]`. Or actually, we could just represent the position as `[x, y, a, b]` instead of using nested lists-- so let's intialize `position = [0, 0, 0, 1]` +- Turning left (`next_command == -2`) and right (`next_command == -1`): +```python +def turn_left(pos): + x, y, a, b = pos + if a == 0: # currently either north or south + if b == 1: # north + a, b = -1, 0 + else: # south + a, b = 1, 0 + else: # currently either east or west + if a == 1: # east + a, b = 0, 1 + else: # west + a, b = 0, -1 + return x, y, a, b + +def turn_right(pos): + x, y, a, b = pos + if a == 0: # currently either north or south + if b == 1: # north + a, b = 1, 0 + else: # south + a, b = -1, 0 + else: # currently either east or west + if a == 1: # east + a, b = 0, -1 + else: # west + a, b = 0, 1 + return x, y, a, b +``` +- To walk forward, we have to both check for obstacles (one step ahead) and update `max_distance` each time `x` or `y` changes. +- First, let's see how we'll check for obstacles: +```python +def collision(x, y): + for xo, yo in obstacles: + if x == xo and y == yo: + return True + return False +``` +- Then we can move as follows (if `next_command >= 1`): +```python +def move(pos, steps, max_distance): + x, y, a, b = pos + for _ in range(steps): + x_next, y_next = x + a, y + b + if collision(x_next, y_next): + break + x, y = x_next, y_next + max_distance = max(max_distance, x ** 2 + y ** 2) + return (x, y, a, b), max_distance +``` +- I think this is everything...let's put it together! ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def robotSim(self, commands: List[int], obstacles: List[List[int]]) -> int: + max_distance = 0 + pos = [0, 0, 0, 1] + + def turn_left(pos): + x, y, a, b = pos + if a == 0: # currently either north or south + if b == 1: # north + a, b = -1, 0 + else: # south + a, b = 1, 0 + else: # currently either east or west + if a == 1: # east + a, b = 0, 1 + else: # west + a, b = 0, -1 + return x, y, a, b + + def turn_right(pos): + x, y, a, b = pos + if a == 0: # currently either north or south + if b == 1: # north + a, b = 1, 0 + else: # south + a, b = -1, 0 + else: # currently either east or west + if a == 1: # east + a, b = 0, -1 + else: # west + a, b = 0, 1 + return x, y, a, b + + def collision(x, y): + for xo, yo in obstacles: + if x == xo and y == yo: + return True + return False + + def move(pos, steps, max_distance): + x, y, a, b = pos + for _ in range(steps): + x_next, y_next = x + a, y + b + if collision(x_next, y_next): + break + x, y = x_next, y_next + max_distance = max(max_distance, x ** 2 + y ** 2) + return (x, y, a, b), max_distance + + for c in commands: + if c == -2: + pos = turn_left(pos) + elif c == -1: + pos = turn_right(pos) + else: + pos, max_distance = move(pos, c, max_distance) + + return max_distance ``` +- Given test cases pass +- Let's try a case where there's an obstacle at 0,0: + - `commands = [5, 6, 7, 2, 7, -1, -2, 5, 6, -2, 3, 5, 7, 9, 1, 1, -1, 2, 3, 4, -2, 5], obstacles = [[0, 0], [5, 2], [-3, -6]]`: pass +- Ok...so I'm pretty sure the algorithm is right. I'm not totally certain that it's efficient enough (so we might time out)...but let's try submitting... + +![Screenshot 2024-09-03 at 11 29 06 PM](https://github.com/user-attachments/assets/0165408c-0186-479e-96b3-39204daeb8d3) + +Hrmph, I was afraid that would happen 😞... + +- One potentially simple fix would be to convert `obstacles` to a `set` instead of a `list`: `obstacles = {(x, y) for x, y in obstacles}` +- Then lookups will be constant time instead of $O(n)$ time for $n$ obstacles-- so we could just use: +```python +class Solution: + def robotSim(self, commands: List[int], obstacles: List[List[int]]) -> int: + max_distance = 0 + obstacles = {(x, y) for x, y in obstacles} + pos = [0, 0, 0, 1] + + def turn_left(pos): + x, y, a, b = pos + if a == 0: # currently either north or south + if b == 1: # north + a, b = -1, 0 + else: # south + a, b = 1, 0 + else: # currently either east or west + if a == 1: # east + a, b = 0, 1 + else: # west + a, b = 0, -1 + return x, y, a, b + + def turn_right(pos): + x, y, a, b = pos + if a == 0: # currently either north or south + if b == 1: # north + a, b = 1, 0 + else: # south + a, b = -1, 0 + else: # currently either east or west + if a == 1: # east + a, b = 0, -1 + else: # west + a, b = 0, 1 + return x, y, a, b + + def collision(x, y): + return (x, y) in obstacles + + def move(pos, steps, max_distance): + x, y, a, b = pos + for _ in range(steps): + x_next, y_next = x + a, y + b + if collision(x_next, y_next): + break + x, y = x_next, y_next + max_distance = max(max_distance, x ** 2 + y ** 2) + return (x, y, a, b), max_distance + + for c in commands: + if c == -2: + pos = turn_left(pos) + elif c == -1: + pos = turn_right(pos) + else: + pos, max_distance = move(pos, c, max_distance) + + return max_distance +``` +- Test cases still pass; let's see if that pushes us far enough over the threshold... + +![Screenshot 2024-09-03 at 11 34 34 PM](https://github.com/user-attachments/assets/55255ae3-6087-4a35-b9e7-186cb2ebbb74) + +Great, solved! + From 7d1a3d79cecb0e616714aee7bc9d8da37125783b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 5 Sep 2024 00:27:55 +0000 Subject: [PATCH 064/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7a3ea3f..a8df7c8 100644 --- a/README.md +++ b/README.md @@ -75,6 +75,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 2, 2024 | [1894](https://leetcode.com/problems/find-the-student-that-will-replace-the-chalk/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1894) | 🟡 Medium | | September 3, 2024 | [1945](https://leetcode.com/problems/sum-of-digits-of-string-after-convert/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1945) | 🟢 Easy | | September 4, 2024 | [874](https://leetcode.com/problems/walking-robot-simulation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/874) | 🟡 Medium | +| September 5, 2024 | [2028](https://leetcode.com/problems/find-missing-observations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2028) | 🟡 Medium | # Join our discussion! From 3269ef204bd561054587ec7d1a0a36ce5f14f21a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 6 Sep 2024 00:27:53 +0000 Subject: [PATCH 065/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a8df7c8..a20f12e 100644 --- a/README.md +++ b/README.md @@ -76,6 +76,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 3, 2024 | [1945](https://leetcode.com/problems/sum-of-digits-of-string-after-convert/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1945) | 🟢 Easy | | September 4, 2024 | [874](https://leetcode.com/problems/walking-robot-simulation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/874) | 🟡 Medium | | September 5, 2024 | [2028](https://leetcode.com/problems/find-missing-observations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2028) | 🟡 Medium | +| September 6, 2024 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | # Join our discussion! From 4b2e266596b65beb20ba70210f798f9bb4a021f6 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 6 Sep 2024 03:16:52 +0000 Subject: [PATCH 066/573] Creating a template for jeremymanning's solution to problem 3217 --- problems/3217/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/3217/jeremymanning.md diff --git a/problems/3217/jeremymanning.md b/problems/3217/jeremymanning.md new file mode 100644 index 0000000..b0a9353 --- /dev/null +++ b/problems/3217/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 3217: Delete Nodes From Linked List Present in Array](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 62ec441fcdba350af0d0fa253474ac838f2e84ac Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Thu, 5 Sep 2024 23:30:46 -0400 Subject: [PATCH 067/573] My solution for 3217 --- problems/3217/jeremymanning.md | 40 ++++++++++++++++++++++++++++++++-- 1 file changed, 38 insertions(+), 2 deletions(-) diff --git a/problems/3217/jeremymanning.md b/problems/3217/jeremymanning.md index b0a9353..8c60353 100644 --- a/problems/3217/jeremymanning.md +++ b/problems/3217/jeremymanning.md @@ -1,11 +1,47 @@ # [Problem 3217: Delete Nodes From Linked List Present in Array](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- Let's start by changing `nums` to a `set` (instead of a `list`) so that we can match each value along the linked list to the values in `nums` in constant time (instead of $O(n)$ time, where $n$ is the length of `nums`) +- I think there are two cases we need to account for: + - While the head is in `nums`, set `head = head.next` + - Next, keep looping through the subsequent nodes: + - If `node.val` is *not* in `nums`, continue to the next node (or return `head` if `node.next` is `None`) + - If `node.val` *is* in `nums`, we need to snip out the current node by setting `prev.next = node.next`. So that means we'll also need to keep track of the previous node we've visited ## Refining the problem, round 2 thoughts +- Since we're guaranteed that at least one node is not in `nums`, we don't have to account for the special case where there is no head to return +- The one sort of "tricky" (if it can be called that) piece is how we keep track of the previous node. I think we can start by setting `prev = head` (once we've skipped ahead to the first node that isn't in `nums`). Then we can start looping through by setting `current = prev.next` and then continue until `current.next` is `None`. +- Let's try it! ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +# Definition for singly-linked list. +# class ListNode: +# def __init__(self, val=0, next=None): +# self.val = val +# self.next = next +class Solution: + def modifiedList(self, nums: List[int], head: Optional[ListNode]) -> Optional[ListNode]: + nums = set(nums) + + while head.val in nums: + head = head.next + + prev = head + current = head.next + while current is not None: + if current.val in nums: + prev.next = current.next + current = current.next + else: + prev, current = current, current.next + + return head ``` +- Given test cases pass +- Off the top of my head I can't think of any particularly interesting edge cases that I'm not accounting for, so I'll just try submitting 🙂 + +![Screenshot 2024-09-05 at 11 28 53 PM](https://github.com/user-attachments/assets/c26d7769-a6ea-4082-ab19-88872ba8a2e5) + +I'll take it! Solved 🎉! + From 7a5265f11099ff758371c954ea3daec064314c75 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 7 Sep 2024 00:27:29 +0000 Subject: [PATCH 068/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a20f12e..b6ca8aa 100644 --- a/README.md +++ b/README.md @@ -77,6 +77,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 4, 2024 | [874](https://leetcode.com/problems/walking-robot-simulation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/874) | 🟡 Medium | | September 5, 2024 | [2028](https://leetcode.com/problems/find-missing-observations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2028) | 🟡 Medium | | September 6, 2024 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | +| September 7, 2024 | [1367](https://leetcode.com/problems/linked-list-in-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1367) | 🟡 Medium | # Join our discussion! From 13b64724c1f58e1488ec620a07c95075d58448d9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 7 Sep 2024 01:37:48 +0000 Subject: [PATCH 069/573] Creating a template for jeremymanning's solution to problem 1367 --- problems/1367/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/1367/jeremymanning.md diff --git a/problems/1367/jeremymanning.md b/problems/1367/jeremymanning.md new file mode 100644 index 0000000..c68ae76 --- /dev/null +++ b/problems/1367/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 1367: Linked List in Binary Tree](https://leetcode.com/problems/linked-list-in-binary-tree/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From d4d46205536708a4199dbe50ed003a6f071bf155 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Fri, 6 Sep 2024 22:02:48 -0400 Subject: [PATCH 070/573] My solution to 1367 --- problems/1367/jeremymanning.md | 53 ++++++++++++++++++++++++++++++++-- 1 file changed, 51 insertions(+), 2 deletions(-) diff --git a/problems/1367/jeremymanning.md b/problems/1367/jeremymanning.md index c68ae76..5fda6b9 100644 --- a/problems/1367/jeremymanning.md +++ b/problems/1367/jeremymanning.md @@ -1,11 +1,60 @@ # [Problem 1367: Linked List in Binary Tree](https://leetcode.com/problems/linked-list-in-binary-tree/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- First we need to find all nodes in the tree whose values match the head of the linked list's value. These are "candidate starts of paths." +- Then, for each candidate: + - Start with the head of the linked list, and the candidate node. If we ever reach a point where the linked list node's `next` value is `None`, return `True`. + - Otherwise, if any of the children of the current binary tree node have the same value as the current linked list's next node, then move along in the linked list to the next node, and move along in the tree to the corresponding child. + - Tricky special case: if *both* children match, then we need to enqueue *both* options. So actually, maybe the queue of possible paths should include touples of the place to start in the linked list and the place to start in the binary tree. That way we can just keep adding possibilities until they're all exhausted. (Or...maybe we should add options in a stack instead of a queue, since that way shorter paths will appear near the end and can be more quickly eliminated?) + - If *neither* of the current binary tree node's children match the next linked list node, continue on to the next path possibility + - If we ever run out of options (stack is empty), return `False` ## Refining the problem, round 2 thoughts +- I think this is a straightforward approach. We can start with a breadth-first search to seed the stack. ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +from collections import deque +# Definition for singly-linked list. +# class ListNode: +# def __init__(self, val=0, next=None): +# self.val = val +# self.next = next +# Definition for a binary tree node. +# class TreeNode: +# def __init__(self, val=0, left=None, right=None): +# self.val = val +# self.left = left +# self.right = right +class Solution: + def isSubPath(self, head: Optional[ListNode], root: Optional[TreeNode]) -> bool: + # first find all possible starts of the tree path, using BFS of the tree + options = [] + queue = deque([root]) + while queue: + node = queue.popleft() + if node is None: + continue + if node.val == head.val: + options.append((node, head)) + queue.extend([node.left, node.right]) + + # now use DFS of all possible options + while options: + next_root, next_head = options.pop() + if next_head.next is None: + return True + if next_root.left is not None and next_root.left.val == next_head.next.val: + options.append((next_root.left, next_head.next)) + if next_root.right is not None and next_root.right.val == next_head.next.val: + options.append((next_root.right, next_head.next)) + + return False ``` +- Given test cases pass +- I'm in a rush tonight, so I'm just going to submit! + +![Screenshot 2024-09-06 at 10 02 01 PM](https://github.com/user-attachments/assets/90897c63-7c1d-4d7b-ab6a-fb98000c62b2) + +Great, it worked! + From 3f93125be01fde7359987d52624f8e2c5d7cab9d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 8 Sep 2024 00:31:18 +0000 Subject: [PATCH 071/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b6ca8aa..0a5c752 100644 --- a/README.md +++ b/README.md @@ -78,6 +78,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 5, 2024 | [2028](https://leetcode.com/problems/find-missing-observations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2028) | 🟡 Medium | | September 6, 2024 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | | September 7, 2024 | [1367](https://leetcode.com/problems/linked-list-in-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1367) | 🟡 Medium | +| September 8, 2024 | [725](https://leetcode.com/problems/split-linked-list-in-parts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/725) | 🟡 Medium | # Join our discussion! From 79bf90eaf804d775d07e2acec636509b5cebcb66 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 8 Sep 2024 01:46:09 +0000 Subject: [PATCH 072/573] Creating a template for jeremymanning's solution to problem 725 --- problems/725/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/725/jeremymanning.md diff --git a/problems/725/jeremymanning.md b/problems/725/jeremymanning.md new file mode 100644 index 0000000..d81568e --- /dev/null +++ b/problems/725/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 725: Split Linked List in Parts](https://leetcode.com/problems/split-linked-list-in-parts/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 459d8c0ba51b6144459312370e0c4aaf802eca8c Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Sat, 7 Sep 2024 22:11:07 -0400 Subject: [PATCH 073/573] My solution for 725 --- problems/725/jeremymanning.md | 58 +++++++++++++++++++++++++++++++++-- 1 file changed, 56 insertions(+), 2 deletions(-) diff --git a/problems/725/jeremymanning.md b/problems/725/jeremymanning.md index d81568e..fc1592b 100644 --- a/problems/725/jeremymanning.md +++ b/problems/725/jeremymanning.md @@ -1,11 +1,65 @@ # [Problem 725: Split Linked List in Parts](https://leetcode.com/problems/split-linked-list-in-parts/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- There are two parts to this problem: figuring out the sizes of each list segment and actually doing the splitting +- Let's consider how to solve each in turn ## Refining the problem, round 2 thoughts +- To figure out the sizes of the segments, I think we can: + - First, figure out how long the list is with an initial pass through the list. Let's say the length is `n`. + - We can then compute a "base" size of each segment as `n // k`. This is the "default" segment length, and it's also the minimum segment lenght. + - But some of the segments might need to be augmented by 1 additional element. The number of segments that need augmenting is `n % k`. We can create an `extra = n % k` variable, and then while `extra > 0` we augment the given segment with an additional element and then decrement `extra`. +- Splitting the segments requires setting the `next` property of the last element of the previous segment to `None` and then appending the first element of the next segment to the to-be-outputted list of segments. +- Note: I'm assuming that the output should be a list of heads of each segment's linked list, as opposed to "regular" (`list`) lists of the values of each segment's nodes +- Assuming that this is the desired output format, I think I'm ready to implement the solution ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +# Definition for singly-linked list. +# class ListNode: +# def __init__(self, val=0, next=None): +# self.val = val +# self.next = next +class Solution: + def splitListToParts(self, head: Optional[ListNode], k: int) -> List[Optional[ListNode]]: + # first compute the length of the list + n = 0 + node = head + while node is not None: + node = node.next + n += 1 + + # now compile the actual segments + base_length = n // k + extras = n % k + + segments = [] + node = head + + for i in range(k): + part_head = node + part_length = base_length + (1 if extras > 0 else 0) + extras -= 1 if extras > 0 else 0 + + # finish off this segment + for j in range(part_length - 1): + if node: + node = node.next + + # tie off the current segment and get ready for the next one + if node: + next_part = node.next + node.next = None + node = next_part + + segments.append(part_head) + + return segments ``` +- Given examples pass +- Submitting... + +![Screenshot 2024-09-07 at 10 10 14 PM](https://github.com/user-attachments/assets/1c36ab06-c7e2-4b34-88f0-278f96c97e2d) + +Solved! + From 8c188d88261742e2776996f8f4a73fa963cdb400 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 9 Sep 2024 00:30:03 +0000 Subject: [PATCH 074/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0a5c752..6d5f0be 100644 --- a/README.md +++ b/README.md @@ -79,6 +79,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 6, 2024 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | | September 7, 2024 | [1367](https://leetcode.com/problems/linked-list-in-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1367) | 🟡 Medium | | September 8, 2024 | [725](https://leetcode.com/problems/split-linked-list-in-parts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/725) | 🟡 Medium | +| September 9, 2024 | [2326](https://leetcode.com/problems/spiral-matrix-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2326) | 🟡 Medium | # Join our discussion! From 5e9564ddb332db94d0d9aa53d342c0fbd46587f9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 9 Sep 2024 03:41:36 +0000 Subject: [PATCH 075/573] Creating a template for jeremymanning's solution to problem 2326 --- problems/2326/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/2326/jeremymanning.md diff --git a/problems/2326/jeremymanning.md b/problems/2326/jeremymanning.md new file mode 100644 index 0000000..c74ed21 --- /dev/null +++ b/problems/2326/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 2326: Spiral Matrix IV](https://leetcode.com/problems/spiral-matrix-iv/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 5697298c7801847edcf2d7b15f5e1063947b058e Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Mon, 9 Sep 2024 00:20:57 -0400 Subject: [PATCH 076/573] My solution to 2326 --- problems/2326/jeremymanning.md | 120 ++++++++++++++++++++++++++++++++- 1 file changed, 118 insertions(+), 2 deletions(-) diff --git a/problems/2326/jeremymanning.md b/problems/2326/jeremymanning.md index c74ed21..30754ad 100644 --- a/problems/2326/jeremymanning.md +++ b/problems/2326/jeremymanning.md @@ -1,11 +1,127 @@ # [Problem 2326: Spiral Matrix IV](https://leetcode.com/problems/spiral-matrix-iv/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- Another linked list problem-- yay 🥳! +- First of all, filling in the "extra" -1s is going to be a pain. So instead of figuring out (directly) which spots are missed, let's just start by initializing a matrix of -1s: `matrix = [[-1] * n for _ in range(m)]` +- Then...there are two ways of filling stuff in. One option is to keep track of the upper/right-most/lower/left-most "bounds" that we've filled in so far, and then keep looping through until we hit one less than the current limits in the current direction (cycling through top-most left to right --> right-most top to bottom --> bottom-most right to left --> left-most bottom to top). Another option would be to cycle through the same order, but instead of explicitly keeping track of the bounds, just stop when we get to a value that's less than 0. This will "work" because the nodes' values are guaranteed to be greater than or equal to 0 (and less than or equal to 1000, but that doesn't matter here). +- So the idea could be something like: + - Start with current position = `matrix[0][0]` and `current_direction = 'right'`. Then initiate `move_right(current_pos)` until either we hit the limits of the matrix along that dimension, or until we encounter a -1, or until we hit the end of the linked list. As we move, we're replacing -1s in the matrix with the values in the linked list, and progressing along the linked list (from node to node). + - The directions go in order (`['right', 'down', 'left', 'up']`) and we'll need functions to move in each direction ## Refining the problem, round 2 thoughts +- Let's think through how to implement "moving"... +- I think (after initializing the `matrix` we'll ultimately return), we should iterate through moves in a `while` loop, like this: +```python +matrix = [[-1] * n for _ in range(m)] +pos = [0, 0] +node = head +while True: + for func in [move_right, move_down, move_left, move_up]: + pos, node = func(pos, node) + if node is None: + return matrix +``` +- Then we just need to implement each of `move_right`, `move_down`, `move_left`, and `move_up`: +```python +def move_right(pos, node): + while node is not None and pos[1] < n and matrix[pos[0]][pos[1]] == -1: + matrix[pos[0]][pos[1]] = node.val + pos[1] += 1 + node = node.next + pos[1] -= 1 # undo last move + pos[0] += 1 # move to next viable position + return pos, node + +def move_down(pos, node): + while node is not None and pos[0] < m and matrix[pos[0]][pos[1]] == -1: + matrix[pos[0]][pos[1]] = node.val + pos[0] += 1 + node = node.next + pos[0] -= 1 # undo last move + pos[1] -= 1 # move to next viable position + return pos, node + +def move_left(pos, node): + while node is not None and pos[1] >= 0 and matrix[pos[0]][pos[1]] == -1: + matrix[pos[0]][pos[1]] = node.val + pos[1] -= 1 + node = node.next + pos[1] += 1 # undo last move + pos[0] -= 1 # move to next viable position + return pos, node + +def move_up(pos, node): + while node is not None and pos[0] >= 0 and matrix[pos[0]][pos[1]] == -1: + matrix[pos[0]][pos[1]] = node.val + pos[0] -= 1 + node = node.next + pos[0] += 1 # undo last move + pos[1] += 1 # move to next viable position + return pos, node +``` +- Ok...let's put it all together! ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +# Definition for singly-linked list. +# class ListNode: +# def __init__(self, val=0, next=None): +# self.val = val +# self.next = next +class Solution: + def spiralMatrix(self, m: int, n: int, head: Optional[ListNode]) -> List[List[int]]: + def move_right(pos, node): + while node is not None and pos[1] < n and matrix[pos[0]][pos[1]] == -1: + matrix[pos[0]][pos[1]] = node.val + pos[1] += 1 + node = node.next + pos[1] -= 1 # undo last move + pos[0] += 1 # move to next viable position + return pos, node + + def move_down(pos, node): + while node is not None and pos[0] < m and matrix[pos[0]][pos[1]] == -1: + matrix[pos[0]][pos[1]] = node.val + pos[0] += 1 + node = node.next + pos[0] -= 1 # undo last move + pos[1] -= 1 # move to next viable position + return pos, node + + def move_left(pos, node): + while node is not None and pos[1] >= 0 and matrix[pos[0]][pos[1]] == -1: + matrix[pos[0]][pos[1]] = node.val + pos[1] -= 1 + node = node.next + pos[1] += 1 # undo last move + pos[0] -= 1 # move to next viable position + return pos, node + + def move_up(pos, node): + while node is not None and pos[0] >= 0 and matrix[pos[0]][pos[1]] == -1: + matrix[pos[0]][pos[1]] = node.val + pos[0] -= 1 + node = node.next + pos[0] += 1 # undo last move + pos[1] += 1 # move to next viable position + return pos, node + + matrix = [[-1] * n for _ in range(m)] + pos = [0, 0] + node = head + while True: + for func in [move_right, move_down, move_left, move_up]: + pos, node = func(pos, node) + if node is None: + return matrix ``` +- Given test cases pass +- Let's test some edge cases: + - Filling in every position in the matrix: + - `m = 4, n = 5, head = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]`: pass + - Just a single node, $1 \times 1$ matrix: `m = 1, n = 1, head = [1]`: pass +- Ok, ready to submit! + +![Screenshot 2024-09-09 at 12 19 00 AM](https://github.com/user-attachments/assets/bd7dd57e-9817-42c1-bb96-114c383132f5) + +Solved! From d7d11382de9c803cc27d30839940997efcde92ac Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 10 Sep 2024 00:28:24 +0000 Subject: [PATCH 077/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6d5f0be..e26da27 100644 --- a/README.md +++ b/README.md @@ -80,6 +80,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 7, 2024 | [1367](https://leetcode.com/problems/linked-list-in-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1367) | 🟡 Medium | | September 8, 2024 | [725](https://leetcode.com/problems/split-linked-list-in-parts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/725) | 🟡 Medium | | September 9, 2024 | [2326](https://leetcode.com/problems/spiral-matrix-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2326) | 🟡 Medium | +| September 10, 2024 | [2807](https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2807) | 🟡 Medium | # Join our discussion! From a727f50667683c2a5611a45da4481dac67701123 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 10 Sep 2024 02:09:25 +0000 Subject: [PATCH 078/573] Creating a template for jeremymanning's solution to problem 2807 --- problems/2807/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/2807/jeremymanning.md diff --git a/problems/2807/jeremymanning.md b/problems/2807/jeremymanning.md new file mode 100644 index 0000000..094c33a --- /dev/null +++ b/problems/2807/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 2807: Insert Greatest Common Divisors in Linked List](https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 11bc3fbc1d58dea955c554ee592186c234e9abf5 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Mon, 9 Sep 2024 22:20:43 -0400 Subject: [PATCH 079/573] My solution for 2807 --- problems/2807/jeremymanning.md | 38 ++++++++++++++++++++++++++++++++-- 1 file changed, 36 insertions(+), 2 deletions(-) diff --git a/problems/2807/jeremymanning.md b/problems/2807/jeremymanning.md index 094c33a..fe6f8eb 100644 --- a/problems/2807/jeremymanning.md +++ b/problems/2807/jeremymanning.md @@ -1,11 +1,45 @@ # [Problem 2807: Insert Greatest Common Divisors in Linked List](https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- Woohoo, _another_ linked list problem 🥳! Maybe this is linked list month? +- There are two pieces to this problem: + - First, computing greatest common divisors. This is easy-- we can just use the built-in `math.gcd` function. + - Note: there's probably a faster way to compute the GCD when the "factors" are repeated. E.g., if we have a list `a --> b --> c` then we end up computing `b`'s factors for `math.gcd(a, b)` *and* `math.gcd(b, c)`. We could optimize the process by just computing the factors once, and then storing them in a hash table for the next time they're reused. This would increase the memory requirement, but would improve the time. Nevertheless, I'm going to stick with `math.gcd` (despite this inefficiency); I'm choosing simplicity of the implementation over "optimality," given the constraints of the problem (we're not dealing with any _super_ long lists, for example). + - Second, inserting new nodes. To do that we need to: + - Create a new `ListNode` + - Set its value of the greatest common divisor of the previous/next nodes + - Set it's `next` attribute to `previous.next` + - Set the `previous.next` to the new node ## Refining the problem, round 2 thoughts +- The only "tricky" (?) part is keeping track of the "previous" node. But that's just a bookkeeping thing. +- Let's put everything together ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +import math + +# Definition for singly-linked list. +# class ListNode: +# def __init__(self, val=0, next=None): +# self.val = val +# self.next = next +class Solution: + def insertGreatestCommonDivisors(self, head: Optional[ListNode]) -> Optional[ListNode]: + prev = head + node = head.next + while node is not None: + gcd = math.gcd(prev.val, node.val) + x = ListNode(val=gcd, next=node) + prev.next = x + + prev = node + node = node.next + return head ``` +- Given test cases pass +- I can't think of any useful edge cases beyond what's already in the given examples (e.g., just having a single node), so let's submit! + +![Screenshot 2024-09-09 at 10 20 05 PM](https://github.com/user-attachments/assets/0759659e-9cbf-45ff-ae30-377700e139d4) + +Solved! From e06f5c9174dfea858ac8f7e267293a2b13946ccd Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 11 Sep 2024 00:27:54 +0000 Subject: [PATCH 080/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e26da27..a35c8af 100644 --- a/README.md +++ b/README.md @@ -81,6 +81,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 8, 2024 | [725](https://leetcode.com/problems/split-linked-list-in-parts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/725) | 🟡 Medium | | September 9, 2024 | [2326](https://leetcode.com/problems/spiral-matrix-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2326) | 🟡 Medium | | September 10, 2024 | [2807](https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2807) | 🟡 Medium | +| September 11, 2024 | [2220](https://leetcode.com/problems/minimum-bit-flips-to-convert-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2220) | 🟢 Easy | # Join our discussion! From 16bc9105b6b71ab628a3bf0e8ef81491ecd20f97 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 11 Sep 2024 03:11:37 +0000 Subject: [PATCH 081/573] Creating a template for jeremymanning's solution to problem 2220 --- problems/2220/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/2220/jeremymanning.md diff --git a/problems/2220/jeremymanning.md b/problems/2220/jeremymanning.md new file mode 100644 index 0000000..551d48a --- /dev/null +++ b/problems/2220/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 2220: Minimum Bit Flips to Convert Number](https://leetcode.com/problems/minimum-bit-flips-to-convert-number/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 376b0505c653567cbe4d7c5900c1a351749509b7 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Tue, 10 Sep 2024 23:20:16 -0400 Subject: [PATCH 082/573] My solution to 2220 --- problems/2220/jeremymanning.md | 30 ++++++++++++++++++++++++++++-- 1 file changed, 28 insertions(+), 2 deletions(-) diff --git a/problems/2220/jeremymanning.md b/problems/2220/jeremymanning.md index 551d48a..1cadc42 100644 --- a/problems/2220/jeremymanning.md +++ b/problems/2220/jeremymanning.md @@ -1,11 +1,37 @@ # [Problem 2220: Minimum Bit Flips to Convert Number](https://leetcode.com/problems/minimum-bit-flips-to-convert-number/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- First we need to convert each number to its binary representation. We can do that using `bin(x)[2:]` +- Next, we need to append leading 0s as needed. We need to append `abs(len(start) - len(goal))` leading 0s to whichever (of `start` or `goal`) has a shorter binary representation +- Finally, now that the two representations have the same length, we can just loop through bit by bit and count up the number of mismatches ## Refining the problem, round 2 thoughts +- Nothing too complex here; let's implement it! ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def minBitFlips(self, start: int, goal: int) -> int: + start = bin(start)[2:] + goal = bin(goal)[2:] + + leading_zeros = ''.join('0' * abs(len(start) - len(goal))) + if len(start) < len(goal): + start = leading_zeros + start + else: + goal = leading_zeros + goal + + flips = 0 + for i, j in zip(start, goal): + if i != j: + flips += 1 + return flips ``` +- Given test cases pass +- Submitting... + +![Screenshot 2024-09-10 at 11 18 01 PM](https://github.com/user-attachments/assets/1b2f904a-897c-4df4-8563-33cc785bb26b) + +Solved! Easy peasy lemon squeezy! 🍋 + + From 0e31cc7ebfed5eb0e1da35487627ac2ff9094781 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 12 Sep 2024 00:28:24 +0000 Subject: [PATCH 083/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a35c8af..19f9b7f 100644 --- a/README.md +++ b/README.md @@ -82,6 +82,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 9, 2024 | [2326](https://leetcode.com/problems/spiral-matrix-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2326) | 🟡 Medium | | September 10, 2024 | [2807](https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2807) | 🟡 Medium | | September 11, 2024 | [2220](https://leetcode.com/problems/minimum-bit-flips-to-convert-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2220) | 🟢 Easy | +| September 12, 2024 | [1684](https://leetcode.com/problems/count-the-number-of-consistent-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1684) | 🟢 Easy | # Join our discussion! From db279743ee95f544e618499b323d45396a8352a8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 12 Sep 2024 02:04:52 +0000 Subject: [PATCH 084/573] Creating a template for jeremymanning's solution to problem 1684 --- problems/1684/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/1684/jeremymanning.md diff --git a/problems/1684/jeremymanning.md b/problems/1684/jeremymanning.md new file mode 100644 index 0000000..f27f577 --- /dev/null +++ b/problems/1684/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 1684: Count the Number of Consistent Strings](https://leetcode.com/problems/count-the-number-of-consistent-strings/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 73550670c4657d3d34d77a56925a8aa17750cfb3 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Wed, 11 Sep 2024 22:15:31 -0400 Subject: [PATCH 085/573] My solution to 1684 --- problems/1684/jeremymanning.md | 55 ++++++++++++++++++++++++++++++++-- 1 file changed, 53 insertions(+), 2 deletions(-) diff --git a/problems/1684/jeremymanning.md b/problems/1684/jeremymanning.md index f27f577..4256f9e 100644 --- a/problems/1684/jeremymanning.md +++ b/problems/1684/jeremymanning.md @@ -1,11 +1,62 @@ # [Problem 1684: Count the Number of Consistent Strings](https://leetcode.com/problems/count-the-number-of-consistent-strings/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- The "trivial" solution would be: `sum([all([c in allowed for c in word]) for word in words])` +- However, we can do a little better using sets, which have constant lookup time +- If the intersection between `set(allowed)` and `set(word)` has the same length as `set(word)`, then we know that `word` is consistent. Particularly if there are repeated characters, set intersection should be faster than `all([c in allowed for c in word])` ## Refining the problem, round 2 thoughts +- Here's a faster approach (I think): +```python +count = 0 +allowed = set(allowed) +for word in words: + word = set(word) + count += len(allowed.intersection(word)) == len(word) +return count +``` +- Let's try it... ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def countConsistentStrings(self, allowed: str, words: List[str]) -> int: + count = 0 + allowed = set(allowed) + for word in words: + word = set(word) + count += len(allowed.intersection(word)) == len(word) + return count ``` +- All given test cases pass +- Submitting... + +![Screenshot 2024-09-11 at 10 10 52 PM](https://github.com/user-attachments/assets/532fa423-d8b9-4657-8f84-d8fc27c9930d) + +Solved! Although...I'm a little surpised it's so slow...what about the "trivial" version? + +```python +class Solution: + def countConsistentStrings(self, allowed: str, words: List[str]) -> int: + return sum([all([c in allowed for c in word]) for word in words]) +``` + +![Screenshot 2024-09-11 at 10 12 19 PM](https://github.com/user-attachments/assets/c2834f6c-4500-4ff8-a8e3-54c7f3c126ac) + +Huh...actually, that's faster!? 🤷 Maybe it's because `all` returns `False` at the very first match. What if we change `allowed` to a `set`? + +```python +class Solution: + def countConsistentStrings(self, allowed: str, words: List[str]) -> int: + allowed = set(allowed) + return sum([all([c in allowed for c in word]) for word in words]) +``` + +![Screenshot 2024-09-11 at 10 14 05 PM](https://github.com/user-attachments/assets/1cd3a44e-20c1-446c-8a21-16c6dfdfff44) + +Ok, maybe a tiny speed up... + +In any case, another one completed! 🥳 + + + From 24fccc0438d524cf5b191bf9e16c4ab0368df4b8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 13 Sep 2024 00:28:03 +0000 Subject: [PATCH 086/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 19f9b7f..7e17bba 100644 --- a/README.md +++ b/README.md @@ -83,6 +83,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 10, 2024 | [2807](https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2807) | 🟡 Medium | | September 11, 2024 | [2220](https://leetcode.com/problems/minimum-bit-flips-to-convert-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2220) | 🟢 Easy | | September 12, 2024 | [1684](https://leetcode.com/problems/count-the-number-of-consistent-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1684) | 🟢 Easy | +| September 13, 2024 | [1310](https://leetcode.com/problems/xor-queries-of-a-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1310) | 🟡 Medium | # Join our discussion! From f6732ea28609a8a5533a48b7629d37cd5dc09c2e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 13 Sep 2024 19:37:12 +0000 Subject: [PATCH 087/573] Creating a template for jeremymanning's solution to problem 1310 --- problems/1310/jeremymanning.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 problems/1310/jeremymanning.md diff --git a/problems/1310/jeremymanning.md b/problems/1310/jeremymanning.md new file mode 100644 index 0000000..1d9dfed --- /dev/null +++ b/problems/1310/jeremymanning.md @@ -0,0 +1,11 @@ +# [Problem 1310: XOR Queries of a Subarray](https://leetcode.com/problems/xor-queries-of-a-subarray/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) + +## Refining the problem, round 2 thoughts + +## Attempted solution(s) +```python +class Solution: # paste your code here! + ... +``` From 89b252414b2d227d2ae3a17a280aa52a8af2bd8f Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Fri, 13 Sep 2024 15:54:11 -0400 Subject: [PATCH 088/573] My solution to 1310 --- problems/1310/jeremymanning.md | 54 ++++++++++++++++++++++++++++++++-- 1 file changed, 52 insertions(+), 2 deletions(-) diff --git a/problems/1310/jeremymanning.md b/problems/1310/jeremymanning.md index 1d9dfed..e9b7cf5 100644 --- a/problems/1310/jeremymanning.md +++ b/problems/1310/jeremymanning.md @@ -1,11 +1,61 @@ # [Problem 1310: XOR Queries of a Subarray](https://leetcode.com/problems/xor-queries-of-a-subarray/description/?envType=daily-question) ## Initial thoughts (stream-of-consciousness) +- There might be an "efficient" way to do this, but I'm just going to compute this manually +- For each query (`[left, right]`), we can loop through from `left` to `right`, taking the XOR of the result plus the next element each time +- Once we reach `right`, we can append the result to the `answer` list ## Refining the problem, round 2 thoughts +- I think this is straightforward...the potential catch is that we might run out of time +- Maybe there's a way to re-use computations...but let's try the easy version first ## Attempted solution(s) ```python -class Solution: # paste your code here! - ... +class Solution: + def xorQueries(self, arr: List[int], queries: List[List[int]]) -> List[int]: + answers = [] + for left, right in queries: + x = arr[left] + for i in range(left + 1, right + 1): + x ^= arr[i] + answers.append(x) + return answers ``` +- Given test cases pass +- Let's try submitting + +![Screenshot 2024-09-13 at 3 42 14 PM](https://github.com/user-attachments/assets/6fdca782-a782-47ec-9501-d03202fbfbc0) + +Hrmph, time limit exceeded. Bummer. + +## More brainstorming +- Sadly I think we'll need to do something more efficient that enables us to re-use computations +- Let's see...the way to do this is usually to think about fundamental properties of the main operation/function, and see if anything can be exploited. What do we know about XORs? + - We know XOR is associative-- e.g., A XOR (B XOR C) is the same as (A XOR B) XOR C + - We know XOR of A with itself is 0 + - We know XOR of A with 0 is A + - So... +- Maybe we can compute the "cumulative XOR" up to each index, `i` +- Then the query answer would just be XOR(right) XOR XOR(left - 1) -- i.e., the XOR of everything up to `right`, but then XORing out everything before `left` +- We can compute the initial cumulative pass through in $O(n)$ time (where $n$ is the length of `arr`) +- The time to compute every query is constant (just a single XOR operation), so the total time is $O(n + q)$ where $n$ is the length of the array and $q$ is the number of queries. But really this is just $O(max(n, q))$. +- Anyways...let's try it! +```python +class Solution: + def xorQueries(self, arr: List[int], queries: List[List[int]]) -> List[int]: + cumulative_xor = [0] * (len(arr) + 1) + for i in range(1, len(arr) + 1): + cumulative_xor[i] = cumulative_xor[i - 1] ^ arr[i - 1] + + answers = [] + for left, right in queries: + answers.append(cumulative_xor[right + 1] ^ cumulative_xor[left]) + + return answers +``` +- Given test cases (still) pass +- Submitting... + +![Screenshot 2024-09-13 at 3 53 49 PM](https://github.com/user-attachments/assets/7204f56c-02ce-4f46-9156-bff544da656b) + +Solved! From 8a2f641e2930fcfb86303631e6f59c8d79537114 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 14 Sep 2024 00:27:46 +0000 Subject: [PATCH 089/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7e17bba..2f77fb1 100644 --- a/README.md +++ b/README.md @@ -84,6 +84,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 11, 2024 | [2220](https://leetcode.com/problems/minimum-bit-flips-to-convert-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2220) | 🟢 Easy | | September 12, 2024 | [1684](https://leetcode.com/problems/count-the-number-of-consistent-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1684) | 🟢 Easy | | September 13, 2024 | [1310](https://leetcode.com/problems/xor-queries-of-a-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1310) | 🟡 Medium | +| September 14, 2024 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | # Join our discussion! From f519db955939337143f1d533e07e99b7f2bbd437 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 15 Sep 2024 00:32:13 +0000 Subject: [PATCH 090/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2f77fb1..da9a00c 100644 --- a/README.md +++ b/README.md @@ -85,6 +85,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 12, 2024 | [1684](https://leetcode.com/problems/count-the-number-of-consistent-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1684) | 🟢 Easy | | September 13, 2024 | [1310](https://leetcode.com/problems/xor-queries-of-a-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1310) | 🟡 Medium | | September 14, 2024 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | +| September 15, 2024 | [1371](https://leetcode.com/problems/find-the-longest-substring-containing-vowels-in-even-counts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1371) | 🟡 Medium | # Join our discussion! From 036473be994842059edf4a63ee4716ee219cb697 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 16 Sep 2024 00:30:19 +0000 Subject: [PATCH 091/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index da9a00c..d612543 100644 --- a/README.md +++ b/README.md @@ -86,6 +86,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 13, 2024 | [1310](https://leetcode.com/problems/xor-queries-of-a-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1310) | 🟡 Medium | | September 14, 2024 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | | September 15, 2024 | [1371](https://leetcode.com/problems/find-the-longest-substring-containing-vowels-in-even-counts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1371) | 🟡 Medium | +| September 16, 2024 | [539](https://leetcode.com/problems/minimum-time-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/539) | 🟡 Medium | # Join our discussion! From 1e18535ebfcf7a30cd69e5e45a749cc7998743ee Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 17 Sep 2024 00:24:13 +0000 Subject: [PATCH 092/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d612543..269ed1e 100644 --- a/README.md +++ b/README.md @@ -87,6 +87,7 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob | September 14, 2024 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | | September 15, 2024 | [1371](https://leetcode.com/problems/find-the-longest-substring-containing-vowels-in-even-counts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1371) | 🟡 Medium | | September 16, 2024 | [539](https://leetcode.com/problems/minimum-time-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/539) | 🟡 Medium | +| September 17, 2024 | [884](https://leetcode.com/problems/uncommon-words-from-two-sentences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/884) | 🟢 Easy | # Join our discussion! From adbf2099fcf02a314e79b8ad0cf4570d3c9d8819 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Mon, 16 Sep 2024 22:05:21 -0400 Subject: [PATCH 093/573] pausing our leetcode adventures... --- README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/README.md b/README.md index 269ed1e..00f8b4c 100644 --- a/README.md +++ b/README.md @@ -4,6 +4,8 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob +_**Note:** Our group is currently taking a break from grinding leetcode. The table below will continue to update automatically, but newer problems likey won't have their solutions provided. Pull requests will still be supported and reviewed if others would like to contribute solutions._ + # Problems we've attempted so far: From 4bfa65c04ab7167bcae3b70ec18dbb6cf93147bd Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 18 Sep 2024 00:28:17 +0000 Subject: [PATCH 094/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 00f8b4c..8fc2b83 100644 --- a/README.md +++ b/README.md @@ -90,6 +90,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 15, 2024 | [1371](https://leetcode.com/problems/find-the-longest-substring-containing-vowels-in-even-counts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1371) | 🟡 Medium | | September 16, 2024 | [539](https://leetcode.com/problems/minimum-time-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/539) | 🟡 Medium | | September 17, 2024 | [884](https://leetcode.com/problems/uncommon-words-from-two-sentences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/884) | 🟢 Easy | +| September 18, 2024 | [179](https://leetcode.com/problems/largest-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/179) | 🟡 Medium | # Join our discussion! From 85431d46dcd75f70f19971ff88397280b55fc4bc Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 19 Sep 2024 00:28:42 +0000 Subject: [PATCH 095/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8fc2b83..876be4e 100644 --- a/README.md +++ b/README.md @@ -91,6 +91,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 16, 2024 | [539](https://leetcode.com/problems/minimum-time-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/539) | 🟡 Medium | | September 17, 2024 | [884](https://leetcode.com/problems/uncommon-words-from-two-sentences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/884) | 🟢 Easy | | September 18, 2024 | [179](https://leetcode.com/problems/largest-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/179) | 🟡 Medium | +| September 19, 2024 | [241](https://leetcode.com/problems/different-ways-to-add-parentheses/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/241) | 🟡 Medium | # Join our discussion! From dffaade018514d2af32542603effdeaf6403aa47 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 20 Sep 2024 00:28:46 +0000 Subject: [PATCH 096/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 876be4e..c0eeee4 100644 --- a/README.md +++ b/README.md @@ -92,6 +92,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 17, 2024 | [884](https://leetcode.com/problems/uncommon-words-from-two-sentences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/884) | 🟢 Easy | | September 18, 2024 | [179](https://leetcode.com/problems/largest-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/179) | 🟡 Medium | | September 19, 2024 | [241](https://leetcode.com/problems/different-ways-to-add-parentheses/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/241) | 🟡 Medium | +| September 20, 2024 | [214](https://leetcode.com/problems/shortest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/214) | 🔴 Hard | # Join our discussion! From 09aa2f517b5c9c53bf2bad6097163041ded60bbc Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 21 Sep 2024 00:28:08 +0000 Subject: [PATCH 097/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c0eeee4..e9b7f68 100644 --- a/README.md +++ b/README.md @@ -93,6 +93,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 18, 2024 | [179](https://leetcode.com/problems/largest-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/179) | 🟡 Medium | | September 19, 2024 | [241](https://leetcode.com/problems/different-ways-to-add-parentheses/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/241) | 🟡 Medium | | September 20, 2024 | [214](https://leetcode.com/problems/shortest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/214) | 🔴 Hard | +| September 21, 2024 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | # Join our discussion! From bb128091c78803cbab3ec3ab0387a45e078eef6f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 22 Sep 2024 00:32:15 +0000 Subject: [PATCH 098/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e9b7f68..6285b37 100644 --- a/README.md +++ b/README.md @@ -94,6 +94,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 19, 2024 | [241](https://leetcode.com/problems/different-ways-to-add-parentheses/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/241) | 🟡 Medium | | September 20, 2024 | [214](https://leetcode.com/problems/shortest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/214) | 🔴 Hard | | September 21, 2024 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | +| September 22, 2024 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | # Join our discussion! From 000d1eb94e31425e2b3b28934488781102b5ae33 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 23 Sep 2024 00:30:23 +0000 Subject: [PATCH 099/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6285b37..6b75a78 100644 --- a/README.md +++ b/README.md @@ -95,6 +95,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 20, 2024 | [214](https://leetcode.com/problems/shortest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/214) | 🔴 Hard | | September 21, 2024 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | | September 22, 2024 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | +| September 23, 2024 | [2707](https://leetcode.com/problems/extra-characters-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2707) | 🟡 Medium | # Join our discussion! From 53c74b2bda340f8eb4580e40edd385388855452b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 24 Sep 2024 00:29:29 +0000 Subject: [PATCH 100/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6b75a78..ce51db4 100644 --- a/README.md +++ b/README.md @@ -96,6 +96,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 21, 2024 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | | September 22, 2024 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | | September 23, 2024 | [2707](https://leetcode.com/problems/extra-characters-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2707) | 🟡 Medium | +| September 24, 2024 | [3043](https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3043) | 🟡 Medium | # Join our discussion! From fa400aa3ae3b6d97c8eab312aa9b57cce161e0ca Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 25 Sep 2024 00:29:50 +0000 Subject: [PATCH 101/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ce51db4..b5ae269 100644 --- a/README.md +++ b/README.md @@ -97,6 +97,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 22, 2024 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | | September 23, 2024 | [2707](https://leetcode.com/problems/extra-characters-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2707) | 🟡 Medium | | September 24, 2024 | [3043](https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3043) | 🟡 Medium | +| September 25, 2024 | [2416](https://leetcode.com/problems/sum-of-prefix-scores-of-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2416) | 🔴 Hard | # Join our discussion! From ce42b74d6477d0a60418e8086de512bec330f6be Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 26 Sep 2024 00:29:05 +0000 Subject: [PATCH 102/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b5ae269..012e905 100644 --- a/README.md +++ b/README.md @@ -98,6 +98,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 23, 2024 | [2707](https://leetcode.com/problems/extra-characters-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2707) | 🟡 Medium | | September 24, 2024 | [3043](https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3043) | 🟡 Medium | | September 25, 2024 | [2416](https://leetcode.com/problems/sum-of-prefix-scores-of-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2416) | 🔴 Hard | +| September 26, 2024 | [729](https://leetcode.com/problems/my-calendar-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/729) | 🟡 Medium | # Join our discussion! From 08293cfac771c633cfdf298110097cb27d71de0e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 27 Sep 2024 00:29:36 +0000 Subject: [PATCH 103/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 012e905..8d09a1c 100644 --- a/README.md +++ b/README.md @@ -99,6 +99,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 24, 2024 | [3043](https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3043) | 🟡 Medium | | September 25, 2024 | [2416](https://leetcode.com/problems/sum-of-prefix-scores-of-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2416) | 🔴 Hard | | September 26, 2024 | [729](https://leetcode.com/problems/my-calendar-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/729) | 🟡 Medium | +| September 27, 2024 | [731](https://leetcode.com/problems/my-calendar-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/731) | 🟡 Medium | # Join our discussion! From a0804b2e66891cface6571558252881411b6c778 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 28 Sep 2024 00:29:36 +0000 Subject: [PATCH 104/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8d09a1c..60356bd 100644 --- a/README.md +++ b/README.md @@ -100,6 +100,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 25, 2024 | [2416](https://leetcode.com/problems/sum-of-prefix-scores-of-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2416) | 🔴 Hard | | September 26, 2024 | [729](https://leetcode.com/problems/my-calendar-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/729) | 🟡 Medium | | September 27, 2024 | [731](https://leetcode.com/problems/my-calendar-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/731) | 🟡 Medium | +| September 28, 2024 | [641](https://leetcode.com/problems/design-circular-deque/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/641) | 🟡 Medium | # Join our discussion! From 31b97bcfdf7ca32a9e71f7bccc25ac0f2180f0af Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 29 Sep 2024 00:33:06 +0000 Subject: [PATCH 105/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 60356bd..910c914 100644 --- a/README.md +++ b/README.md @@ -101,6 +101,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 26, 2024 | [729](https://leetcode.com/problems/my-calendar-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/729) | 🟡 Medium | | September 27, 2024 | [731](https://leetcode.com/problems/my-calendar-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/731) | 🟡 Medium | | September 28, 2024 | [641](https://leetcode.com/problems/design-circular-deque/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/641) | 🟡 Medium | +| September 29, 2024 | [432](https://leetcode.com/problems/all-oone-data-structure/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/432) | 🔴 Hard | # Join our discussion! From 8a67b60fd1c7035ce44f2e49d8fd1759b48f4523 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 30 Sep 2024 00:31:13 +0000 Subject: [PATCH 106/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 910c914..b538d65 100644 --- a/README.md +++ b/README.md @@ -102,6 +102,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 27, 2024 | [731](https://leetcode.com/problems/my-calendar-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/731) | 🟡 Medium | | September 28, 2024 | [641](https://leetcode.com/problems/design-circular-deque/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/641) | 🟡 Medium | | September 29, 2024 | [432](https://leetcode.com/problems/all-oone-data-structure/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/432) | 🔴 Hard | +| September 30, 2024 | [1381](https://leetcode.com/problems/design-a-stack-with-increment-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1381) | 🟡 Medium | # Join our discussion! From 3e0e4c598b7b2aaaeffddcd389f896315676b446 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 1 Oct 2024 00:33:24 +0000 Subject: [PATCH 107/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b538d65..144b1d0 100644 --- a/README.md +++ b/README.md @@ -103,6 +103,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 28, 2024 | [641](https://leetcode.com/problems/design-circular-deque/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/641) | 🟡 Medium | | September 29, 2024 | [432](https://leetcode.com/problems/all-oone-data-structure/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/432) | 🔴 Hard | | September 30, 2024 | [1381](https://leetcode.com/problems/design-a-stack-with-increment-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1381) | 🟡 Medium | +| October 1, 2024 | [1497](https://leetcode.com/problems/check-if-array-pairs-are-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1497) | 🟡 Medium | # Join our discussion! From ceaa4cf0dcf5f0b20236720e116cc47f679104c6 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 2 Oct 2024 00:29:31 +0000 Subject: [PATCH 108/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 144b1d0..81fe905 100644 --- a/README.md +++ b/README.md @@ -104,6 +104,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 29, 2024 | [432](https://leetcode.com/problems/all-oone-data-structure/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/432) | 🔴 Hard | | September 30, 2024 | [1381](https://leetcode.com/problems/design-a-stack-with-increment-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1381) | 🟡 Medium | | October 1, 2024 | [1497](https://leetcode.com/problems/check-if-array-pairs-are-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1497) | 🟡 Medium | +| October 2, 2024 | [1331](https://leetcode.com/problems/rank-transform-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1331) | 🟢 Easy | # Join our discussion! From b1daba84d4562ceced6220b106fa733aa8bc24cc Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 3 Oct 2024 00:29:33 +0000 Subject: [PATCH 109/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 81fe905..7228f32 100644 --- a/README.md +++ b/README.md @@ -105,6 +105,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 30, 2024 | [1381](https://leetcode.com/problems/design-a-stack-with-increment-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1381) | 🟡 Medium | | October 1, 2024 | [1497](https://leetcode.com/problems/check-if-array-pairs-are-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1497) | 🟡 Medium | | October 2, 2024 | [1331](https://leetcode.com/problems/rank-transform-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1331) | 🟢 Easy | +| October 3, 2024 | [1590](https://leetcode.com/problems/make-sum-divisible-by-p/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1590) | 🟡 Medium | # Join our discussion! From 2b39137f4d120be85fb7d7ef04d622ec44fa40e0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 4 Oct 2024 00:29:42 +0000 Subject: [PATCH 110/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7228f32..dc399cf 100644 --- a/README.md +++ b/README.md @@ -106,6 +106,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 1, 2024 | [1497](https://leetcode.com/problems/check-if-array-pairs-are-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1497) | 🟡 Medium | | October 2, 2024 | [1331](https://leetcode.com/problems/rank-transform-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1331) | 🟢 Easy | | October 3, 2024 | [1590](https://leetcode.com/problems/make-sum-divisible-by-p/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1590) | 🟡 Medium | +| October 4, 2024 | [2491](https://leetcode.com/problems/divide-players-into-teams-of-equal-skill/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2491) | 🟡 Medium | # Join our discussion! From 072015b82470bd6aa652ad7a708013df77f3cde3 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 5 Oct 2024 00:29:21 +0000 Subject: [PATCH 111/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index dc399cf..10a8303 100644 --- a/README.md +++ b/README.md @@ -107,6 +107,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 2, 2024 | [1331](https://leetcode.com/problems/rank-transform-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1331) | 🟢 Easy | | October 3, 2024 | [1590](https://leetcode.com/problems/make-sum-divisible-by-p/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1590) | 🟡 Medium | | October 4, 2024 | [2491](https://leetcode.com/problems/divide-players-into-teams-of-equal-skill/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2491) | 🟡 Medium | +| October 5, 2024 | [567](https://leetcode.com/problems/permutation-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/567) | 🟡 Medium | # Join our discussion! From 76b61f1240c47a68e6d28b63945500fb40c453a5 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 6 Oct 2024 00:32:36 +0000 Subject: [PATCH 112/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 10a8303..118db13 100644 --- a/README.md +++ b/README.md @@ -108,6 +108,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 3, 2024 | [1590](https://leetcode.com/problems/make-sum-divisible-by-p/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1590) | 🟡 Medium | | October 4, 2024 | [2491](https://leetcode.com/problems/divide-players-into-teams-of-equal-skill/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2491) | 🟡 Medium | | October 5, 2024 | [567](https://leetcode.com/problems/permutation-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/567) | 🟡 Medium | +| October 6, 2024 | [1813](https://leetcode.com/problems/sentence-similarity-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1813) | 🟡 Medium | # Join our discussion! From 8f6ada7c535b8e00561ca49640a313c3c1598e77 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 7 Oct 2024 00:31:14 +0000 Subject: [PATCH 113/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 118db13..aa66b23 100644 --- a/README.md +++ b/README.md @@ -109,6 +109,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 4, 2024 | [2491](https://leetcode.com/problems/divide-players-into-teams-of-equal-skill/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2491) | 🟡 Medium | | October 5, 2024 | [567](https://leetcode.com/problems/permutation-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/567) | 🟡 Medium | | October 6, 2024 | [1813](https://leetcode.com/problems/sentence-similarity-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1813) | 🟡 Medium | +| October 7, 2024 | [2696](https://leetcode.com/problems/minimum-string-length-after-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2696) | 🟢 Easy | # Join our discussion! From 62c0ca252d97eee5e46b412489e38ae5e7836183 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 8 Oct 2024 00:29:23 +0000 Subject: [PATCH 114/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index aa66b23..bbdd46f 100644 --- a/README.md +++ b/README.md @@ -110,6 +110,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 5, 2024 | [567](https://leetcode.com/problems/permutation-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/567) | 🟡 Medium | | October 6, 2024 | [1813](https://leetcode.com/problems/sentence-similarity-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1813) | 🟡 Medium | | October 7, 2024 | [2696](https://leetcode.com/problems/minimum-string-length-after-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2696) | 🟢 Easy | +| October 8, 2024 | [1963](https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-string-balanced/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1963) | 🟡 Medium | # Join our discussion! From 0be2d49c900d3488ac777fe0af7d649a9241f593 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 9 Oct 2024 00:29:40 +0000 Subject: [PATCH 115/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index bbdd46f..7d2927c 100644 --- a/README.md +++ b/README.md @@ -111,6 +111,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 6, 2024 | [1813](https://leetcode.com/problems/sentence-similarity-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1813) | 🟡 Medium | | October 7, 2024 | [2696](https://leetcode.com/problems/minimum-string-length-after-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2696) | 🟢 Easy | | October 8, 2024 | [1963](https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-string-balanced/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1963) | 🟡 Medium | +| October 9, 2024 | [921](https://leetcode.com/problems/minimum-add-to-make-parentheses-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/921) | 🟡 Medium | # Join our discussion! From c3bcd72b99340ccfc292aab402aae2342635433c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 10 Oct 2024 00:29:22 +0000 Subject: [PATCH 116/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7d2927c..e5d9c51 100644 --- a/README.md +++ b/README.md @@ -112,6 +112,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 7, 2024 | [2696](https://leetcode.com/problems/minimum-string-length-after-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2696) | 🟢 Easy | | October 8, 2024 | [1963](https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-string-balanced/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1963) | 🟡 Medium | | October 9, 2024 | [921](https://leetcode.com/problems/minimum-add-to-make-parentheses-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/921) | 🟡 Medium | +| October 10, 2024 | [962](https://leetcode.com/problems/maximum-width-ramp/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/962) | 🟡 Medium | # Join our discussion! From ade29a15cb9453c68859885b11b14a805132a98e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 11 Oct 2024 00:29:31 +0000 Subject: [PATCH 117/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e5d9c51..97e0fd6 100644 --- a/README.md +++ b/README.md @@ -113,6 +113,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 8, 2024 | [1963](https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-string-balanced/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1963) | 🟡 Medium | | October 9, 2024 | [921](https://leetcode.com/problems/minimum-add-to-make-parentheses-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/921) | 🟡 Medium | | October 10, 2024 | [962](https://leetcode.com/problems/maximum-width-ramp/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/962) | 🟡 Medium | +| October 11, 2024 | [1942](https://leetcode.com/problems/the-number-of-the-smallest-unoccupied-chair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1942) | 🟡 Medium | # Join our discussion! From 81777e6617c0919a54a9b37995db6696064bb189 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 12 Oct 2024 00:28:41 +0000 Subject: [PATCH 118/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 97e0fd6..a0291c9 100644 --- a/README.md +++ b/README.md @@ -114,6 +114,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 9, 2024 | [921](https://leetcode.com/problems/minimum-add-to-make-parentheses-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/921) | 🟡 Medium | | October 10, 2024 | [962](https://leetcode.com/problems/maximum-width-ramp/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/962) | 🟡 Medium | | October 11, 2024 | [1942](https://leetcode.com/problems/the-number-of-the-smallest-unoccupied-chair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1942) | 🟡 Medium | +| October 12, 2024 | [2406](https://leetcode.com/problems/divide-intervals-into-minimum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2406) | 🟡 Medium | # Join our discussion! From 56fe24a792aabbf46c35644ab12cecc1aaf82953 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 13 Oct 2024 00:32:17 +0000 Subject: [PATCH 119/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a0291c9..423542e 100644 --- a/README.md +++ b/README.md @@ -115,6 +115,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 10, 2024 | [962](https://leetcode.com/problems/maximum-width-ramp/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/962) | 🟡 Medium | | October 11, 2024 | [1942](https://leetcode.com/problems/the-number-of-the-smallest-unoccupied-chair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1942) | 🟡 Medium | | October 12, 2024 | [2406](https://leetcode.com/problems/divide-intervals-into-minimum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2406) | 🟡 Medium | +| October 13, 2024 | [632](https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/632) | 🔴 Hard | # Join our discussion! From 3f1cbac5926bf83f94eadc61b44c82c9d6901fe1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 14 Oct 2024 00:31:16 +0000 Subject: [PATCH 120/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 423542e..b037282 100644 --- a/README.md +++ b/README.md @@ -116,6 +116,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 11, 2024 | [1942](https://leetcode.com/problems/the-number-of-the-smallest-unoccupied-chair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1942) | 🟡 Medium | | October 12, 2024 | [2406](https://leetcode.com/problems/divide-intervals-into-minimum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2406) | 🟡 Medium | | October 13, 2024 | [632](https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/632) | 🔴 Hard | +| October 14, 2024 | [2530](https://leetcode.com/problems/maximal-score-after-applying-k-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2530) | 🟡 Medium | # Join our discussion! From b6ffe1a75fac7ed9ccf2aeda53ca7e77d11559f6 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 15 Oct 2024 00:30:11 +0000 Subject: [PATCH 121/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b037282..0f2782e 100644 --- a/README.md +++ b/README.md @@ -117,6 +117,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 12, 2024 | [2406](https://leetcode.com/problems/divide-intervals-into-minimum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2406) | 🟡 Medium | | October 13, 2024 | [632](https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/632) | 🔴 Hard | | October 14, 2024 | [2530](https://leetcode.com/problems/maximal-score-after-applying-k-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2530) | 🟡 Medium | +| October 15, 2024 | [2938](https://leetcode.com/problems/separate-black-and-white-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2938) | 🟡 Medium | # Join our discussion! From 5905f775ba0d1b1400d8e79eb7d13b20b9a5273a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 16 Oct 2024 00:29:57 +0000 Subject: [PATCH 122/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0f2782e..e4d5262 100644 --- a/README.md +++ b/README.md @@ -118,6 +118,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 13, 2024 | [632](https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/632) | 🔴 Hard | | October 14, 2024 | [2530](https://leetcode.com/problems/maximal-score-after-applying-k-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2530) | 🟡 Medium | | October 15, 2024 | [2938](https://leetcode.com/problems/separate-black-and-white-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2938) | 🟡 Medium | +| October 16, 2024 | [1405](https://leetcode.com/problems/longest-happy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1405) | 🟡 Medium | # Join our discussion! From 3259ac3395f79c30939408e258996b6d307c563b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 17 Oct 2024 00:29:52 +0000 Subject: [PATCH 123/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e4d5262..aff378f 100644 --- a/README.md +++ b/README.md @@ -119,6 +119,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 14, 2024 | [2530](https://leetcode.com/problems/maximal-score-after-applying-k-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2530) | 🟡 Medium | | October 15, 2024 | [2938](https://leetcode.com/problems/separate-black-and-white-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2938) | 🟡 Medium | | October 16, 2024 | [1405](https://leetcode.com/problems/longest-happy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1405) | 🟡 Medium | +| October 17, 2024 | [670](https://leetcode.com/problems/maximum-swap/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/670) | 🟡 Medium | # Join our discussion! From c0a23f429319dd21e841983cc9f8e333b117c39a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 18 Oct 2024 00:29:46 +0000 Subject: [PATCH 124/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index aff378f..71f622b 100644 --- a/README.md +++ b/README.md @@ -120,6 +120,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 15, 2024 | [2938](https://leetcode.com/problems/separate-black-and-white-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2938) | 🟡 Medium | | October 16, 2024 | [1405](https://leetcode.com/problems/longest-happy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1405) | 🟡 Medium | | October 17, 2024 | [670](https://leetcode.com/problems/maximum-swap/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/670) | 🟡 Medium | +| October 18, 2024 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | # Join our discussion! From e7428abad323fd1e43fde49dff67ad7b725b7d6e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 19 Oct 2024 00:29:28 +0000 Subject: [PATCH 125/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 71f622b..cab40cf 100644 --- a/README.md +++ b/README.md @@ -121,6 +121,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 16, 2024 | [1405](https://leetcode.com/problems/longest-happy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1405) | 🟡 Medium | | October 17, 2024 | [670](https://leetcode.com/problems/maximum-swap/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/670) | 🟡 Medium | | October 18, 2024 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | +| October 19, 2024 | [1545](https://leetcode.com/problems/find-kth-bit-in-nth-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1545) | 🟡 Medium | # Join our discussion! From 1775804a15a9e58923997b6ce204fe470f32bee8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 20 Oct 2024 00:33:08 +0000 Subject: [PATCH 126/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index cab40cf..9f70048 100644 --- a/README.md +++ b/README.md @@ -122,6 +122,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 17, 2024 | [670](https://leetcode.com/problems/maximum-swap/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/670) | 🟡 Medium | | October 18, 2024 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | | October 19, 2024 | [1545](https://leetcode.com/problems/find-kth-bit-in-nth-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1545) | 🟡 Medium | +| October 20, 2024 | [1106](https://leetcode.com/problems/parsing-a-boolean-expression/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1106) | 🔴 Hard | # Join our discussion! From 6ebaa98fed3d9399daaf20f019cbe2f54a86b1f5 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 21 Oct 2024 00:31:30 +0000 Subject: [PATCH 127/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9f70048..62bd53c 100644 --- a/README.md +++ b/README.md @@ -123,6 +123,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 18, 2024 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | | October 19, 2024 | [1545](https://leetcode.com/problems/find-kth-bit-in-nth-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1545) | 🟡 Medium | | October 20, 2024 | [1106](https://leetcode.com/problems/parsing-a-boolean-expression/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1106) | 🔴 Hard | +| October 21, 2024 | [1593](https://leetcode.com/problems/split-a-string-into-the-max-number-of-unique-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1593) | 🟡 Medium | # Join our discussion! From 14dd16359403af36764fc9d71d2e543f8477f021 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 22 Oct 2024 00:30:24 +0000 Subject: [PATCH 128/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 62bd53c..459d239 100644 --- a/README.md +++ b/README.md @@ -124,6 +124,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 19, 2024 | [1545](https://leetcode.com/problems/find-kth-bit-in-nth-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1545) | 🟡 Medium | | October 20, 2024 | [1106](https://leetcode.com/problems/parsing-a-boolean-expression/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1106) | 🔴 Hard | | October 21, 2024 | [1593](https://leetcode.com/problems/split-a-string-into-the-max-number-of-unique-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1593) | 🟡 Medium | +| October 22, 2024 | [2583](https://leetcode.com/problems/kth-largest-sum-in-a-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2583) | 🟡 Medium | # Join our discussion! From a2fae890010396972bb00b66645d4fa4c632c9fe Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 23 Oct 2024 00:29:54 +0000 Subject: [PATCH 129/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 459d239..c4147b6 100644 --- a/README.md +++ b/README.md @@ -125,6 +125,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 20, 2024 | [1106](https://leetcode.com/problems/parsing-a-boolean-expression/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1106) | 🔴 Hard | | October 21, 2024 | [1593](https://leetcode.com/problems/split-a-string-into-the-max-number-of-unique-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1593) | 🟡 Medium | | October 22, 2024 | [2583](https://leetcode.com/problems/kth-largest-sum-in-a-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2583) | 🟡 Medium | +| October 23, 2024 | [2641](https://leetcode.com/problems/cousins-in-binary-tree-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2641) | 🟡 Medium | # Join our discussion! From f3f68a56e33ce8508dab847a2be1916655acbc91 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 24 Oct 2024 00:29:53 +0000 Subject: [PATCH 130/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c4147b6..d0c85b1 100644 --- a/README.md +++ b/README.md @@ -126,6 +126,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 21, 2024 | [1593](https://leetcode.com/problems/split-a-string-into-the-max-number-of-unique-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1593) | 🟡 Medium | | October 22, 2024 | [2583](https://leetcode.com/problems/kth-largest-sum-in-a-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2583) | 🟡 Medium | | October 23, 2024 | [2641](https://leetcode.com/problems/cousins-in-binary-tree-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2641) | 🟡 Medium | +| October 24, 2024 | [951](https://leetcode.com/problems/flip-equivalent-binary-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/951) | 🟡 Medium | # Join our discussion! From fce44dbe317a6be556e96f8ff4bb1a0c2f1df4f1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 25 Oct 2024 00:30:14 +0000 Subject: [PATCH 131/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d0c85b1..02212e5 100644 --- a/README.md +++ b/README.md @@ -127,6 +127,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 22, 2024 | [2583](https://leetcode.com/problems/kth-largest-sum-in-a-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2583) | 🟡 Medium | | October 23, 2024 | [2641](https://leetcode.com/problems/cousins-in-binary-tree-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2641) | 🟡 Medium | | October 24, 2024 | [951](https://leetcode.com/problems/flip-equivalent-binary-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/951) | 🟡 Medium | +| October 25, 2024 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | # Join our discussion! From f79526dc157e4ed65fa0f5e6d2cd28e6a449daac Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 26 Oct 2024 00:29:18 +0000 Subject: [PATCH 132/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 02212e5..0f0eefb 100644 --- a/README.md +++ b/README.md @@ -128,6 +128,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 23, 2024 | [2641](https://leetcode.com/problems/cousins-in-binary-tree-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2641) | 🟡 Medium | | October 24, 2024 | [951](https://leetcode.com/problems/flip-equivalent-binary-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/951) | 🟡 Medium | | October 25, 2024 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | +| October 26, 2024 | [2458](https://leetcode.com/problems/height-of-binary-tree-after-subtree-removal-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2458) | 🔴 Hard | # Join our discussion! From f7aa72159f4d51cddf6ea5e88fd7fdbf207b23a1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 27 Oct 2024 00:33:02 +0000 Subject: [PATCH 133/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0f0eefb..c7f3593 100644 --- a/README.md +++ b/README.md @@ -129,6 +129,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 24, 2024 | [951](https://leetcode.com/problems/flip-equivalent-binary-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/951) | 🟡 Medium | | October 25, 2024 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | | October 26, 2024 | [2458](https://leetcode.com/problems/height-of-binary-tree-after-subtree-removal-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2458) | 🔴 Hard | +| October 27, 2024 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | # Join our discussion! From 9a3feebddfde7b3f9fa2546bd0cb915a8ec729b6 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 28 Oct 2024 00:32:15 +0000 Subject: [PATCH 134/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c7f3593..46e31b4 100644 --- a/README.md +++ b/README.md @@ -130,6 +130,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 25, 2024 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | | October 26, 2024 | [2458](https://leetcode.com/problems/height-of-binary-tree-after-subtree-removal-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2458) | 🔴 Hard | | October 27, 2024 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | +| October 28, 2024 | [2501](https://leetcode.com/problems/longest-square-streak-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2501) | 🟡 Medium | # Join our discussion! From 4403bf9987c6b524e81c7d7e8a0c765ea1d7efec Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 29 Oct 2024 00:30:57 +0000 Subject: [PATCH 135/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 46e31b4..e42760b 100644 --- a/README.md +++ b/README.md @@ -131,6 +131,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 26, 2024 | [2458](https://leetcode.com/problems/height-of-binary-tree-after-subtree-removal-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2458) | 🔴 Hard | | October 27, 2024 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | | October 28, 2024 | [2501](https://leetcode.com/problems/longest-square-streak-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2501) | 🟡 Medium | +| October 29, 2024 | [2684](https://leetcode.com/problems/maximum-number-of-moves-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2684) | 🟡 Medium | # Join our discussion! From c8467a6e87f7c8124fd3675cfd744b99ca6402dd Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 30 Oct 2024 00:30:26 +0000 Subject: [PATCH 136/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e42760b..bbc5b44 100644 --- a/README.md +++ b/README.md @@ -132,6 +132,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 27, 2024 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | | October 28, 2024 | [2501](https://leetcode.com/problems/longest-square-streak-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2501) | 🟡 Medium | | October 29, 2024 | [2684](https://leetcode.com/problems/maximum-number-of-moves-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2684) | 🟡 Medium | +| October 30, 2024 | [1671](https://leetcode.com/problems/minimum-number-of-removals-to-make-mountain-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1671) | 🔴 Hard | # Join our discussion! From 369b66bb6c0b153c8d67b8415c67682f32a2dc6c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 31 Oct 2024 00:30:41 +0000 Subject: [PATCH 137/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index bbc5b44..8b09276 100644 --- a/README.md +++ b/README.md @@ -133,6 +133,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 28, 2024 | [2501](https://leetcode.com/problems/longest-square-streak-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2501) | 🟡 Medium | | October 29, 2024 | [2684](https://leetcode.com/problems/maximum-number-of-moves-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2684) | 🟡 Medium | | October 30, 2024 | [1671](https://leetcode.com/problems/minimum-number-of-removals-to-make-mountain-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1671) | 🔴 Hard | +| October 31, 2024 | [2463](https://leetcode.com/problems/minimum-total-distance-traveled/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2463) | 🔴 Hard | # Join our discussion! From 8a0ef485fd49b2e2c1bc91335cf4e83ffec7b396 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 1 Nov 2024 00:33:48 +0000 Subject: [PATCH 138/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8b09276..3b8774d 100644 --- a/README.md +++ b/README.md @@ -134,6 +134,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 29, 2024 | [2684](https://leetcode.com/problems/maximum-number-of-moves-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2684) | 🟡 Medium | | October 30, 2024 | [1671](https://leetcode.com/problems/minimum-number-of-removals-to-make-mountain-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1671) | 🔴 Hard | | October 31, 2024 | [2463](https://leetcode.com/problems/minimum-total-distance-traveled/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2463) | 🔴 Hard | +| November 1, 2024 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | # Join our discussion! From a15a27727a6d7667fc313c6eb026270f4f083d0c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 2 Nov 2024 00:29:41 +0000 Subject: [PATCH 139/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3b8774d..a749175 100644 --- a/README.md +++ b/README.md @@ -135,6 +135,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 30, 2024 | [1671](https://leetcode.com/problems/minimum-number-of-removals-to-make-mountain-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1671) | 🔴 Hard | | October 31, 2024 | [2463](https://leetcode.com/problems/minimum-total-distance-traveled/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2463) | 🔴 Hard | | November 1, 2024 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | +| November 2, 2024 | [2490](https://leetcode.com/problems/circular-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2490) | 🟢 Easy | # Join our discussion! From 3134ffdd24e6814f0e01dde3bd4bba0b0b0b9dc5 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 3 Nov 2024 00:33:05 +0000 Subject: [PATCH 140/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a749175..a4831b3 100644 --- a/README.md +++ b/README.md @@ -136,6 +136,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 31, 2024 | [2463](https://leetcode.com/problems/minimum-total-distance-traveled/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2463) | 🔴 Hard | | November 1, 2024 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | | November 2, 2024 | [2490](https://leetcode.com/problems/circular-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2490) | 🟢 Easy | +| November 3, 2024 | [796](https://leetcode.com/problems/rotate-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/796) | 🟢 Easy | # Join our discussion! From e998ae35e2217c8343f632dbb4d2ad5fe9c033c8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 4 Nov 2024 00:31:47 +0000 Subject: [PATCH 141/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a4831b3..db51a28 100644 --- a/README.md +++ b/README.md @@ -137,6 +137,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 1, 2024 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | | November 2, 2024 | [2490](https://leetcode.com/problems/circular-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2490) | 🟢 Easy | | November 3, 2024 | [796](https://leetcode.com/problems/rotate-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/796) | 🟢 Easy | +| November 4, 2024 | [3163](https://leetcode.com/problems/string-compression-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3163) | 🟡 Medium | # Join our discussion! From f5e99f70adfa3b7cd12e458e8daeb175c66b36c8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 5 Nov 2024 00:29:47 +0000 Subject: [PATCH 142/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index db51a28..5031c29 100644 --- a/README.md +++ b/README.md @@ -138,6 +138,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 2, 2024 | [2490](https://leetcode.com/problems/circular-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2490) | 🟢 Easy | | November 3, 2024 | [796](https://leetcode.com/problems/rotate-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/796) | 🟢 Easy | | November 4, 2024 | [3163](https://leetcode.com/problems/string-compression-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3163) | 🟡 Medium | +| November 5, 2024 | [2914](https://leetcode.com/problems/minimum-number-of-changes-to-make-binary-string-beautiful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2914) | 🟡 Medium | # Join our discussion! From c388d27ec7d5ab4158b1ccadd2807cb8b5a64f6c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 6 Nov 2024 00:29:32 +0000 Subject: [PATCH 143/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5031c29..cc203dd 100644 --- a/README.md +++ b/README.md @@ -139,6 +139,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 3, 2024 | [796](https://leetcode.com/problems/rotate-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/796) | 🟢 Easy | | November 4, 2024 | [3163](https://leetcode.com/problems/string-compression-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3163) | 🟡 Medium | | November 5, 2024 | [2914](https://leetcode.com/problems/minimum-number-of-changes-to-make-binary-string-beautiful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2914) | 🟡 Medium | +| November 6, 2024 | [3011](https://leetcode.com/problems/find-if-array-can-be-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3011) | 🟡 Medium | # Join our discussion! From 7237947d4e74a23b09f48eb0dcefff6074ceff4b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 7 Nov 2024 00:29:43 +0000 Subject: [PATCH 144/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index cc203dd..17f2d9c 100644 --- a/README.md +++ b/README.md @@ -140,6 +140,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 4, 2024 | [3163](https://leetcode.com/problems/string-compression-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3163) | 🟡 Medium | | November 5, 2024 | [2914](https://leetcode.com/problems/minimum-number-of-changes-to-make-binary-string-beautiful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2914) | 🟡 Medium | | November 6, 2024 | [3011](https://leetcode.com/problems/find-if-array-can-be-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3011) | 🟡 Medium | +| November 7, 2024 | [2275](https://leetcode.com/problems/largest-combination-with-bitwise-and-greater-than-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2275) | 🟡 Medium | # Join our discussion! From fdf003b02470e0a241136a913a3affbe23c936f9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 8 Nov 2024 00:29:29 +0000 Subject: [PATCH 145/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 17f2d9c..4b73fce 100644 --- a/README.md +++ b/README.md @@ -141,6 +141,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 5, 2024 | [2914](https://leetcode.com/problems/minimum-number-of-changes-to-make-binary-string-beautiful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2914) | 🟡 Medium | | November 6, 2024 | [3011](https://leetcode.com/problems/find-if-array-can-be-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3011) | 🟡 Medium | | November 7, 2024 | [2275](https://leetcode.com/problems/largest-combination-with-bitwise-and-greater-than-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2275) | 🟡 Medium | +| November 8, 2024 | [1829](https://leetcode.com/problems/maximum-xor-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1829) | 🟡 Medium | # Join our discussion! From 2e2d2affd7d29803e4a4b738a0e7e39013db8f0e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 9 Nov 2024 00:29:02 +0000 Subject: [PATCH 146/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4b73fce..0aab0ed 100644 --- a/README.md +++ b/README.md @@ -142,6 +142,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 6, 2024 | [3011](https://leetcode.com/problems/find-if-array-can-be-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3011) | 🟡 Medium | | November 7, 2024 | [2275](https://leetcode.com/problems/largest-combination-with-bitwise-and-greater-than-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2275) | 🟡 Medium | | November 8, 2024 | [1829](https://leetcode.com/problems/maximum-xor-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1829) | 🟡 Medium | +| November 9, 2024 | [3133](https://leetcode.com/problems/minimum-array-end/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3133) | 🟡 Medium | # Join our discussion! From 6627bbeeb4c62d1ca255f0cc054a0554f6cd935b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 10 Nov 2024 00:32:17 +0000 Subject: [PATCH 147/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0aab0ed..171a468 100644 --- a/README.md +++ b/README.md @@ -143,6 +143,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 7, 2024 | [2275](https://leetcode.com/problems/largest-combination-with-bitwise-and-greater-than-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2275) | 🟡 Medium | | November 8, 2024 | [1829](https://leetcode.com/problems/maximum-xor-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1829) | 🟡 Medium | | November 9, 2024 | [3133](https://leetcode.com/problems/minimum-array-end/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3133) | 🟡 Medium | +| November 10, 2024 | [3097](https://leetcode.com/problems/shortest-subarray-with-or-at-least-k-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3097) | 🟡 Medium | # Join our discussion! From ed9f33cba5fa968e7d3e5dffaa04da20824e7181 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 11 Nov 2024 00:31:03 +0000 Subject: [PATCH 148/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 171a468..0437824 100644 --- a/README.md +++ b/README.md @@ -144,6 +144,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 8, 2024 | [1829](https://leetcode.com/problems/maximum-xor-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1829) | 🟡 Medium | | November 9, 2024 | [3133](https://leetcode.com/problems/minimum-array-end/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3133) | 🟡 Medium | | November 10, 2024 | [3097](https://leetcode.com/problems/shortest-subarray-with-or-at-least-k-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3097) | 🟡 Medium | +| November 11, 2024 | [2601](https://leetcode.com/problems/prime-subtraction-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2601) | 🟡 Medium | # Join our discussion! From fdc963d076840bf6131c88dea8f7c70ad808b738 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 12 Nov 2024 00:29:16 +0000 Subject: [PATCH 149/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0437824..12038cb 100644 --- a/README.md +++ b/README.md @@ -145,6 +145,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 9, 2024 | [3133](https://leetcode.com/problems/minimum-array-end/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3133) | 🟡 Medium | | November 10, 2024 | [3097](https://leetcode.com/problems/shortest-subarray-with-or-at-least-k-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3097) | 🟡 Medium | | November 11, 2024 | [2601](https://leetcode.com/problems/prime-subtraction-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2601) | 🟡 Medium | +| November 12, 2024 | [2070](https://leetcode.com/problems/most-beautiful-item-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2070) | 🟡 Medium | # Join our discussion! From b9d896c85865851a6353cd7cbf9e21d51a3a1634 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 13 Nov 2024 00:29:43 +0000 Subject: [PATCH 150/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 12038cb..7eb1210 100644 --- a/README.md +++ b/README.md @@ -146,6 +146,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 10, 2024 | [3097](https://leetcode.com/problems/shortest-subarray-with-or-at-least-k-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3097) | 🟡 Medium | | November 11, 2024 | [2601](https://leetcode.com/problems/prime-subtraction-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2601) | 🟡 Medium | | November 12, 2024 | [2070](https://leetcode.com/problems/most-beautiful-item-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2070) | 🟡 Medium | +| November 13, 2024 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | # Join our discussion! From 74f7b0d5705231595f1e81bd3121bc5f566331fa Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 14 Nov 2024 00:30:09 +0000 Subject: [PATCH 151/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7eb1210..ec38472 100644 --- a/README.md +++ b/README.md @@ -147,6 +147,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 11, 2024 | [2601](https://leetcode.com/problems/prime-subtraction-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2601) | 🟡 Medium | | November 12, 2024 | [2070](https://leetcode.com/problems/most-beautiful-item-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2070) | 🟡 Medium | | November 13, 2024 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | +| November 14, 2024 | [2064](https://leetcode.com/problems/minimized-maximum-of-products-distributed-to-any-store/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2064) | 🟡 Medium | # Join our discussion! From e3bb5586a23071100a1ff898f030bd20e313d185 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 15 Nov 2024 00:32:05 +0000 Subject: [PATCH 152/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ec38472..911fb23 100644 --- a/README.md +++ b/README.md @@ -148,6 +148,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 12, 2024 | [2070](https://leetcode.com/problems/most-beautiful-item-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2070) | 🟡 Medium | | November 13, 2024 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | | November 14, 2024 | [2064](https://leetcode.com/problems/minimized-maximum-of-products-distributed-to-any-store/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2064) | 🟡 Medium | +| November 15, 2024 | [1574](https://leetcode.com/problems/shortest-subarray-to-be-removed-to-make-array-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1574) | 🟡 Medium | # Join our discussion! From fac150f1ac75a458e900912fa4097d1d9e3a3b8b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 16 Nov 2024 00:31:18 +0000 Subject: [PATCH 153/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 911fb23..c6f8668 100644 --- a/README.md +++ b/README.md @@ -149,6 +149,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 13, 2024 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | | November 14, 2024 | [2064](https://leetcode.com/problems/minimized-maximum-of-products-distributed-to-any-store/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2064) | 🟡 Medium | | November 15, 2024 | [1574](https://leetcode.com/problems/shortest-subarray-to-be-removed-to-make-array-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1574) | 🟡 Medium | +| November 16, 2024 | [3254](https://leetcode.com/problems/find-the-power-of-k-size-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3254) | 🟡 Medium | # Join our discussion! From fea156293cbb46714bed8b55c493be60b4a317c4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 17 Nov 2024 00:34:06 +0000 Subject: [PATCH 154/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c6f8668..39a61fc 100644 --- a/README.md +++ b/README.md @@ -150,6 +150,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 14, 2024 | [2064](https://leetcode.com/problems/minimized-maximum-of-products-distributed-to-any-store/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2064) | 🟡 Medium | | November 15, 2024 | [1574](https://leetcode.com/problems/shortest-subarray-to-be-removed-to-make-array-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1574) | 🟡 Medium | | November 16, 2024 | [3254](https://leetcode.com/problems/find-the-power-of-k-size-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3254) | 🟡 Medium | +| November 17, 2024 | [862](https://leetcode.com/problems/shortest-subarray-with-sum-at-least-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/862) | 🔴 Hard | # Join our discussion! From 23cc2e831c0ed5e6742215ea87a40e6e576b55c0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 18 Nov 2024 00:33:20 +0000 Subject: [PATCH 155/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 39a61fc..e856383 100644 --- a/README.md +++ b/README.md @@ -151,6 +151,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 15, 2024 | [1574](https://leetcode.com/problems/shortest-subarray-to-be-removed-to-make-array-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1574) | 🟡 Medium | | November 16, 2024 | [3254](https://leetcode.com/problems/find-the-power-of-k-size-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3254) | 🟡 Medium | | November 17, 2024 | [862](https://leetcode.com/problems/shortest-subarray-with-sum-at-least-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/862) | 🔴 Hard | +| November 18, 2024 | [1652](https://leetcode.com/problems/defuse-the-bomb/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1652) | 🟢 Easy | # Join our discussion! From 3e7fb1594e6698b98f9279bcb51a3eb1bcaf2bb3 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 19 Nov 2024 00:31:54 +0000 Subject: [PATCH 156/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e856383..340ff7c 100644 --- a/README.md +++ b/README.md @@ -152,6 +152,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 16, 2024 | [3254](https://leetcode.com/problems/find-the-power-of-k-size-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3254) | 🟡 Medium | | November 17, 2024 | [862](https://leetcode.com/problems/shortest-subarray-with-sum-at-least-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/862) | 🔴 Hard | | November 18, 2024 | [1652](https://leetcode.com/problems/defuse-the-bomb/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1652) | 🟢 Easy | +| November 19, 2024 | [2461](https://leetcode.com/problems/maximum-sum-of-distinct-subarrays-with-length-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2461) | 🟡 Medium | # Join our discussion! From 571e6fcd05442717a4aa04bd0cf504714f90332f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 20 Nov 2024 00:31:20 +0000 Subject: [PATCH 157/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 340ff7c..83379df 100644 --- a/README.md +++ b/README.md @@ -153,6 +153,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 17, 2024 | [862](https://leetcode.com/problems/shortest-subarray-with-sum-at-least-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/862) | 🔴 Hard | | November 18, 2024 | [1652](https://leetcode.com/problems/defuse-the-bomb/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1652) | 🟢 Easy | | November 19, 2024 | [2461](https://leetcode.com/problems/maximum-sum-of-distinct-subarrays-with-length-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2461) | 🟡 Medium | +| November 20, 2024 | [2516](https://leetcode.com/problems/take-k-of-each-character-from-left-and-right/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2516) | 🟡 Medium | # Join our discussion! From 14c77817c63606f1864ce6d0bbf8af384b14297e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 21 Nov 2024 00:31:28 +0000 Subject: [PATCH 158/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 83379df..2bd35db 100644 --- a/README.md +++ b/README.md @@ -154,6 +154,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 18, 2024 | [1652](https://leetcode.com/problems/defuse-the-bomb/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1652) | 🟢 Easy | | November 19, 2024 | [2461](https://leetcode.com/problems/maximum-sum-of-distinct-subarrays-with-length-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2461) | 🟡 Medium | | November 20, 2024 | [2516](https://leetcode.com/problems/take-k-of-each-character-from-left-and-right/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2516) | 🟡 Medium | +| November 21, 2024 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | # Join our discussion! From 3a00c0cdc6619caad23f218e469712ee0ee4c31f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 22 Nov 2024 00:32:19 +0000 Subject: [PATCH 159/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2bd35db..6cb571d 100644 --- a/README.md +++ b/README.md @@ -155,6 +155,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 19, 2024 | [2461](https://leetcode.com/problems/maximum-sum-of-distinct-subarrays-with-length-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2461) | 🟡 Medium | | November 20, 2024 | [2516](https://leetcode.com/problems/take-k-of-each-character-from-left-and-right/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2516) | 🟡 Medium | | November 21, 2024 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | +| November 22, 2024 | [1072](https://leetcode.com/problems/flip-columns-for-maximum-number-of-equal-rows/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1072) | 🟡 Medium | # Join our discussion! From 157581f8b933fd97992a14978996da93e75783b0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 23 Nov 2024 00:30:49 +0000 Subject: [PATCH 160/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6cb571d..c49be2c 100644 --- a/README.md +++ b/README.md @@ -156,6 +156,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 20, 2024 | [2516](https://leetcode.com/problems/take-k-of-each-character-from-left-and-right/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2516) | 🟡 Medium | | November 21, 2024 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | | November 22, 2024 | [1072](https://leetcode.com/problems/flip-columns-for-maximum-number-of-equal-rows/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1072) | 🟡 Medium | +| November 23, 2024 | [1861](https://leetcode.com/problems/rotating-the-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1861) | 🟡 Medium | # Join our discussion! From b4a82f2bb8a6d6668a8b287f991631b751699410 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 24 Nov 2024 00:34:24 +0000 Subject: [PATCH 161/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c49be2c..dcb1981 100644 --- a/README.md +++ b/README.md @@ -157,6 +157,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 21, 2024 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | | November 22, 2024 | [1072](https://leetcode.com/problems/flip-columns-for-maximum-number-of-equal-rows/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1072) | 🟡 Medium | | November 23, 2024 | [1861](https://leetcode.com/problems/rotating-the-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1861) | 🟡 Medium | +| November 24, 2024 | [1975](https://leetcode.com/problems/maximum-matrix-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1975) | 🟡 Medium | # Join our discussion! From 7417ba13087fa0cba4d85b09703032580056832b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 25 Nov 2024 00:32:59 +0000 Subject: [PATCH 162/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index dcb1981..c83d76b 100644 --- a/README.md +++ b/README.md @@ -158,6 +158,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 22, 2024 | [1072](https://leetcode.com/problems/flip-columns-for-maximum-number-of-equal-rows/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1072) | 🟡 Medium | | November 23, 2024 | [1861](https://leetcode.com/problems/rotating-the-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1861) | 🟡 Medium | | November 24, 2024 | [1975](https://leetcode.com/problems/maximum-matrix-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1975) | 🟡 Medium | +| November 25, 2024 | [773](https://leetcode.com/problems/sliding-puzzle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/773) | 🔴 Hard | # Join our discussion! From c63c6dfc6e31aef2df404f7a3c469065ed8526d4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 26 Nov 2024 00:31:50 +0000 Subject: [PATCH 163/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c83d76b..d51f05b 100644 --- a/README.md +++ b/README.md @@ -159,6 +159,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 23, 2024 | [1861](https://leetcode.com/problems/rotating-the-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1861) | 🟡 Medium | | November 24, 2024 | [1975](https://leetcode.com/problems/maximum-matrix-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1975) | 🟡 Medium | | November 25, 2024 | [773](https://leetcode.com/problems/sliding-puzzle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/773) | 🔴 Hard | +| November 26, 2024 | [2924](https://leetcode.com/problems/find-champion-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2924) | 🟡 Medium | # Join our discussion! From 7dcc03b9a67d9b0317fe0b10f83cfa7c560681b6 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 27 Nov 2024 00:32:13 +0000 Subject: [PATCH 164/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d51f05b..9ae361f 100644 --- a/README.md +++ b/README.md @@ -160,6 +160,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 24, 2024 | [1975](https://leetcode.com/problems/maximum-matrix-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1975) | 🟡 Medium | | November 25, 2024 | [773](https://leetcode.com/problems/sliding-puzzle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/773) | 🔴 Hard | | November 26, 2024 | [2924](https://leetcode.com/problems/find-champion-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2924) | 🟡 Medium | +| November 27, 2024 | [3243](https://leetcode.com/problems/shortest-distance-after-road-addition-queries-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3243) | 🟡 Medium | # Join our discussion! From 36afbbd2143dc4402fe9f4e8643db4cc5eef4038 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 28 Nov 2024 00:32:17 +0000 Subject: [PATCH 165/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9ae361f..4f02b99 100644 --- a/README.md +++ b/README.md @@ -161,6 +161,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 25, 2024 | [773](https://leetcode.com/problems/sliding-puzzle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/773) | 🔴 Hard | | November 26, 2024 | [2924](https://leetcode.com/problems/find-champion-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2924) | 🟡 Medium | | November 27, 2024 | [3243](https://leetcode.com/problems/shortest-distance-after-road-addition-queries-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3243) | 🟡 Medium | +| November 28, 2024 | [2290](https://leetcode.com/problems/minimum-obstacle-removal-to-reach-corner/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2290) | 🔴 Hard | # Join our discussion! From 1aa1615539fb06f6540f38f6c23e32fefd7062b3 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 29 Nov 2024 00:32:02 +0000 Subject: [PATCH 166/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4f02b99..0ff1d56 100644 --- a/README.md +++ b/README.md @@ -162,6 +162,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 26, 2024 | [2924](https://leetcode.com/problems/find-champion-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2924) | 🟡 Medium | | November 27, 2024 | [3243](https://leetcode.com/problems/shortest-distance-after-road-addition-queries-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3243) | 🟡 Medium | | November 28, 2024 | [2290](https://leetcode.com/problems/minimum-obstacle-removal-to-reach-corner/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2290) | 🔴 Hard | +| November 29, 2024 | [2577](https://leetcode.com/problems/minimum-time-to-visit-a-cell-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2577) | 🔴 Hard | # Join our discussion! From 86c231a22ca1cbd009cc54512c76a254a9b3ffc1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 30 Nov 2024 00:31:20 +0000 Subject: [PATCH 167/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0ff1d56..fca5743 100644 --- a/README.md +++ b/README.md @@ -163,6 +163,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 27, 2024 | [3243](https://leetcode.com/problems/shortest-distance-after-road-addition-queries-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3243) | 🟡 Medium | | November 28, 2024 | [2290](https://leetcode.com/problems/minimum-obstacle-removal-to-reach-corner/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2290) | 🔴 Hard | | November 29, 2024 | [2577](https://leetcode.com/problems/minimum-time-to-visit-a-cell-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2577) | 🔴 Hard | +| November 30, 2024 | [2097](https://leetcode.com/problems/valid-arrangement-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2097) | 🔴 Hard | # Join our discussion! From 3cfd7e86510eb4d2fdbf9c63138d8598d5bb133e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 1 Dec 2024 00:39:15 +0000 Subject: [PATCH 168/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index fca5743..1a3b581 100644 --- a/README.md +++ b/README.md @@ -164,6 +164,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 28, 2024 | [2290](https://leetcode.com/problems/minimum-obstacle-removal-to-reach-corner/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2290) | 🔴 Hard | | November 29, 2024 | [2577](https://leetcode.com/problems/minimum-time-to-visit-a-cell-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2577) | 🔴 Hard | | November 30, 2024 | [2097](https://leetcode.com/problems/valid-arrangement-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2097) | 🔴 Hard | +| December 1, 2024 | [1346](https://leetcode.com/problems/check-if-n-and-its-double-exist/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1346) | 🟢 Easy | # Join our discussion! From 06d5998a52ef763a8e636aff134f0c391a25878c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 2 Dec 2024 00:34:19 +0000 Subject: [PATCH 169/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1a3b581..e00c9a2 100644 --- a/README.md +++ b/README.md @@ -165,6 +165,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 29, 2024 | [2577](https://leetcode.com/problems/minimum-time-to-visit-a-cell-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2577) | 🔴 Hard | | November 30, 2024 | [2097](https://leetcode.com/problems/valid-arrangement-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2097) | 🔴 Hard | | December 1, 2024 | [1346](https://leetcode.com/problems/check-if-n-and-its-double-exist/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1346) | 🟢 Easy | +| December 2, 2024 | [1455](https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1455) | 🟢 Easy | # Join our discussion! From cfeadb4bdbe279dc080169df58c568a54e5daba8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 3 Dec 2024 00:33:38 +0000 Subject: [PATCH 170/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e00c9a2..5ce1013 100644 --- a/README.md +++ b/README.md @@ -166,6 +166,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 30, 2024 | [2097](https://leetcode.com/problems/valid-arrangement-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2097) | 🔴 Hard | | December 1, 2024 | [1346](https://leetcode.com/problems/check-if-n-and-its-double-exist/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1346) | 🟢 Easy | | December 2, 2024 | [1455](https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1455) | 🟢 Easy | +| December 3, 2024 | [2109](https://leetcode.com/problems/adding-spaces-to-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2109) | 🟡 Medium | # Join our discussion! From 07aba901f29a3c3d4422dd43b6ec8deac7068874 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 4 Dec 2024 00:33:01 +0000 Subject: [PATCH 171/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5ce1013..b50ec54 100644 --- a/README.md +++ b/README.md @@ -167,6 +167,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 1, 2024 | [1346](https://leetcode.com/problems/check-if-n-and-its-double-exist/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1346) | 🟢 Easy | | December 2, 2024 | [1455](https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1455) | 🟢 Easy | | December 3, 2024 | [2109](https://leetcode.com/problems/adding-spaces-to-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2109) | 🟡 Medium | +| December 4, 2024 | [2825](https://leetcode.com/problems/make-string-a-subsequence-using-cyclic-increments/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2825) | 🟡 Medium | # Join our discussion! From 82cb58af0de0152cde8ed197330a21db6c242eac Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 5 Dec 2024 00:32:55 +0000 Subject: [PATCH 172/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b50ec54..b2fb1f1 100644 --- a/README.md +++ b/README.md @@ -168,6 +168,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 2, 2024 | [1455](https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1455) | 🟢 Easy | | December 3, 2024 | [2109](https://leetcode.com/problems/adding-spaces-to-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2109) | 🟡 Medium | | December 4, 2024 | [2825](https://leetcode.com/problems/make-string-a-subsequence-using-cyclic-increments/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2825) | 🟡 Medium | +| December 5, 2024 | [2337](https://leetcode.com/problems/move-pieces-to-obtain-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2337) | 🟡 Medium | # Join our discussion! From e35dcf1163fbee3bbfdce479b8eec2e2e67e70b8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 6 Dec 2024 00:32:57 +0000 Subject: [PATCH 173/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b2fb1f1..d1477fe 100644 --- a/README.md +++ b/README.md @@ -169,6 +169,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 3, 2024 | [2109](https://leetcode.com/problems/adding-spaces-to-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2109) | 🟡 Medium | | December 4, 2024 | [2825](https://leetcode.com/problems/make-string-a-subsequence-using-cyclic-increments/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2825) | 🟡 Medium | | December 5, 2024 | [2337](https://leetcode.com/problems/move-pieces-to-obtain-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2337) | 🟡 Medium | +| December 6, 2024 | [2554](https://leetcode.com/problems/maximum-number-of-integers-to-choose-from-a-range-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2554) | 🟡 Medium | # Join our discussion! From 4528e6f28b04ae8c348ca8b5c7c3130585fab148 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 7 Dec 2024 00:32:19 +0000 Subject: [PATCH 174/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d1477fe..650e905 100644 --- a/README.md +++ b/README.md @@ -170,6 +170,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 4, 2024 | [2825](https://leetcode.com/problems/make-string-a-subsequence-using-cyclic-increments/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2825) | 🟡 Medium | | December 5, 2024 | [2337](https://leetcode.com/problems/move-pieces-to-obtain-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2337) | 🟡 Medium | | December 6, 2024 | [2554](https://leetcode.com/problems/maximum-number-of-integers-to-choose-from-a-range-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2554) | 🟡 Medium | +| December 7, 2024 | [1760](https://leetcode.com/problems/minimum-limit-of-balls-in-a-bag/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1760) | 🟡 Medium | # Join our discussion! From 466daabebe7df9cbb1e6a729030dd6bc4381bd5b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 8 Dec 2024 00:35:58 +0000 Subject: [PATCH 175/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 650e905..b052ece 100644 --- a/README.md +++ b/README.md @@ -171,6 +171,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 5, 2024 | [2337](https://leetcode.com/problems/move-pieces-to-obtain-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2337) | 🟡 Medium | | December 6, 2024 | [2554](https://leetcode.com/problems/maximum-number-of-integers-to-choose-from-a-range-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2554) | 🟡 Medium | | December 7, 2024 | [1760](https://leetcode.com/problems/minimum-limit-of-balls-in-a-bag/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1760) | 🟡 Medium | +| December 8, 2024 | [2054](https://leetcode.com/problems/two-best-non-overlapping-events/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2054) | 🟡 Medium | # Join our discussion! From 770a2fe0acef1c167b911dae073f3740bb86f00c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 9 Dec 2024 00:34:23 +0000 Subject: [PATCH 176/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b052ece..2a2bd6a 100644 --- a/README.md +++ b/README.md @@ -172,6 +172,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 6, 2024 | [2554](https://leetcode.com/problems/maximum-number-of-integers-to-choose-from-a-range-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2554) | 🟡 Medium | | December 7, 2024 | [1760](https://leetcode.com/problems/minimum-limit-of-balls-in-a-bag/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1760) | 🟡 Medium | | December 8, 2024 | [2054](https://leetcode.com/problems/two-best-non-overlapping-events/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2054) | 🟡 Medium | +| December 9, 2024 | [3152](https://leetcode.com/problems/special-array-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3152) | 🟡 Medium | # Join our discussion! From 678437d7510af1ea2197d11d4f39597baed6afed Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 10 Dec 2024 00:33:29 +0000 Subject: [PATCH 177/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2a2bd6a..1623686 100644 --- a/README.md +++ b/README.md @@ -173,6 +173,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 7, 2024 | [1760](https://leetcode.com/problems/minimum-limit-of-balls-in-a-bag/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1760) | 🟡 Medium | | December 8, 2024 | [2054](https://leetcode.com/problems/two-best-non-overlapping-events/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2054) | 🟡 Medium | | December 9, 2024 | [3152](https://leetcode.com/problems/special-array-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3152) | 🟡 Medium | +| December 10, 2024 | [2981](https://leetcode.com/problems/find-longest-special-substring-that-occurs-thrice-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2981) | 🟡 Medium | # Join our discussion! From c2a5a78c79726cecfe2766476885128f243fcde1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 11 Dec 2024 00:33:02 +0000 Subject: [PATCH 178/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1623686..e90652a 100644 --- a/README.md +++ b/README.md @@ -174,6 +174,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 8, 2024 | [2054](https://leetcode.com/problems/two-best-non-overlapping-events/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2054) | 🟡 Medium | | December 9, 2024 | [3152](https://leetcode.com/problems/special-array-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3152) | 🟡 Medium | | December 10, 2024 | [2981](https://leetcode.com/problems/find-longest-special-substring-that-occurs-thrice-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2981) | 🟡 Medium | +| December 11, 2024 | [2779](https://leetcode.com/problems/maximum-beauty-of-an-array-after-applying-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2779) | 🟡 Medium | # Join our discussion! From a297564486561f2aacc2e70a1a3a6ff48b246e48 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 12 Dec 2024 00:32:56 +0000 Subject: [PATCH 179/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e90652a..0eeda89 100644 --- a/README.md +++ b/README.md @@ -175,6 +175,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 9, 2024 | [3152](https://leetcode.com/problems/special-array-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3152) | 🟡 Medium | | December 10, 2024 | [2981](https://leetcode.com/problems/find-longest-special-substring-that-occurs-thrice-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2981) | 🟡 Medium | | December 11, 2024 | [2779](https://leetcode.com/problems/maximum-beauty-of-an-array-after-applying-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2779) | 🟡 Medium | +| December 12, 2024 | [2558](https://leetcode.com/problems/take-gifts-from-the-richest-pile/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2558) | 🟢 Easy | # Join our discussion! From 6bdceb5455f7c9eff8cfe3548c1e5fb22784baef Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 13 Dec 2024 00:33:25 +0000 Subject: [PATCH 180/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0eeda89..d47e617 100644 --- a/README.md +++ b/README.md @@ -176,6 +176,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 10, 2024 | [2981](https://leetcode.com/problems/find-longest-special-substring-that-occurs-thrice-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2981) | 🟡 Medium | | December 11, 2024 | [2779](https://leetcode.com/problems/maximum-beauty-of-an-array-after-applying-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2779) | 🟡 Medium | | December 12, 2024 | [2558](https://leetcode.com/problems/take-gifts-from-the-richest-pile/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2558) | 🟢 Easy | +| December 13, 2024 | [2593](https://leetcode.com/problems/find-score-of-an-array-after-marking-all-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2593) | 🟡 Medium | # Join our discussion! From 1fd9d5d94f30795aaf19b2ff72fa5bdafc2beafb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 14 Dec 2024 00:31:57 +0000 Subject: [PATCH 181/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d47e617..4dd40dd 100644 --- a/README.md +++ b/README.md @@ -177,6 +177,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 11, 2024 | [2779](https://leetcode.com/problems/maximum-beauty-of-an-array-after-applying-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2779) | 🟡 Medium | | December 12, 2024 | [2558](https://leetcode.com/problems/take-gifts-from-the-richest-pile/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2558) | 🟢 Easy | | December 13, 2024 | [2593](https://leetcode.com/problems/find-score-of-an-array-after-marking-all-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2593) | 🟡 Medium | +| December 14, 2024 | [2762](https://leetcode.com/problems/continuous-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2762) | 🟡 Medium | # Join our discussion! From 228f5dd70baede8a2d461c597ac5fbb12605220d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 15 Dec 2024 00:36:09 +0000 Subject: [PATCH 182/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4dd40dd..c755acd 100644 --- a/README.md +++ b/README.md @@ -178,6 +178,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 12, 2024 | [2558](https://leetcode.com/problems/take-gifts-from-the-richest-pile/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2558) | 🟢 Easy | | December 13, 2024 | [2593](https://leetcode.com/problems/find-score-of-an-array-after-marking-all-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2593) | 🟡 Medium | | December 14, 2024 | [2762](https://leetcode.com/problems/continuous-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2762) | 🟡 Medium | +| December 15, 2024 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | # Join our discussion! From 5e0f0be7f28a6e664cadae0503a3b9a0f4bfccd2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 16 Dec 2024 00:34:48 +0000 Subject: [PATCH 183/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c755acd..41e4d34 100644 --- a/README.md +++ b/README.md @@ -179,6 +179,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 13, 2024 | [2593](https://leetcode.com/problems/find-score-of-an-array-after-marking-all-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2593) | 🟡 Medium | | December 14, 2024 | [2762](https://leetcode.com/problems/continuous-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2762) | 🟡 Medium | | December 15, 2024 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | +| December 16, 2024 | [3264](https://leetcode.com/problems/final-array-state-after-k-multiplication-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3264) | 🟢 Easy | # Join our discussion! From ad42aa8dec2a814f38e320287adf9175d36d91d0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 17 Dec 2024 00:32:49 +0000 Subject: [PATCH 184/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 41e4d34..af10b41 100644 --- a/README.md +++ b/README.md @@ -180,6 +180,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 14, 2024 | [2762](https://leetcode.com/problems/continuous-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2762) | 🟡 Medium | | December 15, 2024 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | | December 16, 2024 | [3264](https://leetcode.com/problems/final-array-state-after-k-multiplication-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3264) | 🟢 Easy | +| December 17, 2024 | [2182](https://leetcode.com/problems/construct-string-with-repeat-limit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2182) | 🟡 Medium | # Join our discussion! From 0ab837cfdb921865e888f004babab6c5affb65e1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 18 Dec 2024 00:31:49 +0000 Subject: [PATCH 185/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index af10b41..fa84ac0 100644 --- a/README.md +++ b/README.md @@ -181,6 +181,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 15, 2024 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | | December 16, 2024 | [3264](https://leetcode.com/problems/final-array-state-after-k-multiplication-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3264) | 🟢 Easy | | December 17, 2024 | [2182](https://leetcode.com/problems/construct-string-with-repeat-limit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2182) | 🟡 Medium | +| December 18, 2024 | [1475](https://leetcode.com/problems/final-prices-with-a-special-discount-in-a-shop/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1475) | 🟢 Easy | # Join our discussion! From 3bc4020dffb662d098a0e332c867a894c0090a27 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 19 Dec 2024 00:32:02 +0000 Subject: [PATCH 186/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index fa84ac0..9e738c4 100644 --- a/README.md +++ b/README.md @@ -182,6 +182,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 16, 2024 | [3264](https://leetcode.com/problems/final-array-state-after-k-multiplication-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3264) | 🟢 Easy | | December 17, 2024 | [2182](https://leetcode.com/problems/construct-string-with-repeat-limit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2182) | 🟡 Medium | | December 18, 2024 | [1475](https://leetcode.com/problems/final-prices-with-a-special-discount-in-a-shop/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1475) | 🟢 Easy | +| December 19, 2024 | [769](https://leetcode.com/problems/max-chunks-to-make-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/769) | 🟡 Medium | # Join our discussion! From 8b79fc5a9620e362953e1551eec460a08745e3c1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 20 Dec 2024 00:30:26 +0000 Subject: [PATCH 187/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9e738c4..35e3ccd 100644 --- a/README.md +++ b/README.md @@ -183,6 +183,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 17, 2024 | [2182](https://leetcode.com/problems/construct-string-with-repeat-limit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2182) | 🟡 Medium | | December 18, 2024 | [1475](https://leetcode.com/problems/final-prices-with-a-special-discount-in-a-shop/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1475) | 🟢 Easy | | December 19, 2024 | [769](https://leetcode.com/problems/max-chunks-to-make-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/769) | 🟡 Medium | +| December 20, 2024 | [2415](https://leetcode.com/problems/reverse-odd-levels-of-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2415) | 🟡 Medium | # Join our discussion! From a19f7855c5da073922458fa568cc7c786006a73e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 21 Dec 2024 00:29:54 +0000 Subject: [PATCH 188/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 35e3ccd..429cf11 100644 --- a/README.md +++ b/README.md @@ -184,6 +184,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 18, 2024 | [1475](https://leetcode.com/problems/final-prices-with-a-special-discount-in-a-shop/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1475) | 🟢 Easy | | December 19, 2024 | [769](https://leetcode.com/problems/max-chunks-to-make-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/769) | 🟡 Medium | | December 20, 2024 | [2415](https://leetcode.com/problems/reverse-odd-levels-of-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2415) | 🟡 Medium | +| December 21, 2024 | [2872](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2872) | 🔴 Hard | # Join our discussion! From 93653e27c73b8e84d5d0ee3641c21d6d0e259fe5 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 22 Dec 2024 00:33:25 +0000 Subject: [PATCH 189/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 429cf11..b07084f 100644 --- a/README.md +++ b/README.md @@ -185,6 +185,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 19, 2024 | [769](https://leetcode.com/problems/max-chunks-to-make-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/769) | 🟡 Medium | | December 20, 2024 | [2415](https://leetcode.com/problems/reverse-odd-levels-of-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2415) | 🟡 Medium | | December 21, 2024 | [2872](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2872) | 🔴 Hard | +| December 22, 2024 | [2940](https://leetcode.com/problems/find-building-where-alice-and-bob-can-meet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2940) | 🔴 Hard | # Join our discussion! From 74f724a8dd862b5c393e9bf403304d81b10f975c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 23 Dec 2024 00:31:45 +0000 Subject: [PATCH 190/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b07084f..c5ab711 100644 --- a/README.md +++ b/README.md @@ -186,6 +186,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 20, 2024 | [2415](https://leetcode.com/problems/reverse-odd-levels-of-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2415) | 🟡 Medium | | December 21, 2024 | [2872](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2872) | 🔴 Hard | | December 22, 2024 | [2940](https://leetcode.com/problems/find-building-where-alice-and-bob-can-meet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2940) | 🔴 Hard | +| December 23, 2024 | [2471](https://leetcode.com/problems/minimum-number-of-operations-to-sort-a-binary-tree-by-level/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2471) | 🟡 Medium | # Join our discussion! From c0968df54a983eb29da1f17277db8b6e8f00b52a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 24 Dec 2024 00:30:14 +0000 Subject: [PATCH 191/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c5ab711..9b2fc6c 100644 --- a/README.md +++ b/README.md @@ -187,6 +187,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 21, 2024 | [2872](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2872) | 🔴 Hard | | December 22, 2024 | [2940](https://leetcode.com/problems/find-building-where-alice-and-bob-can-meet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2940) | 🔴 Hard | | December 23, 2024 | [2471](https://leetcode.com/problems/minimum-number-of-operations-to-sort-a-binary-tree-by-level/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2471) | 🟡 Medium | +| December 24, 2024 | [3203](https://leetcode.com/problems/find-minimum-diameter-after-merging-two-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3203) | 🔴 Hard | # Join our discussion! From 26f05d5a17b82b495972124af45139b9d4b7f96e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 25 Dec 2024 00:29:58 +0000 Subject: [PATCH 192/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9b2fc6c..d40b156 100644 --- a/README.md +++ b/README.md @@ -188,6 +188,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 22, 2024 | [2940](https://leetcode.com/problems/find-building-where-alice-and-bob-can-meet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2940) | 🔴 Hard | | December 23, 2024 | [2471](https://leetcode.com/problems/minimum-number-of-operations-to-sort-a-binary-tree-by-level/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2471) | 🟡 Medium | | December 24, 2024 | [3203](https://leetcode.com/problems/find-minimum-diameter-after-merging-two-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3203) | 🔴 Hard | +| December 25, 2024 | [515](https://leetcode.com/problems/find-largest-value-in-each-tree-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/515) | 🟡 Medium | # Join our discussion! From 02f9d05f244b0630d04c8027be2b042d5500733b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 26 Dec 2024 00:30:12 +0000 Subject: [PATCH 193/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d40b156..8fca39b 100644 --- a/README.md +++ b/README.md @@ -189,6 +189,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 23, 2024 | [2471](https://leetcode.com/problems/minimum-number-of-operations-to-sort-a-binary-tree-by-level/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2471) | 🟡 Medium | | December 24, 2024 | [3203](https://leetcode.com/problems/find-minimum-diameter-after-merging-two-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3203) | 🔴 Hard | | December 25, 2024 | [515](https://leetcode.com/problems/find-largest-value-in-each-tree-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/515) | 🟡 Medium | +| December 26, 2024 | [494](https://leetcode.com/problems/target-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/494) | 🟡 Medium | # Join our discussion! From 0ff48ed5d34eea33c404cdab2a59f6a7479971c0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 27 Dec 2024 00:30:18 +0000 Subject: [PATCH 194/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8fca39b..4e33c84 100644 --- a/README.md +++ b/README.md @@ -190,6 +190,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 24, 2024 | [3203](https://leetcode.com/problems/find-minimum-diameter-after-merging-two-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3203) | 🔴 Hard | | December 25, 2024 | [515](https://leetcode.com/problems/find-largest-value-in-each-tree-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/515) | 🟡 Medium | | December 26, 2024 | [494](https://leetcode.com/problems/target-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/494) | 🟡 Medium | +| December 27, 2024 | [1014](https://leetcode.com/problems/best-sightseeing-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1014) | 🟡 Medium | # Join our discussion! From a9a816bda8459ffd042275bab35ee70c67b23aa4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 28 Dec 2024 00:29:38 +0000 Subject: [PATCH 195/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4e33c84..155b0bd 100644 --- a/README.md +++ b/README.md @@ -191,6 +191,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 25, 2024 | [515](https://leetcode.com/problems/find-largest-value-in-each-tree-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/515) | 🟡 Medium | | December 26, 2024 | [494](https://leetcode.com/problems/target-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/494) | 🟡 Medium | | December 27, 2024 | [1014](https://leetcode.com/problems/best-sightseeing-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1014) | 🟡 Medium | +| December 28, 2024 | [689](https://leetcode.com/problems/maximum-sum-of-3-non-overlapping-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/689) | 🔴 Hard | # Join our discussion! From 050771470c58497ae60339011464b1460595dfcf Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 29 Dec 2024 00:33:40 +0000 Subject: [PATCH 196/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 155b0bd..fa7affa 100644 --- a/README.md +++ b/README.md @@ -192,6 +192,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 26, 2024 | [494](https://leetcode.com/problems/target-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/494) | 🟡 Medium | | December 27, 2024 | [1014](https://leetcode.com/problems/best-sightseeing-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1014) | 🟡 Medium | | December 28, 2024 | [689](https://leetcode.com/problems/maximum-sum-of-3-non-overlapping-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/689) | 🔴 Hard | +| December 29, 2024 | [1639](https://leetcode.com/problems/number-of-ways-to-form-a-target-string-given-a-dictionary/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1639) | 🔴 Hard | # Join our discussion! From a706349c5a7d79760a3a7e84af612e04877b87e9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 30 Dec 2024 00:31:53 +0000 Subject: [PATCH 197/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index fa7affa..c4d2792 100644 --- a/README.md +++ b/README.md @@ -193,6 +193,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 27, 2024 | [1014](https://leetcode.com/problems/best-sightseeing-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1014) | 🟡 Medium | | December 28, 2024 | [689](https://leetcode.com/problems/maximum-sum-of-3-non-overlapping-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/689) | 🔴 Hard | | December 29, 2024 | [1639](https://leetcode.com/problems/number-of-ways-to-form-a-target-string-given-a-dictionary/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1639) | 🔴 Hard | +| December 30, 2024 | [2466](https://leetcode.com/problems/count-ways-to-build-good-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2466) | 🟡 Medium | # Join our discussion! From 329f967c4068b466a5933b03b7087cbdd3ecef7f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 31 Dec 2024 00:30:07 +0000 Subject: [PATCH 198/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c4d2792..bc0a066 100644 --- a/README.md +++ b/README.md @@ -194,6 +194,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 28, 2024 | [689](https://leetcode.com/problems/maximum-sum-of-3-non-overlapping-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/689) | 🔴 Hard | | December 29, 2024 | [1639](https://leetcode.com/problems/number-of-ways-to-form-a-target-string-given-a-dictionary/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1639) | 🔴 Hard | | December 30, 2024 | [2466](https://leetcode.com/problems/count-ways-to-build-good-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2466) | 🟡 Medium | +| December 31, 2024 | [983](https://leetcode.com/problems/minimum-cost-for-tickets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/983) | 🟡 Medium | # Join our discussion! From 2d3cdb20e02eeea5d0e5561e90ad4afa1ac7ebf4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 1 Jan 2025 00:34:02 +0000 Subject: [PATCH 199/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index bc0a066..3978ce7 100644 --- a/README.md +++ b/README.md @@ -195,6 +195,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 29, 2024 | [1639](https://leetcode.com/problems/number-of-ways-to-form-a-target-string-given-a-dictionary/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1639) | 🔴 Hard | | December 30, 2024 | [2466](https://leetcode.com/problems/count-ways-to-build-good-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2466) | 🟡 Medium | | December 31, 2024 | [983](https://leetcode.com/problems/minimum-cost-for-tickets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/983) | 🟡 Medium | +| January 1, 2025 | [1422](https://leetcode.com/problems/maximum-score-after-splitting-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1422) | 🟢 Easy | # Join our discussion! From 4309da74ab720d0a5f9067ffaf0cef9530f4b4dd Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 2 Jan 2025 00:30:04 +0000 Subject: [PATCH 200/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3978ce7..ef94d86 100644 --- a/README.md +++ b/README.md @@ -196,6 +196,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 30, 2024 | [2466](https://leetcode.com/problems/count-ways-to-build-good-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2466) | 🟡 Medium | | December 31, 2024 | [983](https://leetcode.com/problems/minimum-cost-for-tickets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/983) | 🟡 Medium | | January 1, 2025 | [1422](https://leetcode.com/problems/maximum-score-after-splitting-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1422) | 🟢 Easy | +| January 2, 2025 | [2559](https://leetcode.com/problems/count-vowel-strings-in-ranges/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2559) | 🟡 Medium | # Join our discussion! From 1ec10cfdd56c41e972d4436aff5bb15c73a299a8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 3 Jan 2025 00:30:16 +0000 Subject: [PATCH 201/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ef94d86..70c1e89 100644 --- a/README.md +++ b/README.md @@ -197,6 +197,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | December 31, 2024 | [983](https://leetcode.com/problems/minimum-cost-for-tickets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/983) | 🟡 Medium | | January 1, 2025 | [1422](https://leetcode.com/problems/maximum-score-after-splitting-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1422) | 🟢 Easy | | January 2, 2025 | [2559](https://leetcode.com/problems/count-vowel-strings-in-ranges/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2559) | 🟡 Medium | +| January 3, 2025 | [2270](https://leetcode.com/problems/number-of-ways-to-split-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2270) | 🟡 Medium | # Join our discussion! From 0d5390c7f6773bf62416cf0c63dda49f060a0f06 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 4 Jan 2025 00:29:40 +0000 Subject: [PATCH 202/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 70c1e89..597bac5 100644 --- a/README.md +++ b/README.md @@ -198,6 +198,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 1, 2025 | [1422](https://leetcode.com/problems/maximum-score-after-splitting-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1422) | 🟢 Easy | | January 2, 2025 | [2559](https://leetcode.com/problems/count-vowel-strings-in-ranges/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2559) | 🟡 Medium | | January 3, 2025 | [2270](https://leetcode.com/problems/number-of-ways-to-split-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2270) | 🟡 Medium | +| January 4, 2025 | [1930](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1930) | 🟡 Medium | # Join our discussion! From 37b58e0c704de508d5f8856f1d85a57e04fc6d75 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 5 Jan 2025 00:33:37 +0000 Subject: [PATCH 203/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 597bac5..367ac38 100644 --- a/README.md +++ b/README.md @@ -199,6 +199,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 2, 2025 | [2559](https://leetcode.com/problems/count-vowel-strings-in-ranges/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2559) | 🟡 Medium | | January 3, 2025 | [2270](https://leetcode.com/problems/number-of-ways-to-split-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2270) | 🟡 Medium | | January 4, 2025 | [1930](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1930) | 🟡 Medium | +| January 5, 2025 | [2381](https://leetcode.com/problems/shifting-letters-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2381) | 🟡 Medium | # Join our discussion! From 972510526cf1ac06ac1c38ad4c84a961a46ba3da Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 6 Jan 2025 00:32:18 +0000 Subject: [PATCH 204/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 367ac38..5eb9822 100644 --- a/README.md +++ b/README.md @@ -200,6 +200,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 3, 2025 | [2270](https://leetcode.com/problems/number-of-ways-to-split-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2270) | 🟡 Medium | | January 4, 2025 | [1930](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1930) | 🟡 Medium | | January 5, 2025 | [2381](https://leetcode.com/problems/shifting-letters-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2381) | 🟡 Medium | +| January 6, 2025 | [1769](https://leetcode.com/problems/minimum-number-of-operations-to-move-all-balls-to-each-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1769) | 🟡 Medium | # Join our discussion! From 83cb222735ff39fea5914bcf5f4c08b1677dd10b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 7 Jan 2025 00:30:47 +0000 Subject: [PATCH 205/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5eb9822..4445dc4 100644 --- a/README.md +++ b/README.md @@ -201,6 +201,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 4, 2025 | [1930](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1930) | 🟡 Medium | | January 5, 2025 | [2381](https://leetcode.com/problems/shifting-letters-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2381) | 🟡 Medium | | January 6, 2025 | [1769](https://leetcode.com/problems/minimum-number-of-operations-to-move-all-balls-to-each-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1769) | 🟡 Medium | +| January 7, 2025 | [1408](https://leetcode.com/problems/string-matching-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1408) | 🟢 Easy | # Join our discussion! From 98abd67f9b078d3369c6202268ae6691e3c286fc Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 8 Jan 2025 00:30:39 +0000 Subject: [PATCH 206/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4445dc4..b4e837d 100644 --- a/README.md +++ b/README.md @@ -202,6 +202,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 5, 2025 | [2381](https://leetcode.com/problems/shifting-letters-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2381) | 🟡 Medium | | January 6, 2025 | [1769](https://leetcode.com/problems/minimum-number-of-operations-to-move-all-balls-to-each-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1769) | 🟡 Medium | | January 7, 2025 | [1408](https://leetcode.com/problems/string-matching-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1408) | 🟢 Easy | +| January 8, 2025 | [3042](https://leetcode.com/problems/count-prefix-and-suffix-pairs-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3042) | 🟢 Easy | # Join our discussion! From 5f5796013a956ef14fa38eebdab38276415bc89f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 9 Jan 2025 00:30:35 +0000 Subject: [PATCH 207/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b4e837d..ebf35c9 100644 --- a/README.md +++ b/README.md @@ -203,6 +203,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 6, 2025 | [1769](https://leetcode.com/problems/minimum-number-of-operations-to-move-all-balls-to-each-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1769) | 🟡 Medium | | January 7, 2025 | [1408](https://leetcode.com/problems/string-matching-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1408) | 🟢 Easy | | January 8, 2025 | [3042](https://leetcode.com/problems/count-prefix-and-suffix-pairs-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3042) | 🟢 Easy | +| January 9, 2025 | [2185](https://leetcode.com/problems/counting-words-with-a-given-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2185) | 🟢 Easy | # Join our discussion! From c323a7dfa55779edfee93c4df30fbc2a8fbf151c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 10 Jan 2025 00:31:17 +0000 Subject: [PATCH 208/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ebf35c9..f6b9d21 100644 --- a/README.md +++ b/README.md @@ -204,6 +204,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 7, 2025 | [1408](https://leetcode.com/problems/string-matching-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1408) | 🟢 Easy | | January 8, 2025 | [3042](https://leetcode.com/problems/count-prefix-and-suffix-pairs-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3042) | 🟢 Easy | | January 9, 2025 | [2185](https://leetcode.com/problems/counting-words-with-a-given-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2185) | 🟢 Easy | +| January 10, 2025 | [916](https://leetcode.com/problems/word-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/916) | 🟡 Medium | # Join our discussion! From bc9fcf80e6be7b1de4addf158fa38b8faab62371 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 11 Jan 2025 00:30:33 +0000 Subject: [PATCH 209/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f6b9d21..afe45ef 100644 --- a/README.md +++ b/README.md @@ -205,6 +205,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 8, 2025 | [3042](https://leetcode.com/problems/count-prefix-and-suffix-pairs-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3042) | 🟢 Easy | | January 9, 2025 | [2185](https://leetcode.com/problems/counting-words-with-a-given-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2185) | 🟢 Easy | | January 10, 2025 | [916](https://leetcode.com/problems/word-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/916) | 🟡 Medium | +| January 11, 2025 | [1400](https://leetcode.com/problems/construct-k-palindrome-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1400) | 🟡 Medium | # Join our discussion! From 4cb38c1c4bdd7b34e162bdafca7cc8396c01394b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 12 Jan 2025 00:34:00 +0000 Subject: [PATCH 210/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index afe45ef..a189c10 100644 --- a/README.md +++ b/README.md @@ -206,6 +206,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 9, 2025 | [2185](https://leetcode.com/problems/counting-words-with-a-given-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2185) | 🟢 Easy | | January 10, 2025 | [916](https://leetcode.com/problems/word-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/916) | 🟡 Medium | | January 11, 2025 | [1400](https://leetcode.com/problems/construct-k-palindrome-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1400) | 🟡 Medium | +| January 12, 2025 | [2116](https://leetcode.com/problems/check-if-a-parentheses-string-can-be-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2116) | 🟡 Medium | # Join our discussion! From 15827c51998fa58f83d03b17975900f843c1f622 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 13 Jan 2025 00:33:09 +0000 Subject: [PATCH 211/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a189c10..e84bee8 100644 --- a/README.md +++ b/README.md @@ -207,6 +207,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 10, 2025 | [916](https://leetcode.com/problems/word-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/916) | 🟡 Medium | | January 11, 2025 | [1400](https://leetcode.com/problems/construct-k-palindrome-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1400) | 🟡 Medium | | January 12, 2025 | [2116](https://leetcode.com/problems/check-if-a-parentheses-string-can-be-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2116) | 🟡 Medium | +| January 13, 2025 | [3223](https://leetcode.com/problems/minimum-length-of-string-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3223) | 🟡 Medium | # Join our discussion! From f95e79d53eec86eb0c47dffb9952d6c59b2cbd38 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 14 Jan 2025 00:29:10 +0000 Subject: [PATCH 212/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e84bee8..81889d7 100644 --- a/README.md +++ b/README.md @@ -208,6 +208,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 11, 2025 | [1400](https://leetcode.com/problems/construct-k-palindrome-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1400) | 🟡 Medium | | January 12, 2025 | [2116](https://leetcode.com/problems/check-if-a-parentheses-string-can-be-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2116) | 🟡 Medium | | January 13, 2025 | [3223](https://leetcode.com/problems/minimum-length-of-string-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3223) | 🟡 Medium | +| January 14, 2025 | [2657](https://leetcode.com/problems/find-the-prefix-common-array-of-two-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2657) | 🟡 Medium | # Join our discussion! From 84fba6aa8210374410d7f4e61eab26586d596de7 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 15 Jan 2025 00:29:57 +0000 Subject: [PATCH 213/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 81889d7..6c75d3c 100644 --- a/README.md +++ b/README.md @@ -209,6 +209,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 12, 2025 | [2116](https://leetcode.com/problems/check-if-a-parentheses-string-can-be-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2116) | 🟡 Medium | | January 13, 2025 | [3223](https://leetcode.com/problems/minimum-length-of-string-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3223) | 🟡 Medium | | January 14, 2025 | [2657](https://leetcode.com/problems/find-the-prefix-common-array-of-two-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2657) | 🟡 Medium | +| January 15, 2025 | [2429](https://leetcode.com/problems/minimize-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2429) | 🟡 Medium | # Join our discussion! From 990adfa6b297f47458bca3e28a72a482b085c9eb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 16 Jan 2025 00:29:42 +0000 Subject: [PATCH 214/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6c75d3c..4b06b8d 100644 --- a/README.md +++ b/README.md @@ -210,6 +210,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 13, 2025 | [3223](https://leetcode.com/problems/minimum-length-of-string-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3223) | 🟡 Medium | | January 14, 2025 | [2657](https://leetcode.com/problems/find-the-prefix-common-array-of-two-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2657) | 🟡 Medium | | January 15, 2025 | [2429](https://leetcode.com/problems/minimize-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2429) | 🟡 Medium | +| January 16, 2025 | [2425](https://leetcode.com/problems/bitwise-xor-of-all-pairings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2425) | 🟡 Medium | # Join our discussion! From 84a145518db1503d26607336d6edc4d9b35daa25 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 17 Jan 2025 00:29:33 +0000 Subject: [PATCH 215/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4b06b8d..7fd4105 100644 --- a/README.md +++ b/README.md @@ -211,6 +211,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 14, 2025 | [2657](https://leetcode.com/problems/find-the-prefix-common-array-of-two-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2657) | 🟡 Medium | | January 15, 2025 | [2429](https://leetcode.com/problems/minimize-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2429) | 🟡 Medium | | January 16, 2025 | [2425](https://leetcode.com/problems/bitwise-xor-of-all-pairings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2425) | 🟡 Medium | +| January 17, 2025 | [2683](https://leetcode.com/problems/neighboring-bitwise-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2683) | 🟡 Medium | # Join our discussion! From 6f2f669d2534a89734568ff084d2f81ca15bdbdb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 18 Jan 2025 00:28:35 +0000 Subject: [PATCH 216/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7fd4105..f7e7d5b 100644 --- a/README.md +++ b/README.md @@ -212,6 +212,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 15, 2025 | [2429](https://leetcode.com/problems/minimize-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2429) | 🟡 Medium | | January 16, 2025 | [2425](https://leetcode.com/problems/bitwise-xor-of-all-pairings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2425) | 🟡 Medium | | January 17, 2025 | [2683](https://leetcode.com/problems/neighboring-bitwise-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2683) | 🟡 Medium | +| January 18, 2025 | [1368](https://leetcode.com/problems/minimum-cost-to-make-at-least-one-valid-path-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1368) | 🔴 Hard | # Join our discussion! From 5504b12795f22b0ff024a611166e9b3c5f4a85fa Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 19 Jan 2025 00:32:31 +0000 Subject: [PATCH 217/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f7e7d5b..bd11d8c 100644 --- a/README.md +++ b/README.md @@ -213,6 +213,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 16, 2025 | [2425](https://leetcode.com/problems/bitwise-xor-of-all-pairings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2425) | 🟡 Medium | | January 17, 2025 | [2683](https://leetcode.com/problems/neighboring-bitwise-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2683) | 🟡 Medium | | January 18, 2025 | [1368](https://leetcode.com/problems/minimum-cost-to-make-at-least-one-valid-path-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1368) | 🔴 Hard | +| January 19, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | # Join our discussion! From dda7ef263de38501e87a9a84aa586dd45747bec4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 20 Jan 2025 00:30:41 +0000 Subject: [PATCH 218/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index bd11d8c..2cac4f3 100644 --- a/README.md +++ b/README.md @@ -214,6 +214,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 17, 2025 | [2683](https://leetcode.com/problems/neighboring-bitwise-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2683) | 🟡 Medium | | January 18, 2025 | [1368](https://leetcode.com/problems/minimum-cost-to-make-at-least-one-valid-path-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1368) | 🔴 Hard | | January 19, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | +| January 20, 2025 | [2661](https://leetcode.com/problems/first-completely-painted-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2661) | 🟡 Medium | # Join our discussion! From 50c69513a921380710bc94aaa94d8c36c68aeeae Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 21 Jan 2025 00:29:22 +0000 Subject: [PATCH 219/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2cac4f3..3653c59 100644 --- a/README.md +++ b/README.md @@ -215,6 +215,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 18, 2025 | [1368](https://leetcode.com/problems/minimum-cost-to-make-at-least-one-valid-path-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1368) | 🔴 Hard | | January 19, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | | January 20, 2025 | [2661](https://leetcode.com/problems/first-completely-painted-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2661) | 🟡 Medium | +| January 21, 2025 | [2017](https://leetcode.com/problems/grid-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2017) | 🟡 Medium | # Join our discussion! From f3642685f755048e7fbb43b6940f39c1103939a5 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 22 Jan 2025 00:30:10 +0000 Subject: [PATCH 220/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3653c59..13c76cd 100644 --- a/README.md +++ b/README.md @@ -216,6 +216,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 19, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | | January 20, 2025 | [2661](https://leetcode.com/problems/first-completely-painted-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2661) | 🟡 Medium | | January 21, 2025 | [2017](https://leetcode.com/problems/grid-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2017) | 🟡 Medium | +| January 22, 2025 | [1765](https://leetcode.com/problems/map-of-highest-peak/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1765) | 🟡 Medium | # Join our discussion! From 2763803acbfb21e12fe7a03d52ad5ee224b02176 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 23 Jan 2025 00:29:46 +0000 Subject: [PATCH 221/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 13c76cd..f0db627 100644 --- a/README.md +++ b/README.md @@ -217,6 +217,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 20, 2025 | [2661](https://leetcode.com/problems/first-completely-painted-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2661) | 🟡 Medium | | January 21, 2025 | [2017](https://leetcode.com/problems/grid-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2017) | 🟡 Medium | | January 22, 2025 | [1765](https://leetcode.com/problems/map-of-highest-peak/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1765) | 🟡 Medium | +| January 23, 2025 | [1267](https://leetcode.com/problems/count-servers-that-communicate/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1267) | 🟡 Medium | # Join our discussion! From 6b856b9d56f16fdc5a5479efa7ef6e0a2ca24389 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 24 Jan 2025 00:29:48 +0000 Subject: [PATCH 222/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f0db627..9ecb60a 100644 --- a/README.md +++ b/README.md @@ -218,6 +218,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 21, 2025 | [2017](https://leetcode.com/problems/grid-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2017) | 🟡 Medium | | January 22, 2025 | [1765](https://leetcode.com/problems/map-of-highest-peak/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1765) | 🟡 Medium | | January 23, 2025 | [1267](https://leetcode.com/problems/count-servers-that-communicate/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1267) | 🟡 Medium | +| January 24, 2025 | [802](https://leetcode.com/problems/find-eventual-safe-states/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/802) | 🟡 Medium | # Join our discussion! From c3aff7e3814bee799b23756bf0ed06f68bc703e9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 25 Jan 2025 00:29:03 +0000 Subject: [PATCH 223/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9ecb60a..f6d9f89 100644 --- a/README.md +++ b/README.md @@ -219,6 +219,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 22, 2025 | [1765](https://leetcode.com/problems/map-of-highest-peak/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1765) | 🟡 Medium | | January 23, 2025 | [1267](https://leetcode.com/problems/count-servers-that-communicate/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1267) | 🟡 Medium | | January 24, 2025 | [802](https://leetcode.com/problems/find-eventual-safe-states/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/802) | 🟡 Medium | +| January 25, 2025 | [2948](https://leetcode.com/problems/make-lexicographically-smallest-array-by-swapping-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2948) | 🟡 Medium | # Join our discussion! From 658ae40cd6c181dfbcc29316b6b56a75174f8e5e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 26 Jan 2025 00:30:31 +0000 Subject: [PATCH 224/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f6d9f89..4c4be81 100644 --- a/README.md +++ b/README.md @@ -220,6 +220,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 23, 2025 | [1267](https://leetcode.com/problems/count-servers-that-communicate/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1267) | 🟡 Medium | | January 24, 2025 | [802](https://leetcode.com/problems/find-eventual-safe-states/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/802) | 🟡 Medium | | January 25, 2025 | [2948](https://leetcode.com/problems/make-lexicographically-smallest-array-by-swapping-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2948) | 🟡 Medium | +| January 26, 2025 | [2127](https://leetcode.com/problems/maximum-employees-to-be-invited-to-a-meeting/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2127) | 🔴 Hard | # Join our discussion! From 4d4d11a97a839be04c0416e71f709e9e572b3496 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 27 Jan 2025 00:31:08 +0000 Subject: [PATCH 225/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4c4be81..d9e6ee8 100644 --- a/README.md +++ b/README.md @@ -221,6 +221,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 24, 2025 | [802](https://leetcode.com/problems/find-eventual-safe-states/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/802) | 🟡 Medium | | January 25, 2025 | [2948](https://leetcode.com/problems/make-lexicographically-smallest-array-by-swapping-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2948) | 🟡 Medium | | January 26, 2025 | [2127](https://leetcode.com/problems/maximum-employees-to-be-invited-to-a-meeting/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2127) | 🔴 Hard | +| January 27, 2025 | [1462](https://leetcode.com/problems/course-schedule-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1462) | 🟡 Medium | # Join our discussion! From 326caaceb3f544918d95a40c309790ea8d8de404 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 28 Jan 2025 00:30:02 +0000 Subject: [PATCH 226/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d9e6ee8..27b8ef4 100644 --- a/README.md +++ b/README.md @@ -222,6 +222,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 25, 2025 | [2948](https://leetcode.com/problems/make-lexicographically-smallest-array-by-swapping-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2948) | 🟡 Medium | | January 26, 2025 | [2127](https://leetcode.com/problems/maximum-employees-to-be-invited-to-a-meeting/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2127) | 🔴 Hard | | January 27, 2025 | [1462](https://leetcode.com/problems/course-schedule-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1462) | 🟡 Medium | +| January 28, 2025 | [2658](https://leetcode.com/problems/maximum-number-of-fish-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2658) | 🟡 Medium | # Join our discussion! From 2c2584e45a457d966c7af68652ceafe3fac3128e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 29 Jan 2025 00:29:56 +0000 Subject: [PATCH 227/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 27b8ef4..1a302af 100644 --- a/README.md +++ b/README.md @@ -223,6 +223,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 26, 2025 | [2127](https://leetcode.com/problems/maximum-employees-to-be-invited-to-a-meeting/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2127) | 🔴 Hard | | January 27, 2025 | [1462](https://leetcode.com/problems/course-schedule-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1462) | 🟡 Medium | | January 28, 2025 | [2658](https://leetcode.com/problems/maximum-number-of-fish-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2658) | 🟡 Medium | +| January 29, 2025 | [684](https://leetcode.com/problems/redundant-connection/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/684) | 🟡 Medium | # Join our discussion! From dd3f401ae976e01026c1c7a24dae0bb205eceaff Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 30 Jan 2025 00:29:23 +0000 Subject: [PATCH 228/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1a302af..e763a7f 100644 --- a/README.md +++ b/README.md @@ -224,6 +224,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 27, 2025 | [1462](https://leetcode.com/problems/course-schedule-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1462) | 🟡 Medium | | January 28, 2025 | [2658](https://leetcode.com/problems/maximum-number-of-fish-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2658) | 🟡 Medium | | January 29, 2025 | [684](https://leetcode.com/problems/redundant-connection/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/684) | 🟡 Medium | +| January 30, 2025 | [2493](https://leetcode.com/problems/divide-nodes-into-the-maximum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2493) | 🔴 Hard | # Join our discussion! From b3409a3e3ccc07a5ea2f36736a564366e14c55ff Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 31 Jan 2025 00:29:53 +0000 Subject: [PATCH 229/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e763a7f..c26e18e 100644 --- a/README.md +++ b/README.md @@ -225,6 +225,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 28, 2025 | [2658](https://leetcode.com/problems/maximum-number-of-fish-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2658) | 🟡 Medium | | January 29, 2025 | [684](https://leetcode.com/problems/redundant-connection/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/684) | 🟡 Medium | | January 30, 2025 | [2493](https://leetcode.com/problems/divide-nodes-into-the-maximum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2493) | 🔴 Hard | +| January 31, 2025 | [827](https://leetcode.com/problems/making-a-large-island/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/827) | 🔴 Hard | # Join our discussion! From 7285368284322666977a9eeb0e66f248d50836d2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 1 Feb 2025 00:32:30 +0000 Subject: [PATCH 230/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c26e18e..0d4e0fa 100644 --- a/README.md +++ b/README.md @@ -226,6 +226,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 29, 2025 | [684](https://leetcode.com/problems/redundant-connection/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/684) | 🟡 Medium | | January 30, 2025 | [2493](https://leetcode.com/problems/divide-nodes-into-the-maximum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2493) | 🔴 Hard | | January 31, 2025 | [827](https://leetcode.com/problems/making-a-large-island/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/827) | 🔴 Hard | +| February 1, 2025 | [3151](https://leetcode.com/problems/special-array-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3151) | 🟢 Easy | # Join our discussion! From 5fa878ef8ec2cc1791ec2662bcf62866f5a635ba Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 2 Feb 2025 00:32:08 +0000 Subject: [PATCH 231/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0d4e0fa..2170d82 100644 --- a/README.md +++ b/README.md @@ -227,6 +227,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 30, 2025 | [2493](https://leetcode.com/problems/divide-nodes-into-the-maximum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2493) | 🔴 Hard | | January 31, 2025 | [827](https://leetcode.com/problems/making-a-large-island/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/827) | 🔴 Hard | | February 1, 2025 | [3151](https://leetcode.com/problems/special-array-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3151) | 🟢 Easy | +| February 2, 2025 | [1752](https://leetcode.com/problems/check-if-array-is-sorted-and-rotated/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1752) | 🟢 Easy | # Join our discussion! From f72b8967a05026356a68d597d2ae675b5336cffb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 3 Feb 2025 00:31:00 +0000 Subject: [PATCH 232/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2170d82..b6b2845 100644 --- a/README.md +++ b/README.md @@ -228,6 +228,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | January 31, 2025 | [827](https://leetcode.com/problems/making-a-large-island/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/827) | 🔴 Hard | | February 1, 2025 | [3151](https://leetcode.com/problems/special-array-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3151) | 🟢 Easy | | February 2, 2025 | [1752](https://leetcode.com/problems/check-if-array-is-sorted-and-rotated/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1752) | 🟢 Easy | +| February 3, 2025 | [3105](https://leetcode.com/problems/longest-strictly-increasing-or-strictly-decreasing-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3105) | 🟢 Easy | # Join our discussion! From 8507c84619a879b14b52f7a709bfc963b1b26ec1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 4 Feb 2025 00:29:44 +0000 Subject: [PATCH 233/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b6b2845..a2c096b 100644 --- a/README.md +++ b/README.md @@ -229,6 +229,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 1, 2025 | [3151](https://leetcode.com/problems/special-array-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3151) | 🟢 Easy | | February 2, 2025 | [1752](https://leetcode.com/problems/check-if-array-is-sorted-and-rotated/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1752) | 🟢 Easy | | February 3, 2025 | [3105](https://leetcode.com/problems/longest-strictly-increasing-or-strictly-decreasing-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3105) | 🟢 Easy | +| February 4, 2025 | [1800](https://leetcode.com/problems/maximum-ascending-subarray-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1800) | 🟢 Easy | # Join our discussion! From eaa371177b09e1cc6194e4e6f621f7f26da62cf0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 5 Feb 2025 00:30:15 +0000 Subject: [PATCH 234/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a2c096b..d8fb12b 100644 --- a/README.md +++ b/README.md @@ -230,6 +230,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 2, 2025 | [1752](https://leetcode.com/problems/check-if-array-is-sorted-and-rotated/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1752) | 🟢 Easy | | February 3, 2025 | [3105](https://leetcode.com/problems/longest-strictly-increasing-or-strictly-decreasing-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3105) | 🟢 Easy | | February 4, 2025 | [1800](https://leetcode.com/problems/maximum-ascending-subarray-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1800) | 🟢 Easy | +| February 5, 2025 | [1790](https://leetcode.com/problems/check-if-one-string-swap-can-make-strings-equal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1790) | 🟢 Easy | # Join our discussion! From 4a5c26dec6d2ebcb3db42bc91df2cb8a20334269 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 6 Feb 2025 00:30:31 +0000 Subject: [PATCH 235/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d8fb12b..a43e8b5 100644 --- a/README.md +++ b/README.md @@ -231,6 +231,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 3, 2025 | [3105](https://leetcode.com/problems/longest-strictly-increasing-or-strictly-decreasing-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3105) | 🟢 Easy | | February 4, 2025 | [1800](https://leetcode.com/problems/maximum-ascending-subarray-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1800) | 🟢 Easy | | February 5, 2025 | [1790](https://leetcode.com/problems/check-if-one-string-swap-can-make-strings-equal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1790) | 🟢 Easy | +| February 6, 2025 | [1726](https://leetcode.com/problems/tuple-with-same-product/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1726) | 🟡 Medium | # Join our discussion! From fe3721c93a4ca9f6dbe335b17766f8673ae8e41c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 7 Feb 2025 00:30:21 +0000 Subject: [PATCH 236/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a43e8b5..0df2123 100644 --- a/README.md +++ b/README.md @@ -232,6 +232,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 4, 2025 | [1800](https://leetcode.com/problems/maximum-ascending-subarray-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1800) | 🟢 Easy | | February 5, 2025 | [1790](https://leetcode.com/problems/check-if-one-string-swap-can-make-strings-equal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1790) | 🟢 Easy | | February 6, 2025 | [1726](https://leetcode.com/problems/tuple-with-same-product/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1726) | 🟡 Medium | +| February 7, 2025 | [3160](https://leetcode.com/problems/find-the-number-of-distinct-colors-among-the-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3160) | 🟡 Medium | # Join our discussion! From c593ea296d3f58864e679a767953912e13822d1b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 8 Feb 2025 00:29:19 +0000 Subject: [PATCH 237/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0df2123..4fb6ced 100644 --- a/README.md +++ b/README.md @@ -233,6 +233,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 5, 2025 | [1790](https://leetcode.com/problems/check-if-one-string-swap-can-make-strings-equal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1790) | 🟢 Easy | | February 6, 2025 | [1726](https://leetcode.com/problems/tuple-with-same-product/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1726) | 🟡 Medium | | February 7, 2025 | [3160](https://leetcode.com/problems/find-the-number-of-distinct-colors-among-the-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3160) | 🟡 Medium | +| February 8, 2025 | [2349](https://leetcode.com/problems/design-a-number-container-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2349) | 🟡 Medium | # Join our discussion! From 7cb3c6b033ebad21d91f1357902530caad4e6dd2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 9 Feb 2025 00:32:46 +0000 Subject: [PATCH 238/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4fb6ced..b09a26f 100644 --- a/README.md +++ b/README.md @@ -234,6 +234,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 6, 2025 | [1726](https://leetcode.com/problems/tuple-with-same-product/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1726) | 🟡 Medium | | February 7, 2025 | [3160](https://leetcode.com/problems/find-the-number-of-distinct-colors-among-the-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3160) | 🟡 Medium | | February 8, 2025 | [2349](https://leetcode.com/problems/design-a-number-container-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2349) | 🟡 Medium | +| February 9, 2025 | [2364](https://leetcode.com/problems/count-number-of-bad-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2364) | 🟡 Medium | # Join our discussion! From b9372edfc9bc68a31d2648935cfd654045018aa7 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 10 Feb 2025 00:31:39 +0000 Subject: [PATCH 239/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b09a26f..33f29e8 100644 --- a/README.md +++ b/README.md @@ -235,6 +235,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 7, 2025 | [3160](https://leetcode.com/problems/find-the-number-of-distinct-colors-among-the-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3160) | 🟡 Medium | | February 8, 2025 | [2349](https://leetcode.com/problems/design-a-number-container-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2349) | 🟡 Medium | | February 9, 2025 | [2364](https://leetcode.com/problems/count-number-of-bad-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2364) | 🟡 Medium | +| February 10, 2025 | [3174](https://leetcode.com/problems/clear-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3174) | 🟢 Easy | # Join our discussion! From 30522601f454b39dd3be589144a365bd382033a9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 11 Feb 2025 00:30:25 +0000 Subject: [PATCH 240/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 33f29e8..3332c72 100644 --- a/README.md +++ b/README.md @@ -236,6 +236,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 8, 2025 | [2349](https://leetcode.com/problems/design-a-number-container-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2349) | 🟡 Medium | | February 9, 2025 | [2364](https://leetcode.com/problems/count-number-of-bad-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2364) | 🟡 Medium | | February 10, 2025 | [3174](https://leetcode.com/problems/clear-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3174) | 🟢 Easy | +| February 11, 2025 | [1910](https://leetcode.com/problems/remove-all-occurrences-of-a-substring/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1910) | 🟡 Medium | # Join our discussion! From 4a75b2cb03d94696cc3e89706af4761181859f3d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 12 Feb 2025 00:30:22 +0000 Subject: [PATCH 241/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3332c72..c343e18 100644 --- a/README.md +++ b/README.md @@ -237,6 +237,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 9, 2025 | [2364](https://leetcode.com/problems/count-number-of-bad-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2364) | 🟡 Medium | | February 10, 2025 | [3174](https://leetcode.com/problems/clear-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3174) | 🟢 Easy | | February 11, 2025 | [1910](https://leetcode.com/problems/remove-all-occurrences-of-a-substring/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1910) | 🟡 Medium | +| February 12, 2025 | [2342](https://leetcode.com/problems/max-sum-of-a-pair-with-equal-sum-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2342) | 🟡 Medium | # Join our discussion! From 5c73c0978f3da6cd0861a2a377f55cabbb4bf7f4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 13 Feb 2025 00:30:22 +0000 Subject: [PATCH 242/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c343e18..305ea5d 100644 --- a/README.md +++ b/README.md @@ -238,6 +238,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 10, 2025 | [3174](https://leetcode.com/problems/clear-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3174) | 🟢 Easy | | February 11, 2025 | [1910](https://leetcode.com/problems/remove-all-occurrences-of-a-substring/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1910) | 🟡 Medium | | February 12, 2025 | [2342](https://leetcode.com/problems/max-sum-of-a-pair-with-equal-sum-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2342) | 🟡 Medium | +| February 13, 2025 | [3066](https://leetcode.com/problems/minimum-operations-to-exceed-threshold-value-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3066) | 🟡 Medium | # Join our discussion! From ac5d6aa9fe0283e71a9ac60288ec9995df85344f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 14 Feb 2025 00:30:24 +0000 Subject: [PATCH 243/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 305ea5d..79d12ce 100644 --- a/README.md +++ b/README.md @@ -239,6 +239,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 11, 2025 | [1910](https://leetcode.com/problems/remove-all-occurrences-of-a-substring/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1910) | 🟡 Medium | | February 12, 2025 | [2342](https://leetcode.com/problems/max-sum-of-a-pair-with-equal-sum-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2342) | 🟡 Medium | | February 13, 2025 | [3066](https://leetcode.com/problems/minimum-operations-to-exceed-threshold-value-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3066) | 🟡 Medium | +| February 14, 2025 | [1352](https://leetcode.com/problems/product-of-the-last-k-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1352) | 🟡 Medium | # Join our discussion! From 1bc1b9c162d733dc0acaf3ca45ca24be2ca8df7f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 15 Feb 2025 00:29:59 +0000 Subject: [PATCH 244/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 79d12ce..d3b06ed 100644 --- a/README.md +++ b/README.md @@ -240,6 +240,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 12, 2025 | [2342](https://leetcode.com/problems/max-sum-of-a-pair-with-equal-sum-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2342) | 🟡 Medium | | February 13, 2025 | [3066](https://leetcode.com/problems/minimum-operations-to-exceed-threshold-value-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3066) | 🟡 Medium | | February 14, 2025 | [1352](https://leetcode.com/problems/product-of-the-last-k-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1352) | 🟡 Medium | +| February 15, 2025 | [2698](https://leetcode.com/problems/find-the-punishment-number-of-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2698) | 🟡 Medium | # Join our discussion! From db730be069be83ed6759f68fbe56adc0724ca616 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 16 Feb 2025 00:33:37 +0000 Subject: [PATCH 245/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d3b06ed..e4b7f96 100644 --- a/README.md +++ b/README.md @@ -241,6 +241,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 13, 2025 | [3066](https://leetcode.com/problems/minimum-operations-to-exceed-threshold-value-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3066) | 🟡 Medium | | February 14, 2025 | [1352](https://leetcode.com/problems/product-of-the-last-k-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1352) | 🟡 Medium | | February 15, 2025 | [2698](https://leetcode.com/problems/find-the-punishment-number-of-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2698) | 🟡 Medium | +| February 16, 2025 | [1718](https://leetcode.com/problems/construct-the-lexicographically-largest-valid-sequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1718) | 🟡 Medium | # Join our discussion! From 541ad67c63bdcd771ff326496a1be53055264157 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 17 Feb 2025 00:32:32 +0000 Subject: [PATCH 246/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e4b7f96..5698abf 100644 --- a/README.md +++ b/README.md @@ -242,6 +242,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 14, 2025 | [1352](https://leetcode.com/problems/product-of-the-last-k-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1352) | 🟡 Medium | | February 15, 2025 | [2698](https://leetcode.com/problems/find-the-punishment-number-of-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2698) | 🟡 Medium | | February 16, 2025 | [1718](https://leetcode.com/problems/construct-the-lexicographically-largest-valid-sequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1718) | 🟡 Medium | +| February 17, 2025 | [1079](https://leetcode.com/problems/letter-tile-possibilities/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1079) | 🟡 Medium | # Join our discussion! From 6697b86a3af87cf6a06adc9d98c30e5533f44bba Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 18 Feb 2025 00:30:12 +0000 Subject: [PATCH 247/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5698abf..05a2726 100644 --- a/README.md +++ b/README.md @@ -243,6 +243,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 15, 2025 | [2698](https://leetcode.com/problems/find-the-punishment-number-of-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2698) | 🟡 Medium | | February 16, 2025 | [1718](https://leetcode.com/problems/construct-the-lexicographically-largest-valid-sequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1718) | 🟡 Medium | | February 17, 2025 | [1079](https://leetcode.com/problems/letter-tile-possibilities/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1079) | 🟡 Medium | +| February 18, 2025 | [2375](https://leetcode.com/problems/construct-smallest-number-from-di-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2375) | 🟡 Medium | # Join our discussion! From 4b08eb75c121631dc650fd1882ab7f3c7628fb24 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 19 Feb 2025 00:30:29 +0000 Subject: [PATCH 248/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 05a2726..4e5464f 100644 --- a/README.md +++ b/README.md @@ -244,6 +244,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 16, 2025 | [1718](https://leetcode.com/problems/construct-the-lexicographically-largest-valid-sequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1718) | 🟡 Medium | | February 17, 2025 | [1079](https://leetcode.com/problems/letter-tile-possibilities/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1079) | 🟡 Medium | | February 18, 2025 | [2375](https://leetcode.com/problems/construct-smallest-number-from-di-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2375) | 🟡 Medium | +| February 19, 2025 | [1415](https://leetcode.com/problems/the-k-th-lexicographical-string-of-all-happy-strings-of-length-n/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1415) | 🟡 Medium | # Join our discussion! From 50c0f3a4e4d828c46c8a85012da386bc7c93c485 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 20 Feb 2025 00:30:56 +0000 Subject: [PATCH 249/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4e5464f..d3c38d7 100644 --- a/README.md +++ b/README.md @@ -245,6 +245,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 17, 2025 | [1079](https://leetcode.com/problems/letter-tile-possibilities/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1079) | 🟡 Medium | | February 18, 2025 | [2375](https://leetcode.com/problems/construct-smallest-number-from-di-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2375) | 🟡 Medium | | February 19, 2025 | [1415](https://leetcode.com/problems/the-k-th-lexicographical-string-of-all-happy-strings-of-length-n/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1415) | 🟡 Medium | +| February 20, 2025 | [1980](https://leetcode.com/problems/find-unique-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1980) | 🟡 Medium | # Join our discussion! From 73bab1a9c21a2f99af1f12d12b4fcb29684ec070 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 21 Feb 2025 00:30:55 +0000 Subject: [PATCH 250/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d3c38d7..1241907 100644 --- a/README.md +++ b/README.md @@ -246,6 +246,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 18, 2025 | [2375](https://leetcode.com/problems/construct-smallest-number-from-di-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2375) | 🟡 Medium | | February 19, 2025 | [1415](https://leetcode.com/problems/the-k-th-lexicographical-string-of-all-happy-strings-of-length-n/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1415) | 🟡 Medium | | February 20, 2025 | [1980](https://leetcode.com/problems/find-unique-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1980) | 🟡 Medium | +| February 21, 2025 | [1261](https://leetcode.com/problems/find-elements-in-a-contaminated-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1261) | 🟡 Medium | # Join our discussion! From f992238fb8c52dd2c4591503a1da90e4bee7df3c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 22 Feb 2025 00:29:30 +0000 Subject: [PATCH 251/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1241907..aa03ba2 100644 --- a/README.md +++ b/README.md @@ -247,6 +247,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 19, 2025 | [1415](https://leetcode.com/problems/the-k-th-lexicographical-string-of-all-happy-strings-of-length-n/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1415) | 🟡 Medium | | February 20, 2025 | [1980](https://leetcode.com/problems/find-unique-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1980) | 🟡 Medium | | February 21, 2025 | [1261](https://leetcode.com/problems/find-elements-in-a-contaminated-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1261) | 🟡 Medium | +| February 22, 2025 | [1028](https://leetcode.com/problems/recover-a-tree-from-preorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1028) | 🔴 Hard | # Join our discussion! From 5fd2c236aad29aaede9374e8d19f2f188a4aee39 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 23 Feb 2025 00:33:25 +0000 Subject: [PATCH 252/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index aa03ba2..46c674b 100644 --- a/README.md +++ b/README.md @@ -248,6 +248,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 20, 2025 | [1980](https://leetcode.com/problems/find-unique-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1980) | 🟡 Medium | | February 21, 2025 | [1261](https://leetcode.com/problems/find-elements-in-a-contaminated-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1261) | 🟡 Medium | | February 22, 2025 | [1028](https://leetcode.com/problems/recover-a-tree-from-preorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1028) | 🔴 Hard | +| February 23, 2025 | [889](https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/889) | 🟡 Medium | # Join our discussion! From 81b03d70efe6258ae6053d219b6d86515be49a5b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 24 Feb 2025 00:32:14 +0000 Subject: [PATCH 253/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 46c674b..4a08eff 100644 --- a/README.md +++ b/README.md @@ -249,6 +249,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 21, 2025 | [1261](https://leetcode.com/problems/find-elements-in-a-contaminated-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1261) | 🟡 Medium | | February 22, 2025 | [1028](https://leetcode.com/problems/recover-a-tree-from-preorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1028) | 🔴 Hard | | February 23, 2025 | [889](https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/889) | 🟡 Medium | +| February 24, 2025 | [2467](https://leetcode.com/problems/most-profitable-path-in-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2467) | 🟡 Medium | # Join our discussion! From 0ad68c6c0f7cc60c65600e49e98b61025cbf56b5 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 25 Feb 2025 00:31:23 +0000 Subject: [PATCH 254/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4a08eff..74e14f0 100644 --- a/README.md +++ b/README.md @@ -250,6 +250,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 22, 2025 | [1028](https://leetcode.com/problems/recover-a-tree-from-preorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1028) | 🔴 Hard | | February 23, 2025 | [889](https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/889) | 🟡 Medium | | February 24, 2025 | [2467](https://leetcode.com/problems/most-profitable-path-in-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2467) | 🟡 Medium | +| February 25, 2025 | [1524](https://leetcode.com/problems/number-of-sub-arrays-with-odd-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1524) | 🟡 Medium | # Join our discussion! From 179ee3a5250ae944c0bacd15daa0149103321ca9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 26 Feb 2025 00:31:07 +0000 Subject: [PATCH 255/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 74e14f0..f7aebdc 100644 --- a/README.md +++ b/README.md @@ -251,6 +251,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 23, 2025 | [889](https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/889) | 🟡 Medium | | February 24, 2025 | [2467](https://leetcode.com/problems/most-profitable-path-in-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2467) | 🟡 Medium | | February 25, 2025 | [1524](https://leetcode.com/problems/number-of-sub-arrays-with-odd-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1524) | 🟡 Medium | +| February 26, 2025 | [1749](https://leetcode.com/problems/maximum-absolute-sum-of-any-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1749) | 🟡 Medium | # Join our discussion! From da788659d2641b892e76fb4f34c6f914648952e9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 27 Feb 2025 00:31:09 +0000 Subject: [PATCH 256/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f7aebdc..ed8cc25 100644 --- a/README.md +++ b/README.md @@ -252,6 +252,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 24, 2025 | [2467](https://leetcode.com/problems/most-profitable-path-in-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2467) | 🟡 Medium | | February 25, 2025 | [1524](https://leetcode.com/problems/number-of-sub-arrays-with-odd-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1524) | 🟡 Medium | | February 26, 2025 | [1749](https://leetcode.com/problems/maximum-absolute-sum-of-any-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1749) | 🟡 Medium | +| February 27, 2025 | [873](https://leetcode.com/problems/length-of-longest-fibonacci-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/873) | 🟡 Medium | # Join our discussion! From 16fb7bed39c2d50f2c3459f0d7d379285efeff57 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 28 Feb 2025 00:31:10 +0000 Subject: [PATCH 257/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ed8cc25..12441f5 100644 --- a/README.md +++ b/README.md @@ -253,6 +253,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 25, 2025 | [1524](https://leetcode.com/problems/number-of-sub-arrays-with-odd-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1524) | 🟡 Medium | | February 26, 2025 | [1749](https://leetcode.com/problems/maximum-absolute-sum-of-any-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1749) | 🟡 Medium | | February 27, 2025 | [873](https://leetcode.com/problems/length-of-longest-fibonacci-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/873) | 🟡 Medium | +| February 28, 2025 | [1092](https://leetcode.com/problems/shortest-common-supersequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1092) | 🔴 Hard | # Join our discussion! From a8589788d329c48063f4f086edd88191b932ae7f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 1 Mar 2025 00:34:20 +0000 Subject: [PATCH 258/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 12441f5..ea8b6b0 100644 --- a/README.md +++ b/README.md @@ -254,6 +254,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 26, 2025 | [1749](https://leetcode.com/problems/maximum-absolute-sum-of-any-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1749) | 🟡 Medium | | February 27, 2025 | [873](https://leetcode.com/problems/length-of-longest-fibonacci-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/873) | 🟡 Medium | | February 28, 2025 | [1092](https://leetcode.com/problems/shortest-common-supersequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1092) | 🔴 Hard | +| March 1, 2025 | [2460](https://leetcode.com/problems/apply-operations-to-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2460) | 🟢 Easy | # Join our discussion! From 475d6f269c0aa102a8b92afbe7525bae58a4b267 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 2 Mar 2025 00:33:55 +0000 Subject: [PATCH 259/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ea8b6b0..86b216f 100644 --- a/README.md +++ b/README.md @@ -255,6 +255,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 27, 2025 | [873](https://leetcode.com/problems/length-of-longest-fibonacci-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/873) | 🟡 Medium | | February 28, 2025 | [1092](https://leetcode.com/problems/shortest-common-supersequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1092) | 🔴 Hard | | March 1, 2025 | [2460](https://leetcode.com/problems/apply-operations-to-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2460) | 🟢 Easy | +| March 2, 2025 | [2570](https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2570) | 🟢 Easy | # Join our discussion! From 0bf9bd6a643a6ca17e188baf132402feb3d152a3 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 3 Mar 2025 00:33:07 +0000 Subject: [PATCH 260/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 86b216f..26c451a 100644 --- a/README.md +++ b/README.md @@ -256,6 +256,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | February 28, 2025 | [1092](https://leetcode.com/problems/shortest-common-supersequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1092) | 🔴 Hard | | March 1, 2025 | [2460](https://leetcode.com/problems/apply-operations-to-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2460) | 🟢 Easy | | March 2, 2025 | [2570](https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2570) | 🟢 Easy | +| March 3, 2025 | [2161](https://leetcode.com/problems/partition-array-according-to-given-pivot/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2161) | 🟡 Medium | # Join our discussion! From 64df4c776a1faeb44c058cee2ce2ed316444b306 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 4 Mar 2025 00:31:26 +0000 Subject: [PATCH 261/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 26c451a..7da47d3 100644 --- a/README.md +++ b/README.md @@ -257,6 +257,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 1, 2025 | [2460](https://leetcode.com/problems/apply-operations-to-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2460) | 🟢 Easy | | March 2, 2025 | [2570](https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2570) | 🟢 Easy | | March 3, 2025 | [2161](https://leetcode.com/problems/partition-array-according-to-given-pivot/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2161) | 🟡 Medium | +| March 4, 2025 | [1780](https://leetcode.com/problems/check-if-number-is-a-sum-of-powers-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1780) | 🟡 Medium | # Join our discussion! From 95e917db8b3ed752cdc8b5041e7c437b1308fabd Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 5 Mar 2025 00:31:30 +0000 Subject: [PATCH 262/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7da47d3..403b25e 100644 --- a/README.md +++ b/README.md @@ -258,6 +258,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 2, 2025 | [2570](https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2570) | 🟢 Easy | | March 3, 2025 | [2161](https://leetcode.com/problems/partition-array-according-to-given-pivot/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2161) | 🟡 Medium | | March 4, 2025 | [1780](https://leetcode.com/problems/check-if-number-is-a-sum-of-powers-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1780) | 🟡 Medium | +| March 5, 2025 | [2579](https://leetcode.com/problems/count-total-number-of-colored-cells/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2579) | 🟡 Medium | # Join our discussion! From 842623ad51e91af6fa8c11d85a2cd4f6522a8f09 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 6 Mar 2025 00:31:41 +0000 Subject: [PATCH 263/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 403b25e..f7f8c0d 100644 --- a/README.md +++ b/README.md @@ -259,6 +259,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 3, 2025 | [2161](https://leetcode.com/problems/partition-array-according-to-given-pivot/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2161) | 🟡 Medium | | March 4, 2025 | [1780](https://leetcode.com/problems/check-if-number-is-a-sum-of-powers-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1780) | 🟡 Medium | | March 5, 2025 | [2579](https://leetcode.com/problems/count-total-number-of-colored-cells/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2579) | 🟡 Medium | +| March 6, 2025 | [2965](https://leetcode.com/problems/find-missing-and-repeated-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2965) | 🟢 Easy | # Join our discussion! From 15b6c1a4f173fdbd686142d5186bf8f356479145 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 7 Mar 2025 00:31:47 +0000 Subject: [PATCH 264/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f7f8c0d..c9fae6d 100644 --- a/README.md +++ b/README.md @@ -260,6 +260,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 4, 2025 | [1780](https://leetcode.com/problems/check-if-number-is-a-sum-of-powers-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1780) | 🟡 Medium | | March 5, 2025 | [2579](https://leetcode.com/problems/count-total-number-of-colored-cells/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2579) | 🟡 Medium | | March 6, 2025 | [2965](https://leetcode.com/problems/find-missing-and-repeated-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2965) | 🟢 Easy | +| March 7, 2025 | [2523](https://leetcode.com/problems/closest-prime-numbers-in-range/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2523) | 🟡 Medium | # Join our discussion! From a4d0507e76b27c96b5100c9b2fda660df3c9b3c0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 8 Mar 2025 00:25:36 +0000 Subject: [PATCH 265/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c9fae6d..1ec9670 100644 --- a/README.md +++ b/README.md @@ -261,6 +261,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 5, 2025 | [2579](https://leetcode.com/problems/count-total-number-of-colored-cells/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2579) | 🟡 Medium | | March 6, 2025 | [2965](https://leetcode.com/problems/find-missing-and-repeated-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2965) | 🟢 Easy | | March 7, 2025 | [2523](https://leetcode.com/problems/closest-prime-numbers-in-range/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2523) | 🟡 Medium | +| March 8, 2025 | [2379](https://leetcode.com/problems/minimum-recolors-to-get-k-consecutive-black-blocks/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2379) | 🟢 Easy | # Join our discussion! From 9e2489e404c9af4ebe3f93e4114beb7d6615ec44 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 9 Mar 2025 00:28:33 +0000 Subject: [PATCH 266/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1ec9670..7746074 100644 --- a/README.md +++ b/README.md @@ -262,6 +262,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 6, 2025 | [2965](https://leetcode.com/problems/find-missing-and-repeated-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2965) | 🟢 Easy | | March 7, 2025 | [2523](https://leetcode.com/problems/closest-prime-numbers-in-range/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2523) | 🟡 Medium | | March 8, 2025 | [2379](https://leetcode.com/problems/minimum-recolors-to-get-k-consecutive-black-blocks/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2379) | 🟢 Easy | +| March 9, 2025 | [3208](https://leetcode.com/problems/alternating-groups-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3208) | 🟡 Medium | # Join our discussion! From d2784d3ccef92d117d5ed8ca46b79e8620a07bdf Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 10 Mar 2025 00:27:55 +0000 Subject: [PATCH 267/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7746074..5b0eb7b 100644 --- a/README.md +++ b/README.md @@ -263,6 +263,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 7, 2025 | [2523](https://leetcode.com/problems/closest-prime-numbers-in-range/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2523) | 🟡 Medium | | March 8, 2025 | [2379](https://leetcode.com/problems/minimum-recolors-to-get-k-consecutive-black-blocks/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2379) | 🟢 Easy | | March 9, 2025 | [3208](https://leetcode.com/problems/alternating-groups-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3208) | 🟡 Medium | +| March 10, 2025 | [3306](https://leetcode.com/problems/count-of-substrings-containing-every-vowel-and-k-consonants-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3306) | 🟡 Medium | # Join our discussion! From 6642f899af7a20f00e875b0121f4061045815749 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 11 Mar 2025 00:31:50 +0000 Subject: [PATCH 268/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5b0eb7b..4ad0e30 100644 --- a/README.md +++ b/README.md @@ -264,6 +264,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 8, 2025 | [2379](https://leetcode.com/problems/minimum-recolors-to-get-k-consecutive-black-blocks/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2379) | 🟢 Easy | | March 9, 2025 | [3208](https://leetcode.com/problems/alternating-groups-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3208) | 🟡 Medium | | March 10, 2025 | [3306](https://leetcode.com/problems/count-of-substrings-containing-every-vowel-and-k-consonants-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3306) | 🟡 Medium | +| March 11, 2025 | [1358](https://leetcode.com/problems/number-of-substrings-containing-all-three-characters/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1358) | 🟡 Medium | # Join our discussion! From cc88651ea109f9955d1d948f6ab54bb5f34aea9d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 12 Mar 2025 00:31:33 +0000 Subject: [PATCH 269/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4ad0e30..9115906 100644 --- a/README.md +++ b/README.md @@ -265,6 +265,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 9, 2025 | [3208](https://leetcode.com/problems/alternating-groups-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3208) | 🟡 Medium | | March 10, 2025 | [3306](https://leetcode.com/problems/count-of-substrings-containing-every-vowel-and-k-consonants-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3306) | 🟡 Medium | | March 11, 2025 | [1358](https://leetcode.com/problems/number-of-substrings-containing-all-three-characters/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1358) | 🟡 Medium | +| March 12, 2025 | [2529](https://leetcode.com/problems/maximum-count-of-positive-integer-and-negative-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2529) | 🟢 Easy | # Join our discussion! From 7ecfa6da0cdb1e19a431b6fab9fa36b32e56560d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 13 Mar 2025 00:32:20 +0000 Subject: [PATCH 270/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9115906..127ac13 100644 --- a/README.md +++ b/README.md @@ -266,6 +266,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 10, 2025 | [3306](https://leetcode.com/problems/count-of-substrings-containing-every-vowel-and-k-consonants-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3306) | 🟡 Medium | | March 11, 2025 | [1358](https://leetcode.com/problems/number-of-substrings-containing-all-three-characters/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1358) | 🟡 Medium | | March 12, 2025 | [2529](https://leetcode.com/problems/maximum-count-of-positive-integer-and-negative-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2529) | 🟢 Easy | +| March 13, 2025 | [3356](https://leetcode.com/problems/zero-array-transformation-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3356) | 🟡 Medium | # Join our discussion! From b6815e4d12bfd032b549cfa7050a975be4a4fc86 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 14 Mar 2025 00:31:30 +0000 Subject: [PATCH 271/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 127ac13..5bd1ca7 100644 --- a/README.md +++ b/README.md @@ -267,6 +267,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 11, 2025 | [1358](https://leetcode.com/problems/number-of-substrings-containing-all-three-characters/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1358) | 🟡 Medium | | March 12, 2025 | [2529](https://leetcode.com/problems/maximum-count-of-positive-integer-and-negative-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2529) | 🟢 Easy | | March 13, 2025 | [3356](https://leetcode.com/problems/zero-array-transformation-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3356) | 🟡 Medium | +| March 14, 2025 | [2226](https://leetcode.com/problems/maximum-candies-allocated-to-k-children/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2226) | 🟡 Medium | # Join our discussion! From bfcf429c750bde1f74a1bc2f6464af11aaa70d4b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 15 Mar 2025 00:31:37 +0000 Subject: [PATCH 272/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5bd1ca7..160cee4 100644 --- a/README.md +++ b/README.md @@ -268,6 +268,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 12, 2025 | [2529](https://leetcode.com/problems/maximum-count-of-positive-integer-and-negative-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2529) | 🟢 Easy | | March 13, 2025 | [3356](https://leetcode.com/problems/zero-array-transformation-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3356) | 🟡 Medium | | March 14, 2025 | [2226](https://leetcode.com/problems/maximum-candies-allocated-to-k-children/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2226) | 🟡 Medium | +| March 15, 2025 | [2560](https://leetcode.com/problems/house-robber-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2560) | 🟡 Medium | # Join our discussion! From 4d4af55f4a3844696a47c7430c90ac6361135cab Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 16 Mar 2025 00:35:07 +0000 Subject: [PATCH 273/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 160cee4..1c45e99 100644 --- a/README.md +++ b/README.md @@ -269,6 +269,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 13, 2025 | [3356](https://leetcode.com/problems/zero-array-transformation-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3356) | 🟡 Medium | | March 14, 2025 | [2226](https://leetcode.com/problems/maximum-candies-allocated-to-k-children/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2226) | 🟡 Medium | | March 15, 2025 | [2560](https://leetcode.com/problems/house-robber-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2560) | 🟡 Medium | +| March 16, 2025 | [2594](https://leetcode.com/problems/minimum-time-to-repair-cars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2594) | 🟡 Medium | # Join our discussion! From c508bbf4334401fe0f4c732ee07dd4d8b1f527d8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 17 Mar 2025 00:33:49 +0000 Subject: [PATCH 274/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1c45e99..e454385 100644 --- a/README.md +++ b/README.md @@ -270,6 +270,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 14, 2025 | [2226](https://leetcode.com/problems/maximum-candies-allocated-to-k-children/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2226) | 🟡 Medium | | March 15, 2025 | [2560](https://leetcode.com/problems/house-robber-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2560) | 🟡 Medium | | March 16, 2025 | [2594](https://leetcode.com/problems/minimum-time-to-repair-cars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2594) | 🟡 Medium | +| March 17, 2025 | [2206](https://leetcode.com/problems/divide-array-into-equal-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2206) | 🟢 Easy | # Join our discussion! From e8afa8c63afcd7980410a53cdd94fb8df7f93b3b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 18 Mar 2025 00:31:57 +0000 Subject: [PATCH 275/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e454385..8a92488 100644 --- a/README.md +++ b/README.md @@ -271,6 +271,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 15, 2025 | [2560](https://leetcode.com/problems/house-robber-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2560) | 🟡 Medium | | March 16, 2025 | [2594](https://leetcode.com/problems/minimum-time-to-repair-cars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2594) | 🟡 Medium | | March 17, 2025 | [2206](https://leetcode.com/problems/divide-array-into-equal-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2206) | 🟢 Easy | +| March 18, 2025 | [2401](https://leetcode.com/problems/longest-nice-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2401) | 🟡 Medium | # Join our discussion! From 1a55383c0e301a44198dff62948c6d43e0a253b8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 19 Mar 2025 00:32:17 +0000 Subject: [PATCH 276/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8a92488..b4e5499 100644 --- a/README.md +++ b/README.md @@ -272,6 +272,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 16, 2025 | [2594](https://leetcode.com/problems/minimum-time-to-repair-cars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2594) | 🟡 Medium | | March 17, 2025 | [2206](https://leetcode.com/problems/divide-array-into-equal-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2206) | 🟢 Easy | | March 18, 2025 | [2401](https://leetcode.com/problems/longest-nice-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2401) | 🟡 Medium | +| March 19, 2025 | [3191](https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3191) | 🟡 Medium | # Join our discussion! From 0345fe2f6199c1bc3422448295927da9d88d0a17 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 20 Mar 2025 00:31:45 +0000 Subject: [PATCH 277/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b4e5499..ae88acd 100644 --- a/README.md +++ b/README.md @@ -273,6 +273,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 17, 2025 | [2206](https://leetcode.com/problems/divide-array-into-equal-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2206) | 🟢 Easy | | March 18, 2025 | [2401](https://leetcode.com/problems/longest-nice-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2401) | 🟡 Medium | | March 19, 2025 | [3191](https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3191) | 🟡 Medium | +| March 20, 2025 | [3108](https://leetcode.com/problems/minimum-cost-walk-in-weighted-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3108) | 🔴 Hard | # Join our discussion! From 649eb03d18499325d59ae2ba09f0d0da38c59c3a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 21 Mar 2025 00:32:25 +0000 Subject: [PATCH 278/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ae88acd..8cc66a6 100644 --- a/README.md +++ b/README.md @@ -274,6 +274,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 18, 2025 | [2401](https://leetcode.com/problems/longest-nice-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2401) | 🟡 Medium | | March 19, 2025 | [3191](https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3191) | 🟡 Medium | | March 20, 2025 | [3108](https://leetcode.com/problems/minimum-cost-walk-in-weighted-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3108) | 🔴 Hard | +| March 21, 2025 | [2115](https://leetcode.com/problems/find-all-possible-recipes-from-given-supplies/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2115) | 🟡 Medium | # Join our discussion! From 2a0af3aefdd6719b565037ecf90a506663f07b24 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 22 Mar 2025 00:31:37 +0000 Subject: [PATCH 279/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8cc66a6..30b2ac8 100644 --- a/README.md +++ b/README.md @@ -275,6 +275,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 19, 2025 | [3191](https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3191) | 🟡 Medium | | March 20, 2025 | [3108](https://leetcode.com/problems/minimum-cost-walk-in-weighted-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3108) | 🔴 Hard | | March 21, 2025 | [2115](https://leetcode.com/problems/find-all-possible-recipes-from-given-supplies/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2115) | 🟡 Medium | +| March 22, 2025 | [2685](https://leetcode.com/problems/count-the-number-of-complete-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2685) | 🟡 Medium | # Join our discussion! From 275ae3604ce46535c231ef4136ee804e2c51a848 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 23 Mar 2025 00:35:20 +0000 Subject: [PATCH 280/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 30b2ac8..c9f2c45 100644 --- a/README.md +++ b/README.md @@ -276,6 +276,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 20, 2025 | [3108](https://leetcode.com/problems/minimum-cost-walk-in-weighted-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3108) | 🔴 Hard | | March 21, 2025 | [2115](https://leetcode.com/problems/find-all-possible-recipes-from-given-supplies/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2115) | 🟡 Medium | | March 22, 2025 | [2685](https://leetcode.com/problems/count-the-number-of-complete-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2685) | 🟡 Medium | +| March 23, 2025 | [1976](https://leetcode.com/problems/number-of-ways-to-arrive-at-destination/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1976) | 🟡 Medium | # Join our discussion! From ced2c272b943e888dd4c4ee9ec8f3e26e47a0ef9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 24 Mar 2025 00:34:04 +0000 Subject: [PATCH 281/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c9f2c45..1cc244b 100644 --- a/README.md +++ b/README.md @@ -277,6 +277,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 21, 2025 | [2115](https://leetcode.com/problems/find-all-possible-recipes-from-given-supplies/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2115) | 🟡 Medium | | March 22, 2025 | [2685](https://leetcode.com/problems/count-the-number-of-complete-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2685) | 🟡 Medium | | March 23, 2025 | [1976](https://leetcode.com/problems/number-of-ways-to-arrive-at-destination/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1976) | 🟡 Medium | +| March 24, 2025 | [3169](https://leetcode.com/problems/count-days-without-meetings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3169) | 🟡 Medium | # Join our discussion! From e019b1e2f25254e7fa68f4357f76539458ec863e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 25 Mar 2025 00:32:42 +0000 Subject: [PATCH 282/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1cc244b..9318dad 100644 --- a/README.md +++ b/README.md @@ -278,6 +278,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 22, 2025 | [2685](https://leetcode.com/problems/count-the-number-of-complete-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2685) | 🟡 Medium | | March 23, 2025 | [1976](https://leetcode.com/problems/number-of-ways-to-arrive-at-destination/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1976) | 🟡 Medium | | March 24, 2025 | [3169](https://leetcode.com/problems/count-days-without-meetings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3169) | 🟡 Medium | +| March 25, 2025 | [3394](https://leetcode.com/problems/check-if-grid-can-be-cut-into-sections/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3394) | 🟡 Medium | # Join our discussion! From d036ae36b79a14efd736099b21471aedeb0cb261 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 26 Mar 2025 00:32:17 +0000 Subject: [PATCH 283/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9318dad..597e3c3 100644 --- a/README.md +++ b/README.md @@ -279,6 +279,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 23, 2025 | [1976](https://leetcode.com/problems/number-of-ways-to-arrive-at-destination/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1976) | 🟡 Medium | | March 24, 2025 | [3169](https://leetcode.com/problems/count-days-without-meetings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3169) | 🟡 Medium | | March 25, 2025 | [3394](https://leetcode.com/problems/check-if-grid-can-be-cut-into-sections/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3394) | 🟡 Medium | +| March 26, 2025 | [2033](https://leetcode.com/problems/minimum-operations-to-make-a-uni-value-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2033) | 🟡 Medium | # Join our discussion! From 7b7e8fa455ee235fd0789f06e84853bfdd279b8e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 27 Mar 2025 00:32:28 +0000 Subject: [PATCH 284/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 597e3c3..e9183eb 100644 --- a/README.md +++ b/README.md @@ -280,6 +280,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 24, 2025 | [3169](https://leetcode.com/problems/count-days-without-meetings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3169) | 🟡 Medium | | March 25, 2025 | [3394](https://leetcode.com/problems/check-if-grid-can-be-cut-into-sections/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3394) | 🟡 Medium | | March 26, 2025 | [2033](https://leetcode.com/problems/minimum-operations-to-make-a-uni-value-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2033) | 🟡 Medium | +| March 27, 2025 | [2780](https://leetcode.com/problems/minimum-index-of-a-valid-split/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2780) | 🟡 Medium | # Join our discussion! From 83c731bfd0a9c24f30ab1084c1f90b73956512c4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 28 Mar 2025 00:32:43 +0000 Subject: [PATCH 285/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e9183eb..a8a7fda 100644 --- a/README.md +++ b/README.md @@ -281,6 +281,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 25, 2025 | [3394](https://leetcode.com/problems/check-if-grid-can-be-cut-into-sections/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3394) | 🟡 Medium | | March 26, 2025 | [2033](https://leetcode.com/problems/minimum-operations-to-make-a-uni-value-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2033) | 🟡 Medium | | March 27, 2025 | [2780](https://leetcode.com/problems/minimum-index-of-a-valid-split/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2780) | 🟡 Medium | +| March 28, 2025 | [2503](https://leetcode.com/problems/maximum-number-of-points-from-grid-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2503) | 🔴 Hard | # Join our discussion! From 2fbc3d8f90bbc10fecc7caf964e6dc6c5191c90d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 29 Mar 2025 00:32:23 +0000 Subject: [PATCH 286/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a8a7fda..e8783ba 100644 --- a/README.md +++ b/README.md @@ -282,6 +282,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 26, 2025 | [2033](https://leetcode.com/problems/minimum-operations-to-make-a-uni-value-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2033) | 🟡 Medium | | March 27, 2025 | [2780](https://leetcode.com/problems/minimum-index-of-a-valid-split/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2780) | 🟡 Medium | | March 28, 2025 | [2503](https://leetcode.com/problems/maximum-number-of-points-from-grid-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2503) | 🔴 Hard | +| March 29, 2025 | [2818](https://leetcode.com/problems/apply-operations-to-maximize-score/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2818) | 🔴 Hard | # Join our discussion! From 3e65383e9ff3a683fcc4d248031dbad0a62a57ef Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 30 Mar 2025 00:36:09 +0000 Subject: [PATCH 287/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e8783ba..68a3550 100644 --- a/README.md +++ b/README.md @@ -283,6 +283,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 27, 2025 | [2780](https://leetcode.com/problems/minimum-index-of-a-valid-split/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2780) | 🟡 Medium | | March 28, 2025 | [2503](https://leetcode.com/problems/maximum-number-of-points-from-grid-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2503) | 🔴 Hard | | March 29, 2025 | [2818](https://leetcode.com/problems/apply-operations-to-maximize-score/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2818) | 🔴 Hard | +| March 30, 2025 | [763](https://leetcode.com/problems/partition-labels/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/763) | 🟡 Medium | # Join our discussion! From 80b67f5d8e6d40c1cda77df72aa56dc0fd95128e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 31 Mar 2025 00:35:16 +0000 Subject: [PATCH 288/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 68a3550..6767c58 100644 --- a/README.md +++ b/README.md @@ -284,6 +284,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 28, 2025 | [2503](https://leetcode.com/problems/maximum-number-of-points-from-grid-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2503) | 🔴 Hard | | March 29, 2025 | [2818](https://leetcode.com/problems/apply-operations-to-maximize-score/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2818) | 🔴 Hard | | March 30, 2025 | [763](https://leetcode.com/problems/partition-labels/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/763) | 🟡 Medium | +| March 31, 2025 | [2551](https://leetcode.com/problems/put-marbles-in-bags/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2551) | 🔴 Hard | # Join our discussion! From e3a5593d9484d6ac4e30276f00cd1eb5f32f5405 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 1 Apr 2025 00:37:53 +0000 Subject: [PATCH 289/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6767c58..7a2e79e 100644 --- a/README.md +++ b/README.md @@ -285,6 +285,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 29, 2025 | [2818](https://leetcode.com/problems/apply-operations-to-maximize-score/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2818) | 🔴 Hard | | March 30, 2025 | [763](https://leetcode.com/problems/partition-labels/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/763) | 🟡 Medium | | March 31, 2025 | [2551](https://leetcode.com/problems/put-marbles-in-bags/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2551) | 🔴 Hard | +| April 1, 2025 | [2140](https://leetcode.com/problems/solving-questions-with-brainpower/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2140) | 🟡 Medium | # Join our discussion! From cf0e67aaeca3a108d9d775f2c0d323044bb28a8c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 2 Apr 2025 00:33:20 +0000 Subject: [PATCH 290/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7a2e79e..6aea9da 100644 --- a/README.md +++ b/README.md @@ -286,6 +286,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 30, 2025 | [763](https://leetcode.com/problems/partition-labels/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/763) | 🟡 Medium | | March 31, 2025 | [2551](https://leetcode.com/problems/put-marbles-in-bags/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2551) | 🔴 Hard | | April 1, 2025 | [2140](https://leetcode.com/problems/solving-questions-with-brainpower/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2140) | 🟡 Medium | +| April 2, 2025 | [2873](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2873) | 🟢 Easy | # Join our discussion! From baaab2128fc0f7d3b5cf6e9a7ef9c22c2efe4e9d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 3 Apr 2025 00:32:26 +0000 Subject: [PATCH 291/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6aea9da..46f45cf 100644 --- a/README.md +++ b/README.md @@ -287,6 +287,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | March 31, 2025 | [2551](https://leetcode.com/problems/put-marbles-in-bags/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2551) | 🔴 Hard | | April 1, 2025 | [2140](https://leetcode.com/problems/solving-questions-with-brainpower/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2140) | 🟡 Medium | | April 2, 2025 | [2873](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2873) | 🟢 Easy | +| April 3, 2025 | [2874](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2874) | 🟡 Medium | # Join our discussion! From b30a412ee0b47587c5c06d9341a3b3d4a224ed95 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 4 Apr 2025 00:32:41 +0000 Subject: [PATCH 292/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 46f45cf..dfbc786 100644 --- a/README.md +++ b/README.md @@ -288,6 +288,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 1, 2025 | [2140](https://leetcode.com/problems/solving-questions-with-brainpower/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2140) | 🟡 Medium | | April 2, 2025 | [2873](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2873) | 🟢 Easy | | April 3, 2025 | [2874](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2874) | 🟡 Medium | +| April 4, 2025 | [1123](https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1123) | 🟡 Medium | # Join our discussion! From cd43177ba0929a1b8547e0eab62dd8e8d65d1d56 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 5 Apr 2025 00:32:14 +0000 Subject: [PATCH 293/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index dfbc786..5311b41 100644 --- a/README.md +++ b/README.md @@ -289,6 +289,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 2, 2025 | [2873](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2873) | 🟢 Easy | | April 3, 2025 | [2874](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2874) | 🟡 Medium | | April 4, 2025 | [1123](https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1123) | 🟡 Medium | +| April 5, 2025 | [1863](https://leetcode.com/problems/sum-of-all-subset-xor-totals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1863) | 🟢 Easy | # Join our discussion! From e65b6901c6ff6fbc2090e2984b6f9f8be9dcfe74 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 6 Apr 2025 00:35:48 +0000 Subject: [PATCH 294/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5311b41..8d42d35 100644 --- a/README.md +++ b/README.md @@ -290,6 +290,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 3, 2025 | [2874](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2874) | 🟡 Medium | | April 4, 2025 | [1123](https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1123) | 🟡 Medium | | April 5, 2025 | [1863](https://leetcode.com/problems/sum-of-all-subset-xor-totals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1863) | 🟢 Easy | +| April 6, 2025 | [368](https://leetcode.com/problems/largest-divisible-subset/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/368) | 🟡 Medium | # Join our discussion! From 192759418aa1a3eacf826c14d812e5407eabe635 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 7 Apr 2025 00:34:24 +0000 Subject: [PATCH 295/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8d42d35..9ba9f7f 100644 --- a/README.md +++ b/README.md @@ -291,6 +291,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 4, 2025 | [1123](https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1123) | 🟡 Medium | | April 5, 2025 | [1863](https://leetcode.com/problems/sum-of-all-subset-xor-totals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1863) | 🟢 Easy | | April 6, 2025 | [368](https://leetcode.com/problems/largest-divisible-subset/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/368) | 🟡 Medium | +| April 7, 2025 | [416](https://leetcode.com/problems/partition-equal-subset-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/416) | 🟡 Medium | # Join our discussion! From 31964a490cf9fb538da38d4e64e2cb94d2d50c2e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 8 Apr 2025 00:32:38 +0000 Subject: [PATCH 296/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9ba9f7f..ea3a7c6 100644 --- a/README.md +++ b/README.md @@ -292,6 +292,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 5, 2025 | [1863](https://leetcode.com/problems/sum-of-all-subset-xor-totals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1863) | 🟢 Easy | | April 6, 2025 | [368](https://leetcode.com/problems/largest-divisible-subset/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/368) | 🟡 Medium | | April 7, 2025 | [416](https://leetcode.com/problems/partition-equal-subset-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/416) | 🟡 Medium | +| April 8, 2025 | [3396](https://leetcode.com/problems/minimum-number-of-operations-to-make-elements-in-array-distinct/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3396) | 🟢 Easy | # Join our discussion! From 0ea8000ab96fa088db93b3e487c25933ac795c12 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 9 Apr 2025 00:33:01 +0000 Subject: [PATCH 297/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ea3a7c6..8980d77 100644 --- a/README.md +++ b/README.md @@ -293,6 +293,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 6, 2025 | [368](https://leetcode.com/problems/largest-divisible-subset/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/368) | 🟡 Medium | | April 7, 2025 | [416](https://leetcode.com/problems/partition-equal-subset-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/416) | 🟡 Medium | | April 8, 2025 | [3396](https://leetcode.com/problems/minimum-number-of-operations-to-make-elements-in-array-distinct/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3396) | 🟢 Easy | +| April 9, 2025 | [3375](https://leetcode.com/problems/minimum-operations-to-make-array-values-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3375) | 🟢 Easy | # Join our discussion! From 14677906d37d4fd12d0f45718f6e31754970e3bb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 10 Apr 2025 00:32:51 +0000 Subject: [PATCH 298/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8980d77..af9d477 100644 --- a/README.md +++ b/README.md @@ -294,6 +294,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 7, 2025 | [416](https://leetcode.com/problems/partition-equal-subset-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/416) | 🟡 Medium | | April 8, 2025 | [3396](https://leetcode.com/problems/minimum-number-of-operations-to-make-elements-in-array-distinct/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3396) | 🟢 Easy | | April 9, 2025 | [3375](https://leetcode.com/problems/minimum-operations-to-make-array-values-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3375) | 🟢 Easy | +| April 10, 2025 | [2999](https://leetcode.com/problems/count-the-number-of-powerful-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2999) | 🔴 Hard | # Join our discussion! From b864c45c2bfdfc18b0a49fa5349d76e3c446fa43 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 11 Apr 2025 00:33:25 +0000 Subject: [PATCH 299/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index af9d477..73be2bd 100644 --- a/README.md +++ b/README.md @@ -295,6 +295,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 8, 2025 | [3396](https://leetcode.com/problems/minimum-number-of-operations-to-make-elements-in-array-distinct/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3396) | 🟢 Easy | | April 9, 2025 | [3375](https://leetcode.com/problems/minimum-operations-to-make-array-values-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3375) | 🟢 Easy | | April 10, 2025 | [2999](https://leetcode.com/problems/count-the-number-of-powerful-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2999) | 🔴 Hard | +| April 11, 2025 | [2843](https://leetcode.com/problems/count-symmetric-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2843) | 🟢 Easy | # Join our discussion! From 0204d384e970562bb72e4883b738d6292368edae Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 12 Apr 2025 00:32:29 +0000 Subject: [PATCH 300/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 73be2bd..e47186f 100644 --- a/README.md +++ b/README.md @@ -296,6 +296,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 9, 2025 | [3375](https://leetcode.com/problems/minimum-operations-to-make-array-values-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3375) | 🟢 Easy | | April 10, 2025 | [2999](https://leetcode.com/problems/count-the-number-of-powerful-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2999) | 🔴 Hard | | April 11, 2025 | [2843](https://leetcode.com/problems/count-symmetric-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2843) | 🟢 Easy | +| April 12, 2025 | [3272](https://leetcode.com/problems/find-the-count-of-good-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3272) | 🔴 Hard | # Join our discussion! From 70f3bf58641f8e3c157631fef2883578d8e97dd0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 13 Apr 2025 00:59:24 +0000 Subject: [PATCH 301/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e47186f..8c02696 100644 --- a/README.md +++ b/README.md @@ -297,6 +297,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 10, 2025 | [2999](https://leetcode.com/problems/count-the-number-of-powerful-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2999) | 🔴 Hard | | April 11, 2025 | [2843](https://leetcode.com/problems/count-symmetric-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2843) | 🟢 Easy | | April 12, 2025 | [3272](https://leetcode.com/problems/find-the-count-of-good-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3272) | 🔴 Hard | +| April 13, 2025 | [1922](https://leetcode.com/problems/count-good-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1922) | 🟡 Medium | # Join our discussion! From 4e40417b0b00cac532879e6d5d5010021ef26f07 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 14 Apr 2025 00:35:53 +0000 Subject: [PATCH 302/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8c02696..6d662b4 100644 --- a/README.md +++ b/README.md @@ -298,6 +298,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 11, 2025 | [2843](https://leetcode.com/problems/count-symmetric-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2843) | 🟢 Easy | | April 12, 2025 | [3272](https://leetcode.com/problems/find-the-count-of-good-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3272) | 🔴 Hard | | April 13, 2025 | [1922](https://leetcode.com/problems/count-good-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1922) | 🟡 Medium | +| April 14, 2025 | [1534](https://leetcode.com/problems/count-good-triplets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1534) | 🟢 Easy | # Join our discussion! From acb735963c76806819895d672b51b88289db973f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 15 Apr 2025 00:34:04 +0000 Subject: [PATCH 303/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6d662b4..5ee1686 100644 --- a/README.md +++ b/README.md @@ -299,6 +299,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 12, 2025 | [3272](https://leetcode.com/problems/find-the-count-of-good-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3272) | 🔴 Hard | | April 13, 2025 | [1922](https://leetcode.com/problems/count-good-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1922) | 🟡 Medium | | April 14, 2025 | [1534](https://leetcode.com/problems/count-good-triplets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1534) | 🟢 Easy | +| April 15, 2025 | [2179](https://leetcode.com/problems/count-good-triplets-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2179) | 🔴 Hard | # Join our discussion! From 19f8641839ebe1d60f61c141a0f6cc7e431bc345 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 16 Apr 2025 00:34:17 +0000 Subject: [PATCH 304/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5ee1686..ecdbefe 100644 --- a/README.md +++ b/README.md @@ -300,6 +300,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 13, 2025 | [1922](https://leetcode.com/problems/count-good-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1922) | 🟡 Medium | | April 14, 2025 | [1534](https://leetcode.com/problems/count-good-triplets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1534) | 🟢 Easy | | April 15, 2025 | [2179](https://leetcode.com/problems/count-good-triplets-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2179) | 🔴 Hard | +| April 16, 2025 | [2537](https://leetcode.com/problems/count-the-number-of-good-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2537) | 🟡 Medium | # Join our discussion! From 893ccfc4fa200b3dce874624959e16d06ebeab91 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 17 Apr 2025 00:33:14 +0000 Subject: [PATCH 305/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ecdbefe..031daf9 100644 --- a/README.md +++ b/README.md @@ -301,6 +301,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 14, 2025 | [1534](https://leetcode.com/problems/count-good-triplets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1534) | 🟢 Easy | | April 15, 2025 | [2179](https://leetcode.com/problems/count-good-triplets-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2179) | 🔴 Hard | | April 16, 2025 | [2537](https://leetcode.com/problems/count-the-number-of-good-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2537) | 🟡 Medium | +| April 17, 2025 | [2176](https://leetcode.com/problems/count-equal-and-divisible-pairs-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2176) | 🟢 Easy | # Join our discussion! From c00f47ac68892bb734083d36ec48af964ec97281 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 18 Apr 2025 00:32:58 +0000 Subject: [PATCH 306/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 031daf9..577d955 100644 --- a/README.md +++ b/README.md @@ -302,6 +302,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 15, 2025 | [2179](https://leetcode.com/problems/count-good-triplets-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2179) | 🔴 Hard | | April 16, 2025 | [2537](https://leetcode.com/problems/count-the-number-of-good-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2537) | 🟡 Medium | | April 17, 2025 | [2176](https://leetcode.com/problems/count-equal-and-divisible-pairs-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2176) | 🟢 Easy | +| April 18, 2025 | [38](https://leetcode.com/problems/count-and-say/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/38) | 🟡 Medium | # Join our discussion! From 6a94111509bd9a22d111b0fff4f37ddc0c434061 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 19 Apr 2025 00:31:59 +0000 Subject: [PATCH 307/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 577d955..5786b80 100644 --- a/README.md +++ b/README.md @@ -303,6 +303,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 16, 2025 | [2537](https://leetcode.com/problems/count-the-number-of-good-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2537) | 🟡 Medium | | April 17, 2025 | [2176](https://leetcode.com/problems/count-equal-and-divisible-pairs-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2176) | 🟢 Easy | | April 18, 2025 | [38](https://leetcode.com/problems/count-and-say/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/38) | 🟡 Medium | +| April 19, 2025 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | # Join our discussion! From b4ed561db16f748c5bad9337ef124668d66f7b17 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 20 Apr 2025 00:36:48 +0000 Subject: [PATCH 308/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5786b80..8202771 100644 --- a/README.md +++ b/README.md @@ -304,6 +304,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 17, 2025 | [2176](https://leetcode.com/problems/count-equal-and-divisible-pairs-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2176) | 🟢 Easy | | April 18, 2025 | [38](https://leetcode.com/problems/count-and-say/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/38) | 🟡 Medium | | April 19, 2025 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | +| April 20, 2025 | [781](https://leetcode.com/problems/rabbits-in-forest/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/781) | 🟡 Medium | # Join our discussion! From 27fe8a3fd6fe1e42206d8d9abb73bc145f4c9eba Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 21 Apr 2025 00:35:40 +0000 Subject: [PATCH 309/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8202771..ccd7441 100644 --- a/README.md +++ b/README.md @@ -305,6 +305,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 18, 2025 | [38](https://leetcode.com/problems/count-and-say/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/38) | 🟡 Medium | | April 19, 2025 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | | April 20, 2025 | [781](https://leetcode.com/problems/rabbits-in-forest/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/781) | 🟡 Medium | +| April 21, 2025 | [2145](https://leetcode.com/problems/count-the-hidden-sequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2145) | 🟡 Medium | # Join our discussion! From 9033007eb95cadc09252e29a2eff779442af31a2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 22 Apr 2025 00:33:59 +0000 Subject: [PATCH 310/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ccd7441..5e67b0e 100644 --- a/README.md +++ b/README.md @@ -306,6 +306,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 19, 2025 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | | April 20, 2025 | [781](https://leetcode.com/problems/rabbits-in-forest/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/781) | 🟡 Medium | | April 21, 2025 | [2145](https://leetcode.com/problems/count-the-hidden-sequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2145) | 🟡 Medium | +| April 22, 2025 | [2338](https://leetcode.com/problems/count-the-number-of-ideal-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2338) | 🔴 Hard | # Join our discussion! From fa287b526d7b23ea35f130fe95a93e618d7dbbb1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 23 Apr 2025 00:33:35 +0000 Subject: [PATCH 311/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5e67b0e..db38030 100644 --- a/README.md +++ b/README.md @@ -307,6 +307,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 20, 2025 | [781](https://leetcode.com/problems/rabbits-in-forest/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/781) | 🟡 Medium | | April 21, 2025 | [2145](https://leetcode.com/problems/count-the-hidden-sequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2145) | 🟡 Medium | | April 22, 2025 | [2338](https://leetcode.com/problems/count-the-number-of-ideal-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2338) | 🔴 Hard | +| April 23, 2025 | [1399](https://leetcode.com/problems/count-largest-group/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1399) | 🟢 Easy | # Join our discussion! From d4c1410c9133523eca3b81f64a59167f5fce67f9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 24 Apr 2025 00:33:36 +0000 Subject: [PATCH 312/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index db38030..d448bd8 100644 --- a/README.md +++ b/README.md @@ -308,6 +308,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 21, 2025 | [2145](https://leetcode.com/problems/count-the-hidden-sequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2145) | 🟡 Medium | | April 22, 2025 | [2338](https://leetcode.com/problems/count-the-number-of-ideal-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2338) | 🔴 Hard | | April 23, 2025 | [1399](https://leetcode.com/problems/count-largest-group/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1399) | 🟢 Easy | +| April 24, 2025 | [2799](https://leetcode.com/problems/count-complete-subarrays-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2799) | 🟡 Medium | # Join our discussion! From 02248db0463c63060769efb366d492ba40d7a384 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 25 Apr 2025 00:34:10 +0000 Subject: [PATCH 313/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d448bd8..6801df5 100644 --- a/README.md +++ b/README.md @@ -309,6 +309,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 22, 2025 | [2338](https://leetcode.com/problems/count-the-number-of-ideal-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2338) | 🔴 Hard | | April 23, 2025 | [1399](https://leetcode.com/problems/count-largest-group/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1399) | 🟢 Easy | | April 24, 2025 | [2799](https://leetcode.com/problems/count-complete-subarrays-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2799) | 🟡 Medium | +| April 25, 2025 | [2845](https://leetcode.com/problems/count-of-interesting-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2845) | 🟡 Medium | # Join our discussion! From ed37950153f258bb3f21877b28a7eaf8553cd053 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 26 Apr 2025 00:33:02 +0000 Subject: [PATCH 314/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6801df5..5eed7f9 100644 --- a/README.md +++ b/README.md @@ -310,6 +310,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 23, 2025 | [1399](https://leetcode.com/problems/count-largest-group/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1399) | 🟢 Easy | | April 24, 2025 | [2799](https://leetcode.com/problems/count-complete-subarrays-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2799) | 🟡 Medium | | April 25, 2025 | [2845](https://leetcode.com/problems/count-of-interesting-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2845) | 🟡 Medium | +| April 26, 2025 | [2444](https://leetcode.com/problems/count-subarrays-with-fixed-bounds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2444) | 🔴 Hard | # Join our discussion! From 54757b69a2f6fe6b240b4c6e83fb4d831af17d37 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 27 Apr 2025 00:36:47 +0000 Subject: [PATCH 315/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5eed7f9..67d565c 100644 --- a/README.md +++ b/README.md @@ -311,6 +311,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 24, 2025 | [2799](https://leetcode.com/problems/count-complete-subarrays-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2799) | 🟡 Medium | | April 25, 2025 | [2845](https://leetcode.com/problems/count-of-interesting-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2845) | 🟡 Medium | | April 26, 2025 | [2444](https://leetcode.com/problems/count-subarrays-with-fixed-bounds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2444) | 🔴 Hard | +| April 27, 2025 | [3392](https://leetcode.com/problems/count-subarrays-of-length-three-with-a-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3392) | 🟢 Easy | # Join our discussion! From e05a9997d9f6deb12184e7d8900fa6758c407655 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 28 Apr 2025 00:35:47 +0000 Subject: [PATCH 316/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 67d565c..9dd8e92 100644 --- a/README.md +++ b/README.md @@ -312,6 +312,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 25, 2025 | [2845](https://leetcode.com/problems/count-of-interesting-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2845) | 🟡 Medium | | April 26, 2025 | [2444](https://leetcode.com/problems/count-subarrays-with-fixed-bounds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2444) | 🔴 Hard | | April 27, 2025 | [3392](https://leetcode.com/problems/count-subarrays-of-length-three-with-a-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3392) | 🟢 Easy | +| April 28, 2025 | [2302](https://leetcode.com/problems/count-subarrays-with-score-less-than-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2302) | 🔴 Hard | # Join our discussion! From 64d54cf6f7f803a1718134f22b56acd8b83e036c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 29 Apr 2025 00:34:02 +0000 Subject: [PATCH 317/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9dd8e92..814d451 100644 --- a/README.md +++ b/README.md @@ -313,6 +313,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 26, 2025 | [2444](https://leetcode.com/problems/count-subarrays-with-fixed-bounds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2444) | 🔴 Hard | | April 27, 2025 | [3392](https://leetcode.com/problems/count-subarrays-of-length-three-with-a-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3392) | 🟢 Easy | | April 28, 2025 | [2302](https://leetcode.com/problems/count-subarrays-with-score-less-than-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2302) | 🔴 Hard | +| April 29, 2025 | [2962](https://leetcode.com/problems/count-subarrays-where-max-element-appears-at-least-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2962) | 🟡 Medium | # Join our discussion! From b0c1405b9b4ac70e98217b0b3848e235cad60ea2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 30 Apr 2025 00:34:11 +0000 Subject: [PATCH 318/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 814d451..283338b 100644 --- a/README.md +++ b/README.md @@ -314,6 +314,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 27, 2025 | [3392](https://leetcode.com/problems/count-subarrays-of-length-three-with-a-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3392) | 🟢 Easy | | April 28, 2025 | [2302](https://leetcode.com/problems/count-subarrays-with-score-less-than-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2302) | 🔴 Hard | | April 29, 2025 | [2962](https://leetcode.com/problems/count-subarrays-where-max-element-appears-at-least-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2962) | 🟡 Medium | +| April 30, 2025 | [1295](https://leetcode.com/problems/find-numbers-with-even-number-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1295) | 🟢 Easy | # Join our discussion! From d6bba23e4db9bc17be64e300056e00374ed24304 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 1 May 2025 00:38:25 +0000 Subject: [PATCH 319/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 283338b..3323257 100644 --- a/README.md +++ b/README.md @@ -315,6 +315,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 28, 2025 | [2302](https://leetcode.com/problems/count-subarrays-with-score-less-than-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2302) | 🔴 Hard | | April 29, 2025 | [2962](https://leetcode.com/problems/count-subarrays-where-max-element-appears-at-least-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2962) | 🟡 Medium | | April 30, 2025 | [1295](https://leetcode.com/problems/find-numbers-with-even-number-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1295) | 🟢 Easy | +| May 1, 2025 | [2071](https://leetcode.com/problems/maximum-number-of-tasks-you-can-assign/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2071) | 🔴 Hard | # Join our discussion! From 3fc4e089d8943e9de399c4cdc10a23fcb7419b21 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 2 May 2025 00:34:04 +0000 Subject: [PATCH 320/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3323257..1972ff2 100644 --- a/README.md +++ b/README.md @@ -316,6 +316,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 29, 2025 | [2962](https://leetcode.com/problems/count-subarrays-where-max-element-appears-at-least-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2962) | 🟡 Medium | | April 30, 2025 | [1295](https://leetcode.com/problems/find-numbers-with-even-number-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1295) | 🟢 Easy | | May 1, 2025 | [2071](https://leetcode.com/problems/maximum-number-of-tasks-you-can-assign/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2071) | 🔴 Hard | +| May 2, 2025 | [838](https://leetcode.com/problems/push-dominoes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/838) | 🟡 Medium | # Join our discussion! From 167fc1969ea3fad2242846ca891f27b645a11e3b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 3 May 2025 00:32:56 +0000 Subject: [PATCH 321/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1972ff2..75b781d 100644 --- a/README.md +++ b/README.md @@ -317,6 +317,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | April 30, 2025 | [1295](https://leetcode.com/problems/find-numbers-with-even-number-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1295) | 🟢 Easy | | May 1, 2025 | [2071](https://leetcode.com/problems/maximum-number-of-tasks-you-can-assign/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2071) | 🔴 Hard | | May 2, 2025 | [838](https://leetcode.com/problems/push-dominoes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/838) | 🟡 Medium | +| May 3, 2025 | [1007](https://leetcode.com/problems/minimum-domino-rotations-for-equal-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1007) | 🟡 Medium | # Join our discussion! From 8bb034636c0e488ef0e603a8ed57113abed716b9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 4 May 2025 00:38:27 +0000 Subject: [PATCH 322/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 75b781d..347882f 100644 --- a/README.md +++ b/README.md @@ -318,6 +318,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 1, 2025 | [2071](https://leetcode.com/problems/maximum-number-of-tasks-you-can-assign/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2071) | 🔴 Hard | | May 2, 2025 | [838](https://leetcode.com/problems/push-dominoes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/838) | 🟡 Medium | | May 3, 2025 | [1007](https://leetcode.com/problems/minimum-domino-rotations-for-equal-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1007) | 🟡 Medium | +| May 4, 2025 | [1128](https://leetcode.com/problems/number-of-equivalent-domino-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1128) | 🟢 Easy | # Join our discussion! From 3aac8b237d9ae73912f6cd408d728099097a3264 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 5 May 2025 00:36:56 +0000 Subject: [PATCH 323/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 347882f..1defb12 100644 --- a/README.md +++ b/README.md @@ -319,6 +319,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 2, 2025 | [838](https://leetcode.com/problems/push-dominoes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/838) | 🟡 Medium | | May 3, 2025 | [1007](https://leetcode.com/problems/minimum-domino-rotations-for-equal-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1007) | 🟡 Medium | | May 4, 2025 | [1128](https://leetcode.com/problems/number-of-equivalent-domino-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1128) | 🟢 Easy | +| May 5, 2025 | [790](https://leetcode.com/problems/domino-and-tromino-tiling/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/790) | 🟡 Medium | # Join our discussion! From f41d62040c7e7acca1bd3dd4ca44673d6d9c1406 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 6 May 2025 00:34:28 +0000 Subject: [PATCH 324/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1defb12..ec44310 100644 --- a/README.md +++ b/README.md @@ -320,6 +320,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 3, 2025 | [1007](https://leetcode.com/problems/minimum-domino-rotations-for-equal-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1007) | 🟡 Medium | | May 4, 2025 | [1128](https://leetcode.com/problems/number-of-equivalent-domino-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1128) | 🟢 Easy | | May 5, 2025 | [790](https://leetcode.com/problems/domino-and-tromino-tiling/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/790) | 🟡 Medium | +| May 6, 2025 | [1920](https://leetcode.com/problems/build-array-from-permutation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1920) | 🟢 Easy | # Join our discussion! From 895ec8c56ec43034560fa34bb66a96af0b939945 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 7 May 2025 00:34:41 +0000 Subject: [PATCH 325/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ec44310..7d9178b 100644 --- a/README.md +++ b/README.md @@ -321,6 +321,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 4, 2025 | [1128](https://leetcode.com/problems/number-of-equivalent-domino-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1128) | 🟢 Easy | | May 5, 2025 | [790](https://leetcode.com/problems/domino-and-tromino-tiling/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/790) | 🟡 Medium | | May 6, 2025 | [1920](https://leetcode.com/problems/build-array-from-permutation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1920) | 🟢 Easy | +| May 7, 2025 | [3341](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3341) | 🟡 Medium | # Join our discussion! From 043cac6ff2509e525f7295ebe99329cbccc209be Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 8 May 2025 00:34:43 +0000 Subject: [PATCH 326/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7d9178b..bc51013 100644 --- a/README.md +++ b/README.md @@ -322,6 +322,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 5, 2025 | [790](https://leetcode.com/problems/domino-and-tromino-tiling/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/790) | 🟡 Medium | | May 6, 2025 | [1920](https://leetcode.com/problems/build-array-from-permutation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1920) | 🟢 Easy | | May 7, 2025 | [3341](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3341) | 🟡 Medium | +| May 8, 2025 | [3342](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3342) | 🟡 Medium | # Join our discussion! From 2f5e7891140bbc55bf702caad8466a6cb2d0daf9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 9 May 2025 00:34:56 +0000 Subject: [PATCH 327/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index bc51013..2fa15dd 100644 --- a/README.md +++ b/README.md @@ -323,6 +323,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 6, 2025 | [1920](https://leetcode.com/problems/build-array-from-permutation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1920) | 🟢 Easy | | May 7, 2025 | [3341](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3341) | 🟡 Medium | | May 8, 2025 | [3342](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3342) | 🟡 Medium | +| May 9, 2025 | [3343](https://leetcode.com/problems/count-number-of-balanced-permutations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3343) | 🔴 Hard | # Join our discussion! From 36c7af56c19b422342c9a3a1be07063d0bc482d1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 10 May 2025 00:33:00 +0000 Subject: [PATCH 328/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2fa15dd..34d3284 100644 --- a/README.md +++ b/README.md @@ -324,6 +324,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 7, 2025 | [3341](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3341) | 🟡 Medium | | May 8, 2025 | [3342](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3342) | 🟡 Medium | | May 9, 2025 | [3343](https://leetcode.com/problems/count-number-of-balanced-permutations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3343) | 🔴 Hard | +| May 10, 2025 | [2918](https://leetcode.com/problems/minimum-equal-sum-of-two-arrays-after-replacing-zeros/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2918) | 🟡 Medium | # Join our discussion! From ab75a9bab641e57d5e7753745cf32cc04dec1a4e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 11 May 2025 00:37:31 +0000 Subject: [PATCH 329/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 34d3284..465262c 100644 --- a/README.md +++ b/README.md @@ -325,6 +325,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 8, 2025 | [3342](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3342) | 🟡 Medium | | May 9, 2025 | [3343](https://leetcode.com/problems/count-number-of-balanced-permutations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3343) | 🔴 Hard | | May 10, 2025 | [2918](https://leetcode.com/problems/minimum-equal-sum-of-two-arrays-after-replacing-zeros/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2918) | 🟡 Medium | +| May 11, 2025 | [1550](https://leetcode.com/problems/three-consecutive-odds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1550) | 🟢 Easy | # Join our discussion! From 757bf6485ee6c7bfcad86ba12791d13a7c593b28 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 12 May 2025 00:37:16 +0000 Subject: [PATCH 330/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 465262c..7bf6f53 100644 --- a/README.md +++ b/README.md @@ -326,6 +326,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 9, 2025 | [3343](https://leetcode.com/problems/count-number-of-balanced-permutations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3343) | 🔴 Hard | | May 10, 2025 | [2918](https://leetcode.com/problems/minimum-equal-sum-of-two-arrays-after-replacing-zeros/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2918) | 🟡 Medium | | May 11, 2025 | [1550](https://leetcode.com/problems/three-consecutive-odds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1550) | 🟢 Easy | +| May 12, 2025 | [2094](https://leetcode.com/problems/finding-3-digit-even-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2094) | 🟢 Easy | # Join our discussion! From 7fb8ba8a47df6f9c373766ec592edd37447a5502 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 13 May 2025 00:35:02 +0000 Subject: [PATCH 331/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7bf6f53..0a3c91a 100644 --- a/README.md +++ b/README.md @@ -327,6 +327,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 10, 2025 | [2918](https://leetcode.com/problems/minimum-equal-sum-of-two-arrays-after-replacing-zeros/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2918) | 🟡 Medium | | May 11, 2025 | [1550](https://leetcode.com/problems/three-consecutive-odds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1550) | 🟢 Easy | | May 12, 2025 | [2094](https://leetcode.com/problems/finding-3-digit-even-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2094) | 🟢 Easy | +| May 13, 2025 | [3335](https://leetcode.com/problems/total-characters-in-string-after-transformations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3335) | 🟡 Medium | # Join our discussion! From 5fd11a028e8710b03ee75247b75f3f8c587bcc86 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 14 May 2025 00:34:44 +0000 Subject: [PATCH 332/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0a3c91a..64667ee 100644 --- a/README.md +++ b/README.md @@ -328,6 +328,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 11, 2025 | [1550](https://leetcode.com/problems/three-consecutive-odds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1550) | 🟢 Easy | | May 12, 2025 | [2094](https://leetcode.com/problems/finding-3-digit-even-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2094) | 🟢 Easy | | May 13, 2025 | [3335](https://leetcode.com/problems/total-characters-in-string-after-transformations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3335) | 🟡 Medium | +| May 14, 2025 | [3337](https://leetcode.com/problems/total-characters-in-string-after-transformations-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3337) | 🔴 Hard | # Join our discussion! From 40eea0a3090239f7e1e405b89241d09831944847 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 15 May 2025 00:34:12 +0000 Subject: [PATCH 333/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 64667ee..3a3e956 100644 --- a/README.md +++ b/README.md @@ -329,6 +329,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 12, 2025 | [2094](https://leetcode.com/problems/finding-3-digit-even-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2094) | 🟢 Easy | | May 13, 2025 | [3335](https://leetcode.com/problems/total-characters-in-string-after-transformations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3335) | 🟡 Medium | | May 14, 2025 | [3337](https://leetcode.com/problems/total-characters-in-string-after-transformations-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3337) | 🔴 Hard | +| May 15, 2025 | [2900](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2900) | 🟢 Easy | # Join our discussion! From 672739c1ea232bc1f82b1937c7c7bcfadaf65e5f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 16 May 2025 00:35:22 +0000 Subject: [PATCH 334/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3a3e956..c8b9a7f 100644 --- a/README.md +++ b/README.md @@ -330,6 +330,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 13, 2025 | [3335](https://leetcode.com/problems/total-characters-in-string-after-transformations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3335) | 🟡 Medium | | May 14, 2025 | [3337](https://leetcode.com/problems/total-characters-in-string-after-transformations-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3337) | 🔴 Hard | | May 15, 2025 | [2900](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2900) | 🟢 Easy | +| May 16, 2025 | [2901](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2901) | 🟡 Medium | # Join our discussion! From a263289d9e30bcd66b7ec404cfba366386ae70eb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 17 May 2025 00:34:13 +0000 Subject: [PATCH 335/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c8b9a7f..7c678cb 100644 --- a/README.md +++ b/README.md @@ -331,6 +331,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 14, 2025 | [3337](https://leetcode.com/problems/total-characters-in-string-after-transformations-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3337) | 🔴 Hard | | May 15, 2025 | [2900](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2900) | 🟢 Easy | | May 16, 2025 | [2901](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2901) | 🟡 Medium | +| May 17, 2025 | [75](https://leetcode.com/problems/sort-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/75) | 🟡 Medium | # Join our discussion! From cb82f754cdbefd74c7cea57ed36cc12c705a515b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 18 May 2025 00:38:00 +0000 Subject: [PATCH 336/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7c678cb..d5ce92c 100644 --- a/README.md +++ b/README.md @@ -332,6 +332,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 15, 2025 | [2900](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2900) | 🟢 Easy | | May 16, 2025 | [2901](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2901) | 🟡 Medium | | May 17, 2025 | [75](https://leetcode.com/problems/sort-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/75) | 🟡 Medium | +| May 18, 2025 | [1931](https://leetcode.com/problems/painting-a-grid-with-three-different-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1931) | 🔴 Hard | # Join our discussion! From 53bca98cff51a67e31c94f9a3ea131c47264eac4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 19 May 2025 00:37:22 +0000 Subject: [PATCH 337/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d5ce92c..a8001dc 100644 --- a/README.md +++ b/README.md @@ -333,6 +333,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 16, 2025 | [2901](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2901) | 🟡 Medium | | May 17, 2025 | [75](https://leetcode.com/problems/sort-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/75) | 🟡 Medium | | May 18, 2025 | [1931](https://leetcode.com/problems/painting-a-grid-with-three-different-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1931) | 🔴 Hard | +| May 19, 2025 | [3024](https://leetcode.com/problems/type-of-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3024) | 🟢 Easy | # Join our discussion! From fd95c28b681154e5ca7db3e03bae97c21580b88b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 20 May 2025 00:35:53 +0000 Subject: [PATCH 338/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a8001dc..51509d3 100644 --- a/README.md +++ b/README.md @@ -334,6 +334,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 17, 2025 | [75](https://leetcode.com/problems/sort-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/75) | 🟡 Medium | | May 18, 2025 | [1931](https://leetcode.com/problems/painting-a-grid-with-three-different-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1931) | 🔴 Hard | | May 19, 2025 | [3024](https://leetcode.com/problems/type-of-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3024) | 🟢 Easy | +| May 20, 2025 | [3355](https://leetcode.com/problems/zero-array-transformation-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3355) | 🟡 Medium | # Join our discussion! From 99940f7a74f3e1c11bfffc92d38dac0c3b205469 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 21 May 2025 00:35:22 +0000 Subject: [PATCH 339/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 51509d3..8760900 100644 --- a/README.md +++ b/README.md @@ -335,6 +335,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 18, 2025 | [1931](https://leetcode.com/problems/painting-a-grid-with-three-different-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1931) | 🔴 Hard | | May 19, 2025 | [3024](https://leetcode.com/problems/type-of-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3024) | 🟢 Easy | | May 20, 2025 | [3355](https://leetcode.com/problems/zero-array-transformation-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3355) | 🟡 Medium | +| May 21, 2025 | [73](https://leetcode.com/problems/set-matrix-zeroes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/73) | 🟡 Medium | # Join our discussion! From e2f3f2ea6a33c6c9bc53799f381fdd2c891fd406 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 22 May 2025 00:34:50 +0000 Subject: [PATCH 340/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8760900..fe89b2e 100644 --- a/README.md +++ b/README.md @@ -336,6 +336,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 19, 2025 | [3024](https://leetcode.com/problems/type-of-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3024) | 🟢 Easy | | May 20, 2025 | [3355](https://leetcode.com/problems/zero-array-transformation-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3355) | 🟡 Medium | | May 21, 2025 | [73](https://leetcode.com/problems/set-matrix-zeroes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/73) | 🟡 Medium | +| May 22, 2025 | [3362](https://leetcode.com/problems/zero-array-transformation-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3362) | 🟡 Medium | # Join our discussion! From 5bedc14ca365532a379277e804736d64f6ad5604 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 23 May 2025 00:35:12 +0000 Subject: [PATCH 341/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index fe89b2e..2b57aec 100644 --- a/README.md +++ b/README.md @@ -337,6 +337,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 20, 2025 | [3355](https://leetcode.com/problems/zero-array-transformation-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3355) | 🟡 Medium | | May 21, 2025 | [73](https://leetcode.com/problems/set-matrix-zeroes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/73) | 🟡 Medium | | May 22, 2025 | [3362](https://leetcode.com/problems/zero-array-transformation-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3362) | 🟡 Medium | +| May 23, 2025 | [3068](https://leetcode.com/problems/find-the-maximum-sum-of-node-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3068) | 🔴 Hard | # Join our discussion! From 72730838dde80b3f87a490e5bde585b612b037f2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 24 May 2025 00:33:34 +0000 Subject: [PATCH 342/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2b57aec..a3ea6b2 100644 --- a/README.md +++ b/README.md @@ -338,6 +338,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 21, 2025 | [73](https://leetcode.com/problems/set-matrix-zeroes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/73) | 🟡 Medium | | May 22, 2025 | [3362](https://leetcode.com/problems/zero-array-transformation-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3362) | 🟡 Medium | | May 23, 2025 | [3068](https://leetcode.com/problems/find-the-maximum-sum-of-node-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3068) | 🔴 Hard | +| May 24, 2025 | [2942](https://leetcode.com/problems/find-words-containing-character/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2942) | 🟢 Easy | # Join our discussion! From 2d455c34e6bb1b47b184c3a6efd0bc848fb80c2c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 25 May 2025 00:39:03 +0000 Subject: [PATCH 343/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a3ea6b2..02c3953 100644 --- a/README.md +++ b/README.md @@ -339,6 +339,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 22, 2025 | [3362](https://leetcode.com/problems/zero-array-transformation-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3362) | 🟡 Medium | | May 23, 2025 | [3068](https://leetcode.com/problems/find-the-maximum-sum-of-node-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3068) | 🔴 Hard | | May 24, 2025 | [2942](https://leetcode.com/problems/find-words-containing-character/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2942) | 🟢 Easy | +| May 25, 2025 | [2131](https://leetcode.com/problems/longest-palindrome-by-concatenating-two-letter-words/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2131) | 🟡 Medium | # Join our discussion! From 6a12562699a853955c410dac2b4e0ed3af4e28ed Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 26 May 2025 00:36:32 +0000 Subject: [PATCH 344/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 02c3953..934ccbe 100644 --- a/README.md +++ b/README.md @@ -340,6 +340,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 23, 2025 | [3068](https://leetcode.com/problems/find-the-maximum-sum-of-node-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3068) | 🔴 Hard | | May 24, 2025 | [2942](https://leetcode.com/problems/find-words-containing-character/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2942) | 🟢 Easy | | May 25, 2025 | [2131](https://leetcode.com/problems/longest-palindrome-by-concatenating-two-letter-words/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2131) | 🟡 Medium | +| May 26, 2025 | [1857](https://leetcode.com/problems/largest-color-value-in-a-directed-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1857) | 🔴 Hard | # Join our discussion! From 0e92d6a20543f18c32a7ae9513c99dfd1db67528 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 27 May 2025 00:34:38 +0000 Subject: [PATCH 345/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 934ccbe..d6e8f2d 100644 --- a/README.md +++ b/README.md @@ -341,6 +341,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 24, 2025 | [2942](https://leetcode.com/problems/find-words-containing-character/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2942) | 🟢 Easy | | May 25, 2025 | [2131](https://leetcode.com/problems/longest-palindrome-by-concatenating-two-letter-words/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2131) | 🟡 Medium | | May 26, 2025 | [1857](https://leetcode.com/problems/largest-color-value-in-a-directed-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1857) | 🔴 Hard | +| May 27, 2025 | [2894](https://leetcode.com/problems/divisible-and-non-divisible-sums-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2894) | 🟢 Easy | # Join our discussion! From ece0438c8993cd5842a36e95ebd6218adbe58671 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 28 May 2025 00:35:02 +0000 Subject: [PATCH 346/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d6e8f2d..eb828bc 100644 --- a/README.md +++ b/README.md @@ -342,6 +342,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 25, 2025 | [2131](https://leetcode.com/problems/longest-palindrome-by-concatenating-two-letter-words/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2131) | 🟡 Medium | | May 26, 2025 | [1857](https://leetcode.com/problems/largest-color-value-in-a-directed-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1857) | 🔴 Hard | | May 27, 2025 | [2894](https://leetcode.com/problems/divisible-and-non-divisible-sums-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2894) | 🟢 Easy | +| May 28, 2025 | [3372](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3372) | 🟡 Medium | # Join our discussion! From a9c512033ac710e684937e46d1c93a43474a45e8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 29 May 2025 00:35:17 +0000 Subject: [PATCH 347/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index eb828bc..ef4afa9 100644 --- a/README.md +++ b/README.md @@ -343,6 +343,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 26, 2025 | [1857](https://leetcode.com/problems/largest-color-value-in-a-directed-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1857) | 🔴 Hard | | May 27, 2025 | [2894](https://leetcode.com/problems/divisible-and-non-divisible-sums-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2894) | 🟢 Easy | | May 28, 2025 | [3372](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3372) | 🟡 Medium | +| May 29, 2025 | [3373](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3373) | 🔴 Hard | # Join our discussion! From 7f96f046376e5e49edd6865100f1f0460ec91e1e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 30 May 2025 00:35:04 +0000 Subject: [PATCH 348/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ef4afa9..2e02d51 100644 --- a/README.md +++ b/README.md @@ -344,6 +344,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 27, 2025 | [2894](https://leetcode.com/problems/divisible-and-non-divisible-sums-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2894) | 🟢 Easy | | May 28, 2025 | [3372](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3372) | 🟡 Medium | | May 29, 2025 | [3373](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3373) | 🔴 Hard | +| May 30, 2025 | [2359](https://leetcode.com/problems/find-closest-node-to-given-two-nodes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2359) | 🟡 Medium | # Join our discussion! From 1b540fd3720e0cd3b7d8ea319429f2fc914547ad Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 31 May 2025 00:34:27 +0000 Subject: [PATCH 349/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2e02d51..8832efb 100644 --- a/README.md +++ b/README.md @@ -345,6 +345,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 28, 2025 | [3372](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3372) | 🟡 Medium | | May 29, 2025 | [3373](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3373) | 🔴 Hard | | May 30, 2025 | [2359](https://leetcode.com/problems/find-closest-node-to-given-two-nodes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2359) | 🟡 Medium | +| May 31, 2025 | [909](https://leetcode.com/problems/snakes-and-ladders/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/909) | 🟡 Medium | # Join our discussion! From a75ea9f54278d8f079dadb043f0eb3fc437f0bff Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 1 Jun 2025 00:44:16 +0000 Subject: [PATCH 350/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8832efb..27c9fec 100644 --- a/README.md +++ b/README.md @@ -346,6 +346,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 29, 2025 | [3373](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3373) | 🔴 Hard | | May 30, 2025 | [2359](https://leetcode.com/problems/find-closest-node-to-given-two-nodes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2359) | 🟡 Medium | | May 31, 2025 | [909](https://leetcode.com/problems/snakes-and-ladders/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/909) | 🟡 Medium | +| June 1, 2025 | [2929](https://leetcode.com/problems/distribute-candies-among-children-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2929) | 🟡 Medium | # Join our discussion! From 4b517cd953748e6eb02785b8802ae33d5fb85612 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 2 Jun 2025 00:37:44 +0000 Subject: [PATCH 351/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 27c9fec..36eb9da 100644 --- a/README.md +++ b/README.md @@ -347,6 +347,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 30, 2025 | [2359](https://leetcode.com/problems/find-closest-node-to-given-two-nodes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2359) | 🟡 Medium | | May 31, 2025 | [909](https://leetcode.com/problems/snakes-and-ladders/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/909) | 🟡 Medium | | June 1, 2025 | [2929](https://leetcode.com/problems/distribute-candies-among-children-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2929) | 🟡 Medium | +| June 2, 2025 | [135](https://leetcode.com/problems/candy/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/135) | 🔴 Hard | # Join our discussion! From aa26cafc64b19a79013860afcd0e4c5e6207f815 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 3 Jun 2025 00:36:31 +0000 Subject: [PATCH 352/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 36eb9da..6ee39fe 100644 --- a/README.md +++ b/README.md @@ -348,6 +348,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | May 31, 2025 | [909](https://leetcode.com/problems/snakes-and-ladders/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/909) | 🟡 Medium | | June 1, 2025 | [2929](https://leetcode.com/problems/distribute-candies-among-children-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2929) | 🟡 Medium | | June 2, 2025 | [135](https://leetcode.com/problems/candy/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/135) | 🔴 Hard | +| June 3, 2025 | [1298](https://leetcode.com/problems/maximum-candies-you-can-get-from-boxes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1298) | 🔴 Hard | # Join our discussion! From 82a49d7c4d6d5ede8b5c7f6b72822d0dcfd5ab04 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 4 Jun 2025 00:36:03 +0000 Subject: [PATCH 353/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6ee39fe..7f3c1c6 100644 --- a/README.md +++ b/README.md @@ -349,6 +349,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 1, 2025 | [2929](https://leetcode.com/problems/distribute-candies-among-children-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2929) | 🟡 Medium | | June 2, 2025 | [135](https://leetcode.com/problems/candy/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/135) | 🔴 Hard | | June 3, 2025 | [1298](https://leetcode.com/problems/maximum-candies-you-can-get-from-boxes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1298) | 🔴 Hard | +| June 4, 2025 | [3403](https://leetcode.com/problems/find-the-lexicographically-largest-string-from-the-box-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3403) | 🟡 Medium | # Join our discussion! From 8e070df6774b9e4166da24a9691aa986f01e0c4f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 5 Jun 2025 00:35:44 +0000 Subject: [PATCH 354/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7f3c1c6..77fd660 100644 --- a/README.md +++ b/README.md @@ -350,6 +350,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 2, 2025 | [135](https://leetcode.com/problems/candy/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/135) | 🔴 Hard | | June 3, 2025 | [1298](https://leetcode.com/problems/maximum-candies-you-can-get-from-boxes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1298) | 🔴 Hard | | June 4, 2025 | [3403](https://leetcode.com/problems/find-the-lexicographically-largest-string-from-the-box-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3403) | 🟡 Medium | +| June 5, 2025 | [1061](https://leetcode.com/problems/lexicographically-smallest-equivalent-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1061) | 🟡 Medium | # Join our discussion! From 38e695015aef3fb5a4c42946887d229234281e3a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 6 Jun 2025 00:35:27 +0000 Subject: [PATCH 355/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 77fd660..f7fa4cf 100644 --- a/README.md +++ b/README.md @@ -351,6 +351,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 3, 2025 | [1298](https://leetcode.com/problems/maximum-candies-you-can-get-from-boxes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1298) | 🔴 Hard | | June 4, 2025 | [3403](https://leetcode.com/problems/find-the-lexicographically-largest-string-from-the-box-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3403) | 🟡 Medium | | June 5, 2025 | [1061](https://leetcode.com/problems/lexicographically-smallest-equivalent-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1061) | 🟡 Medium | +| June 6, 2025 | [2434](https://leetcode.com/problems/using-a-robot-to-print-the-lexicographically-smallest-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2434) | 🟡 Medium | # Join our discussion! From e392a8cf119cf1f08c9f22b5c5ddc6f4ccf0e205 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 7 Jun 2025 00:35:20 +0000 Subject: [PATCH 356/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f7fa4cf..0136f44 100644 --- a/README.md +++ b/README.md @@ -352,6 +352,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 4, 2025 | [3403](https://leetcode.com/problems/find-the-lexicographically-largest-string-from-the-box-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3403) | 🟡 Medium | | June 5, 2025 | [1061](https://leetcode.com/problems/lexicographically-smallest-equivalent-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1061) | 🟡 Medium | | June 6, 2025 | [2434](https://leetcode.com/problems/using-a-robot-to-print-the-lexicographically-smallest-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2434) | 🟡 Medium | +| June 7, 2025 | [3170](https://leetcode.com/problems/lexicographically-minimum-string-after-removing-stars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3170) | 🟡 Medium | # Join our discussion! From a3c5ec7e64c17e50ca805698d8880917ee3808bc Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 8 Jun 2025 00:39:45 +0000 Subject: [PATCH 357/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0136f44..78c4506 100644 --- a/README.md +++ b/README.md @@ -353,6 +353,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 5, 2025 | [1061](https://leetcode.com/problems/lexicographically-smallest-equivalent-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1061) | 🟡 Medium | | June 6, 2025 | [2434](https://leetcode.com/problems/using-a-robot-to-print-the-lexicographically-smallest-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2434) | 🟡 Medium | | June 7, 2025 | [3170](https://leetcode.com/problems/lexicographically-minimum-string-after-removing-stars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3170) | 🟡 Medium | +| June 8, 2025 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | # Join our discussion! From 427f8a06aafce062de029adb6bbf369ba4c19816 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 9 Jun 2025 00:38:18 +0000 Subject: [PATCH 358/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 78c4506..385d53e 100644 --- a/README.md +++ b/README.md @@ -354,6 +354,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 6, 2025 | [2434](https://leetcode.com/problems/using-a-robot-to-print-the-lexicographically-smallest-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2434) | 🟡 Medium | | June 7, 2025 | [3170](https://leetcode.com/problems/lexicographically-minimum-string-after-removing-stars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3170) | 🟡 Medium | | June 8, 2025 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | +| June 9, 2025 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | # Join our discussion! From 8cfb4f7c8067cf425966600b086910c337775682 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 10 Jun 2025 00:35:45 +0000 Subject: [PATCH 359/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 385d53e..dd803d6 100644 --- a/README.md +++ b/README.md @@ -355,6 +355,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 7, 2025 | [3170](https://leetcode.com/problems/lexicographically-minimum-string-after-removing-stars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3170) | 🟡 Medium | | June 8, 2025 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | | June 9, 2025 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | +| June 10, 2025 | [3442](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3442) | 🟢 Easy | # Join our discussion! From 3ab7b26ca20cc4db2dca859213cd4e057a2bf7ef Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 11 Jun 2025 00:35:49 +0000 Subject: [PATCH 360/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index dd803d6..e444421 100644 --- a/README.md +++ b/README.md @@ -356,6 +356,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 8, 2025 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | | June 9, 2025 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | | June 10, 2025 | [3442](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3442) | 🟢 Easy | +| June 11, 2025 | [3445](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3445) | 🔴 Hard | # Join our discussion! From 6fe798bb22d2e240a4fd305b889cf59ec22f3b5b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 12 Jun 2025 00:35:35 +0000 Subject: [PATCH 361/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e444421..57b5ae1 100644 --- a/README.md +++ b/README.md @@ -357,6 +357,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 9, 2025 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | | June 10, 2025 | [3442](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3442) | 🟢 Easy | | June 11, 2025 | [3445](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3445) | 🔴 Hard | +| June 12, 2025 | [3423](https://leetcode.com/problems/maximum-difference-between-adjacent-elements-in-a-circular-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3423) | 🟢 Easy | # Join our discussion! From 8b8a9b0c92bfb0ca122bce7579a26d08b1f91d2c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 13 Jun 2025 00:36:03 +0000 Subject: [PATCH 362/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 57b5ae1..a7ab2fc 100644 --- a/README.md +++ b/README.md @@ -358,6 +358,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 10, 2025 | [3442](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3442) | 🟢 Easy | | June 11, 2025 | [3445](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3445) | 🔴 Hard | | June 12, 2025 | [3423](https://leetcode.com/problems/maximum-difference-between-adjacent-elements-in-a-circular-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3423) | 🟢 Easy | +| June 13, 2025 | [2616](https://leetcode.com/problems/minimize-the-maximum-difference-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2616) | 🟡 Medium | # Join our discussion! From 88684383996f9941e74d1978e39d05448dd9a635 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 14 Jun 2025 00:34:44 +0000 Subject: [PATCH 363/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a7ab2fc..4df385b 100644 --- a/README.md +++ b/README.md @@ -359,6 +359,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 11, 2025 | [3445](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3445) | 🔴 Hard | | June 12, 2025 | [3423](https://leetcode.com/problems/maximum-difference-between-adjacent-elements-in-a-circular-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3423) | 🟢 Easy | | June 13, 2025 | [2616](https://leetcode.com/problems/minimize-the-maximum-difference-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2616) | 🟡 Medium | +| June 14, 2025 | [2566](https://leetcode.com/problems/maximum-difference-by-remapping-a-digit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2566) | 🟢 Easy | # Join our discussion! From 00b2f14b1dbc056977169162bdcfd8566d8b3305 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 15 Jun 2025 00:40:22 +0000 Subject: [PATCH 364/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4df385b..ee4f63d 100644 --- a/README.md +++ b/README.md @@ -360,6 +360,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 12, 2025 | [3423](https://leetcode.com/problems/maximum-difference-between-adjacent-elements-in-a-circular-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3423) | 🟢 Easy | | June 13, 2025 | [2616](https://leetcode.com/problems/minimize-the-maximum-difference-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2616) | 🟡 Medium | | June 14, 2025 | [2566](https://leetcode.com/problems/maximum-difference-by-remapping-a-digit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2566) | 🟢 Easy | +| June 15, 2025 | [1432](https://leetcode.com/problems/max-difference-you-can-get-from-changing-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1432) | 🟡 Medium | # Join our discussion! From 3c5551cd343dad1be798c79fdbd2b7d7bf4fab85 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 16 Jun 2025 00:37:50 +0000 Subject: [PATCH 365/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ee4f63d..260eb3d 100644 --- a/README.md +++ b/README.md @@ -361,6 +361,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 13, 2025 | [2616](https://leetcode.com/problems/minimize-the-maximum-difference-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2616) | 🟡 Medium | | June 14, 2025 | [2566](https://leetcode.com/problems/maximum-difference-by-remapping-a-digit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2566) | 🟢 Easy | | June 15, 2025 | [1432](https://leetcode.com/problems/max-difference-you-can-get-from-changing-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1432) | 🟡 Medium | +| June 16, 2025 | [2016](https://leetcode.com/problems/maximum-difference-between-increasing-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2016) | 🟢 Easy | # Join our discussion! From 9ae1908a8b1c81563ecae4dc3b56f0f6b3a51d4a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 17 Jun 2025 00:35:44 +0000 Subject: [PATCH 366/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 260eb3d..f462d52 100644 --- a/README.md +++ b/README.md @@ -362,6 +362,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 14, 2025 | [2566](https://leetcode.com/problems/maximum-difference-by-remapping-a-digit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2566) | 🟢 Easy | | June 15, 2025 | [1432](https://leetcode.com/problems/max-difference-you-can-get-from-changing-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1432) | 🟡 Medium | | June 16, 2025 | [2016](https://leetcode.com/problems/maximum-difference-between-increasing-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2016) | 🟢 Easy | +| June 17, 2025 | [3405](https://leetcode.com/problems/count-the-number-of-arrays-with-k-matching-adjacent-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3405) | 🔴 Hard | # Join our discussion! From 04a921f7441430e9b38eae1f6ff42fc0997bf0bc Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 18 Jun 2025 00:35:45 +0000 Subject: [PATCH 367/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f462d52..7f13212 100644 --- a/README.md +++ b/README.md @@ -363,6 +363,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 15, 2025 | [1432](https://leetcode.com/problems/max-difference-you-can-get-from-changing-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1432) | 🟡 Medium | | June 16, 2025 | [2016](https://leetcode.com/problems/maximum-difference-between-increasing-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2016) | 🟢 Easy | | June 17, 2025 | [3405](https://leetcode.com/problems/count-the-number-of-arrays-with-k-matching-adjacent-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3405) | 🔴 Hard | +| June 18, 2025 | [2966](https://leetcode.com/problems/divide-array-into-arrays-with-max-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2966) | 🟡 Medium | # Join our discussion! From e47b29c8292729bab7e44f6b33cfb1a6da094e70 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 19 Jun 2025 00:36:10 +0000 Subject: [PATCH 368/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7f13212..be304e8 100644 --- a/README.md +++ b/README.md @@ -364,6 +364,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 16, 2025 | [2016](https://leetcode.com/problems/maximum-difference-between-increasing-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2016) | 🟢 Easy | | June 17, 2025 | [3405](https://leetcode.com/problems/count-the-number-of-arrays-with-k-matching-adjacent-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3405) | 🔴 Hard | | June 18, 2025 | [2966](https://leetcode.com/problems/divide-array-into-arrays-with-max-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2966) | 🟡 Medium | +| June 19, 2025 | [2294](https://leetcode.com/problems/partition-array-such-that-maximum-difference-is-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2294) | 🟡 Medium | # Join our discussion! From 3e53e11b935d71f4f45e668db222cee01e7afe18 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 20 Jun 2025 00:35:54 +0000 Subject: [PATCH 369/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index be304e8..cf2a473 100644 --- a/README.md +++ b/README.md @@ -365,6 +365,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 17, 2025 | [3405](https://leetcode.com/problems/count-the-number-of-arrays-with-k-matching-adjacent-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3405) | 🔴 Hard | | June 18, 2025 | [2966](https://leetcode.com/problems/divide-array-into-arrays-with-max-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2966) | 🟡 Medium | | June 19, 2025 | [2294](https://leetcode.com/problems/partition-array-such-that-maximum-difference-is-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2294) | 🟡 Medium | +| June 20, 2025 | [3443](https://leetcode.com/problems/maximum-manhattan-distance-after-k-changes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3443) | 🟡 Medium | # Join our discussion! From ce4d79ed2953e6d47e13a18032e211d1c3eeb1cb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 21 Jun 2025 00:35:32 +0000 Subject: [PATCH 370/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index cf2a473..a692054 100644 --- a/README.md +++ b/README.md @@ -366,6 +366,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 18, 2025 | [2966](https://leetcode.com/problems/divide-array-into-arrays-with-max-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2966) | 🟡 Medium | | June 19, 2025 | [2294](https://leetcode.com/problems/partition-array-such-that-maximum-difference-is-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2294) | 🟡 Medium | | June 20, 2025 | [3443](https://leetcode.com/problems/maximum-manhattan-distance-after-k-changes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3443) | 🟡 Medium | +| June 21, 2025 | [3085](https://leetcode.com/problems/minimum-deletions-to-make-string-k-special/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3085) | 🟡 Medium | # Join our discussion! From 6bc5a83d645d8d4ef850f6c41a97161b3074e1ee Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 22 Jun 2025 00:40:04 +0000 Subject: [PATCH 371/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a692054..8102537 100644 --- a/README.md +++ b/README.md @@ -367,6 +367,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 19, 2025 | [2294](https://leetcode.com/problems/partition-array-such-that-maximum-difference-is-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2294) | 🟡 Medium | | June 20, 2025 | [3443](https://leetcode.com/problems/maximum-manhattan-distance-after-k-changes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3443) | 🟡 Medium | | June 21, 2025 | [3085](https://leetcode.com/problems/minimum-deletions-to-make-string-k-special/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3085) | 🟡 Medium | +| June 22, 2025 | [2138](https://leetcode.com/problems/divide-a-string-into-groups-of-size-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2138) | 🟢 Easy | # Join our discussion! From 423c99b0e19e4f309342a5b6b24164c385d9ad2c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 23 Jun 2025 00:38:55 +0000 Subject: [PATCH 372/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8102537..b74c305 100644 --- a/README.md +++ b/README.md @@ -368,6 +368,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 20, 2025 | [3443](https://leetcode.com/problems/maximum-manhattan-distance-after-k-changes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3443) | 🟡 Medium | | June 21, 2025 | [3085](https://leetcode.com/problems/minimum-deletions-to-make-string-k-special/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3085) | 🟡 Medium | | June 22, 2025 | [2138](https://leetcode.com/problems/divide-a-string-into-groups-of-size-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2138) | 🟢 Easy | +| June 23, 2025 | [2081](https://leetcode.com/problems/sum-of-k-mirror-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2081) | 🔴 Hard | # Join our discussion! From a490b40cc57a61e33756db1b7415b86eca13cd60 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 24 Jun 2025 00:36:07 +0000 Subject: [PATCH 373/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b74c305..5b27fa9 100644 --- a/README.md +++ b/README.md @@ -369,6 +369,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 21, 2025 | [3085](https://leetcode.com/problems/minimum-deletions-to-make-string-k-special/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3085) | 🟡 Medium | | June 22, 2025 | [2138](https://leetcode.com/problems/divide-a-string-into-groups-of-size-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2138) | 🟢 Easy | | June 23, 2025 | [2081](https://leetcode.com/problems/sum-of-k-mirror-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2081) | 🔴 Hard | +| June 24, 2025 | [2200](https://leetcode.com/problems/find-all-k-distant-indices-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2200) | 🟢 Easy | # Join our discussion! From 49e43e7da15bcacb1b0c8a1da7c19b714d124f3b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 25 Jun 2025 00:36:34 +0000 Subject: [PATCH 374/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5b27fa9..e900fa9 100644 --- a/README.md +++ b/README.md @@ -370,6 +370,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 22, 2025 | [2138](https://leetcode.com/problems/divide-a-string-into-groups-of-size-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2138) | 🟢 Easy | | June 23, 2025 | [2081](https://leetcode.com/problems/sum-of-k-mirror-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2081) | 🔴 Hard | | June 24, 2025 | [2200](https://leetcode.com/problems/find-all-k-distant-indices-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2200) | 🟢 Easy | +| June 25, 2025 | [2040](https://leetcode.com/problems/kth-smallest-product-of-two-sorted-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2040) | 🔴 Hard | # Join our discussion! From 38a3abdb4eb4d5ded5228022b22dc03632731ab4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 26 Jun 2025 00:35:50 +0000 Subject: [PATCH 375/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e900fa9..d206817 100644 --- a/README.md +++ b/README.md @@ -371,6 +371,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 23, 2025 | [2081](https://leetcode.com/problems/sum-of-k-mirror-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2081) | 🔴 Hard | | June 24, 2025 | [2200](https://leetcode.com/problems/find-all-k-distant-indices-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2200) | 🟢 Easy | | June 25, 2025 | [2040](https://leetcode.com/problems/kth-smallest-product-of-two-sorted-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2040) | 🔴 Hard | +| June 26, 2025 | [2311](https://leetcode.com/problems/longest-binary-subsequence-less-than-or-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2311) | 🟡 Medium | # Join our discussion! From a7861d51f92e884a36fc21300e1adc72a17c3688 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 27 Jun 2025 00:36:49 +0000 Subject: [PATCH 376/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d206817..cea30b6 100644 --- a/README.md +++ b/README.md @@ -372,6 +372,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 24, 2025 | [2200](https://leetcode.com/problems/find-all-k-distant-indices-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2200) | 🟢 Easy | | June 25, 2025 | [2040](https://leetcode.com/problems/kth-smallest-product-of-two-sorted-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2040) | 🔴 Hard | | June 26, 2025 | [2311](https://leetcode.com/problems/longest-binary-subsequence-less-than-or-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2311) | 🟡 Medium | +| June 27, 2025 | [2014](https://leetcode.com/problems/longest-subsequence-repeated-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2014) | 🔴 Hard | # Join our discussion! From 43a3c24a9344079db4d45f34902d167d26c97486 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 28 Jun 2025 00:34:55 +0000 Subject: [PATCH 377/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index cea30b6..e5a222f 100644 --- a/README.md +++ b/README.md @@ -373,6 +373,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 25, 2025 | [2040](https://leetcode.com/problems/kth-smallest-product-of-two-sorted-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2040) | 🔴 Hard | | June 26, 2025 | [2311](https://leetcode.com/problems/longest-binary-subsequence-less-than-or-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2311) | 🟡 Medium | | June 27, 2025 | [2014](https://leetcode.com/problems/longest-subsequence-repeated-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2014) | 🔴 Hard | +| June 28, 2025 | [2099](https://leetcode.com/problems/find-subsequence-of-length-k-with-the-largest-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2099) | 🟢 Easy | # Join our discussion! From 25d3743824838c16cfe2243797ac51b739811b2e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 29 Jun 2025 00:40:58 +0000 Subject: [PATCH 378/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e5a222f..bff2e04 100644 --- a/README.md +++ b/README.md @@ -374,6 +374,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 26, 2025 | [2311](https://leetcode.com/problems/longest-binary-subsequence-less-than-or-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2311) | 🟡 Medium | | June 27, 2025 | [2014](https://leetcode.com/problems/longest-subsequence-repeated-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2014) | 🔴 Hard | | June 28, 2025 | [2099](https://leetcode.com/problems/find-subsequence-of-length-k-with-the-largest-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2099) | 🟢 Easy | +| June 29, 2025 | [1498](https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1498) | 🟡 Medium | # Join our discussion! From d50f21daf77344d5351e0e745edea16ad7c71cf8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 30 Jun 2025 00:39:10 +0000 Subject: [PATCH 379/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index bff2e04..8f8d510 100644 --- a/README.md +++ b/README.md @@ -375,6 +375,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 27, 2025 | [2014](https://leetcode.com/problems/longest-subsequence-repeated-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2014) | 🔴 Hard | | June 28, 2025 | [2099](https://leetcode.com/problems/find-subsequence-of-length-k-with-the-largest-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2099) | 🟢 Easy | | June 29, 2025 | [1498](https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1498) | 🟡 Medium | +| June 30, 2025 | [594](https://leetcode.com/problems/longest-harmonious-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/594) | 🟢 Easy | # Join our discussion! From ae660d33bf7d93fd7195ea147ce29f18d62956e3 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 1 Jul 2025 00:41:44 +0000 Subject: [PATCH 380/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8f8d510..4373334 100644 --- a/README.md +++ b/README.md @@ -376,6 +376,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 28, 2025 | [2099](https://leetcode.com/problems/find-subsequence-of-length-k-with-the-largest-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2099) | 🟢 Easy | | June 29, 2025 | [1498](https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1498) | 🟡 Medium | | June 30, 2025 | [594](https://leetcode.com/problems/longest-harmonious-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/594) | 🟢 Easy | +| July 1, 2025 | [3330](https://leetcode.com/problems/find-the-original-typed-string-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3330) | 🟢 Easy | # Join our discussion! From 8399cee8e4c3a8ff6f9bf99cbfe557f7352d7af1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 2 Jul 2025 00:36:18 +0000 Subject: [PATCH 381/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4373334..84f6c2c 100644 --- a/README.md +++ b/README.md @@ -377,6 +377,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 29, 2025 | [1498](https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1498) | 🟡 Medium | | June 30, 2025 | [594](https://leetcode.com/problems/longest-harmonious-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/594) | 🟢 Easy | | July 1, 2025 | [3330](https://leetcode.com/problems/find-the-original-typed-string-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3330) | 🟢 Easy | +| July 2, 2025 | [3333](https://leetcode.com/problems/find-the-original-typed-string-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3333) | 🔴 Hard | # Join our discussion! From 95c14620885e33a845d7abb44728f7aec5c81620 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 3 Jul 2025 00:36:34 +0000 Subject: [PATCH 382/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 84f6c2c..7a63767 100644 --- a/README.md +++ b/README.md @@ -378,6 +378,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | June 30, 2025 | [594](https://leetcode.com/problems/longest-harmonious-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/594) | 🟢 Easy | | July 1, 2025 | [3330](https://leetcode.com/problems/find-the-original-typed-string-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3330) | 🟢 Easy | | July 2, 2025 | [3333](https://leetcode.com/problems/find-the-original-typed-string-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3333) | 🔴 Hard | +| July 3, 2025 | [3304](https://leetcode.com/problems/find-the-k-th-character-in-string-game-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3304) | 🟢 Easy | # Join our discussion! From 97e7357921e4060c64d4862e2008b2b7db49edd0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 4 Jul 2025 00:35:54 +0000 Subject: [PATCH 383/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7a63767..ac2d5d0 100644 --- a/README.md +++ b/README.md @@ -379,6 +379,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 1, 2025 | [3330](https://leetcode.com/problems/find-the-original-typed-string-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3330) | 🟢 Easy | | July 2, 2025 | [3333](https://leetcode.com/problems/find-the-original-typed-string-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3333) | 🔴 Hard | | July 3, 2025 | [3304](https://leetcode.com/problems/find-the-k-th-character-in-string-game-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3304) | 🟢 Easy | +| July 4, 2025 | [3307](https://leetcode.com/problems/find-the-k-th-character-in-string-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3307) | 🔴 Hard | # Join our discussion! From 8d883ee8f5475caeb0d0f1f6ae06a596c55bfaab Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 5 Jul 2025 00:34:34 +0000 Subject: [PATCH 384/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ac2d5d0..a4b3033 100644 --- a/README.md +++ b/README.md @@ -380,6 +380,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 2, 2025 | [3333](https://leetcode.com/problems/find-the-original-typed-string-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3333) | 🔴 Hard | | July 3, 2025 | [3304](https://leetcode.com/problems/find-the-k-th-character-in-string-game-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3304) | 🟢 Easy | | July 4, 2025 | [3307](https://leetcode.com/problems/find-the-k-th-character-in-string-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3307) | 🔴 Hard | +| July 5, 2025 | [1394](https://leetcode.com/problems/find-lucky-integer-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1394) | 🟢 Easy | # Join our discussion! From f5d08ac2541d8916c5f2c8e81579444db809a316 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 6 Jul 2025 00:40:23 +0000 Subject: [PATCH 385/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a4b3033..b570cb2 100644 --- a/README.md +++ b/README.md @@ -381,6 +381,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 3, 2025 | [3304](https://leetcode.com/problems/find-the-k-th-character-in-string-game-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3304) | 🟢 Easy | | July 4, 2025 | [3307](https://leetcode.com/problems/find-the-k-th-character-in-string-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3307) | 🔴 Hard | | July 5, 2025 | [1394](https://leetcode.com/problems/find-lucky-integer-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1394) | 🟢 Easy | +| July 6, 2025 | [1865](https://leetcode.com/problems/finding-pairs-with-a-certain-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1865) | 🟡 Medium | # Join our discussion! From 31f887abd1ad1228917fb5b24c8d296dd2ace4ff Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 7 Jul 2025 00:39:21 +0000 Subject: [PATCH 386/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b570cb2..10805e4 100644 --- a/README.md +++ b/README.md @@ -382,6 +382,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 4, 2025 | [3307](https://leetcode.com/problems/find-the-k-th-character-in-string-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3307) | 🔴 Hard | | July 5, 2025 | [1394](https://leetcode.com/problems/find-lucky-integer-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1394) | 🟢 Easy | | July 6, 2025 | [1865](https://leetcode.com/problems/finding-pairs-with-a-certain-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1865) | 🟡 Medium | +| July 7, 2025 | [1353](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1353) | 🟡 Medium | # Join our discussion! From 2a95f12da92e3f71443fb73c30262f23ac23e375 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 8 Jul 2025 00:36:17 +0000 Subject: [PATCH 387/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 10805e4..1e9c830 100644 --- a/README.md +++ b/README.md @@ -383,6 +383,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 5, 2025 | [1394](https://leetcode.com/problems/find-lucky-integer-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1394) | 🟢 Easy | | July 6, 2025 | [1865](https://leetcode.com/problems/finding-pairs-with-a-certain-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1865) | 🟡 Medium | | July 7, 2025 | [1353](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1353) | 🟡 Medium | +| July 8, 2025 | [1751](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1751) | 🔴 Hard | # Join our discussion! From cac78bc2db094757dddcf07ad11823e131b0a232 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 9 Jul 2025 00:37:19 +0000 Subject: [PATCH 388/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1e9c830..a8ed1bd 100644 --- a/README.md +++ b/README.md @@ -384,6 +384,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 6, 2025 | [1865](https://leetcode.com/problems/finding-pairs-with-a-certain-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1865) | 🟡 Medium | | July 7, 2025 | [1353](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1353) | 🟡 Medium | | July 8, 2025 | [1751](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1751) | 🔴 Hard | +| July 9, 2025 | [3439](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3439) | 🟡 Medium | # Join our discussion! From e05bf8d603adb35e9b8b08beb97a57e6b42ea220 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 10 Jul 2025 00:36:38 +0000 Subject: [PATCH 389/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a8ed1bd..f2b7f4b 100644 --- a/README.md +++ b/README.md @@ -385,6 +385,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 7, 2025 | [1353](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1353) | 🟡 Medium | | July 8, 2025 | [1751](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1751) | 🔴 Hard | | July 9, 2025 | [3439](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3439) | 🟡 Medium | +| July 10, 2025 | [3440](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3440) | 🟡 Medium | # Join our discussion! From bb6e6ae164e31fffa9f44a5a2b27a0a4303a5175 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 11 Jul 2025 00:37:19 +0000 Subject: [PATCH 390/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f2b7f4b..6f42671 100644 --- a/README.md +++ b/README.md @@ -386,6 +386,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 8, 2025 | [1751](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1751) | 🔴 Hard | | July 9, 2025 | [3439](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3439) | 🟡 Medium | | July 10, 2025 | [3440](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3440) | 🟡 Medium | +| July 11, 2025 | [2402](https://leetcode.com/problems/meeting-rooms-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2402) | 🔴 Hard | # Join our discussion! From 04fefb3e694ffd770852168e8ebab76b7601f4ca Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 12 Jul 2025 00:37:24 +0000 Subject: [PATCH 391/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6f42671..9bb764a 100644 --- a/README.md +++ b/README.md @@ -387,6 +387,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 9, 2025 | [3439](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3439) | 🟡 Medium | | July 10, 2025 | [3440](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3440) | 🟡 Medium | | July 11, 2025 | [2402](https://leetcode.com/problems/meeting-rooms-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2402) | 🔴 Hard | +| July 12, 2025 | [1900](https://leetcode.com/problems/the-earliest-and-latest-rounds-where-players-compete/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1900) | 🔴 Hard | # Join our discussion! From bc6559e715e0bd011021c938d9d59887d10efe24 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 13 Jul 2025 00:41:45 +0000 Subject: [PATCH 392/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9bb764a..17517d6 100644 --- a/README.md +++ b/README.md @@ -388,6 +388,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 10, 2025 | [3440](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3440) | 🟡 Medium | | July 11, 2025 | [2402](https://leetcode.com/problems/meeting-rooms-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2402) | 🔴 Hard | | July 12, 2025 | [1900](https://leetcode.com/problems/the-earliest-and-latest-rounds-where-players-compete/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1900) | 🔴 Hard | +| July 13, 2025 | [2410](https://leetcode.com/problems/maximum-matching-of-players-with-trainers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2410) | 🟡 Medium | # Join our discussion! From 665d9ee17a8319bc2e0fc01c626fb38c47cb4f30 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 14 Jul 2025 00:39:46 +0000 Subject: [PATCH 393/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 17517d6..76dfa3e 100644 --- a/README.md +++ b/README.md @@ -389,6 +389,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 11, 2025 | [2402](https://leetcode.com/problems/meeting-rooms-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2402) | 🔴 Hard | | July 12, 2025 | [1900](https://leetcode.com/problems/the-earliest-and-latest-rounds-where-players-compete/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1900) | 🔴 Hard | | July 13, 2025 | [2410](https://leetcode.com/problems/maximum-matching-of-players-with-trainers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2410) | 🟡 Medium | +| July 14, 2025 | [1290](https://leetcode.com/problems/convert-binary-number-in-a-linked-list-to-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1290) | 🟢 Easy | # Join our discussion! From 6f2ea3af1430d23e4d3512da353604b1691e717e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 15 Jul 2025 00:38:26 +0000 Subject: [PATCH 394/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 76dfa3e..7430aa8 100644 --- a/README.md +++ b/README.md @@ -390,6 +390,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 12, 2025 | [1900](https://leetcode.com/problems/the-earliest-and-latest-rounds-where-players-compete/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1900) | 🔴 Hard | | July 13, 2025 | [2410](https://leetcode.com/problems/maximum-matching-of-players-with-trainers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2410) | 🟡 Medium | | July 14, 2025 | [1290](https://leetcode.com/problems/convert-binary-number-in-a-linked-list-to-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1290) | 🟢 Easy | +| July 15, 2025 | [3136](https://leetcode.com/problems/valid-word/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3136) | 🟢 Easy | # Join our discussion! From 5926ce8263f5a37bceff6a3ee7e3d5aa5e95de24 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 16 Jul 2025 00:37:35 +0000 Subject: [PATCH 395/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7430aa8..c173ff8 100644 --- a/README.md +++ b/README.md @@ -391,6 +391,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 13, 2025 | [2410](https://leetcode.com/problems/maximum-matching-of-players-with-trainers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2410) | 🟡 Medium | | July 14, 2025 | [1290](https://leetcode.com/problems/convert-binary-number-in-a-linked-list-to-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1290) | 🟢 Easy | | July 15, 2025 | [3136](https://leetcode.com/problems/valid-word/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3136) | 🟢 Easy | +| July 16, 2025 | [3201](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3201) | 🟡 Medium | # Join our discussion! From 54b06cf199a904e1f5e20d96bad9fc0c9d1ac75d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 17 Jul 2025 00:38:04 +0000 Subject: [PATCH 396/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c173ff8..7f7c879 100644 --- a/README.md +++ b/README.md @@ -392,6 +392,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 14, 2025 | [1290](https://leetcode.com/problems/convert-binary-number-in-a-linked-list-to-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1290) | 🟢 Easy | | July 15, 2025 | [3136](https://leetcode.com/problems/valid-word/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3136) | 🟢 Easy | | July 16, 2025 | [3201](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3201) | 🟡 Medium | +| July 17, 2025 | [3202](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3202) | 🟡 Medium | # Join our discussion! From 012957c90c837ea8e0a7895a1974ce83723db035 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 18 Jul 2025 00:37:26 +0000 Subject: [PATCH 397/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7f7c879..4bd1d82 100644 --- a/README.md +++ b/README.md @@ -393,6 +393,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 15, 2025 | [3136](https://leetcode.com/problems/valid-word/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3136) | 🟢 Easy | | July 16, 2025 | [3201](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3201) | 🟡 Medium | | July 17, 2025 | [3202](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3202) | 🟡 Medium | +| July 18, 2025 | [2163](https://leetcode.com/problems/minimum-difference-in-sums-after-removal-of-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2163) | 🔴 Hard | # Join our discussion! From d72b3f23a3dac2206c7e1375f0c782a764aaca8a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 19 Jul 2025 00:37:07 +0000 Subject: [PATCH 398/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4bd1d82..62be121 100644 --- a/README.md +++ b/README.md @@ -394,6 +394,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 16, 2025 | [3201](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3201) | 🟡 Medium | | July 17, 2025 | [3202](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3202) | 🟡 Medium | | July 18, 2025 | [2163](https://leetcode.com/problems/minimum-difference-in-sums-after-removal-of-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2163) | 🔴 Hard | +| July 19, 2025 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | # Join our discussion! From c4d76a4f4026296e24480e11de54c493661f6bcf Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 20 Jul 2025 00:42:23 +0000 Subject: [PATCH 399/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 62be121..1e3834a 100644 --- a/README.md +++ b/README.md @@ -395,6 +395,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 17, 2025 | [3202](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3202) | 🟡 Medium | | July 18, 2025 | [2163](https://leetcode.com/problems/minimum-difference-in-sums-after-removal-of-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2163) | 🔴 Hard | | July 19, 2025 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | +| July 20, 2025 | [1948](https://leetcode.com/problems/delete-duplicate-folders-in-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1948) | 🔴 Hard | # Join our discussion! From 6769c8d28e10141bf006def2ddd24b8c4c4aa26b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 21 Jul 2025 00:40:52 +0000 Subject: [PATCH 400/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1e3834a..c698b28 100644 --- a/README.md +++ b/README.md @@ -396,6 +396,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 18, 2025 | [2163](https://leetcode.com/problems/minimum-difference-in-sums-after-removal-of-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2163) | 🔴 Hard | | July 19, 2025 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | | July 20, 2025 | [1948](https://leetcode.com/problems/delete-duplicate-folders-in-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1948) | 🔴 Hard | +| July 21, 2025 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | # Join our discussion! From e516ce708720f32b7d6afe00110336df5c4ecfcb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 22 Jul 2025 00:38:15 +0000 Subject: [PATCH 401/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c698b28..ba95ed8 100644 --- a/README.md +++ b/README.md @@ -397,6 +397,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 19, 2025 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | | July 20, 2025 | [1948](https://leetcode.com/problems/delete-duplicate-folders-in-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1948) | 🔴 Hard | | July 21, 2025 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | +| July 22, 2025 | [1695](https://leetcode.com/problems/maximum-erasure-value/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1695) | 🟡 Medium | # Join our discussion! From dc4746056dd736832e8a020a6e59643a2581f845 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 23 Jul 2025 00:38:23 +0000 Subject: [PATCH 402/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ba95ed8..2453151 100644 --- a/README.md +++ b/README.md @@ -398,6 +398,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 20, 2025 | [1948](https://leetcode.com/problems/delete-duplicate-folders-in-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1948) | 🔴 Hard | | July 21, 2025 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | | July 22, 2025 | [1695](https://leetcode.com/problems/maximum-erasure-value/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1695) | 🟡 Medium | +| July 23, 2025 | [1717](https://leetcode.com/problems/maximum-score-from-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1717) | 🟡 Medium | # Join our discussion! From 8e69909ccb3519158eae7f4693ad57b160e044f8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 24 Jul 2025 00:38:21 +0000 Subject: [PATCH 403/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2453151..d72d076 100644 --- a/README.md +++ b/README.md @@ -399,6 +399,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 21, 2025 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | | July 22, 2025 | [1695](https://leetcode.com/problems/maximum-erasure-value/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1695) | 🟡 Medium | | July 23, 2025 | [1717](https://leetcode.com/problems/maximum-score-from-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1717) | 🟡 Medium | +| July 24, 2025 | [2322](https://leetcode.com/problems/minimum-score-after-removals-on-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2322) | 🔴 Hard | # Join our discussion! From 12867d9fe3d0a333ff76555947675cf92fd9afc0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 25 Jul 2025 00:38:13 +0000 Subject: [PATCH 404/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d72d076..dcf27dc 100644 --- a/README.md +++ b/README.md @@ -400,6 +400,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 22, 2025 | [1695](https://leetcode.com/problems/maximum-erasure-value/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1695) | 🟡 Medium | | July 23, 2025 | [1717](https://leetcode.com/problems/maximum-score-from-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1717) | 🟡 Medium | | July 24, 2025 | [2322](https://leetcode.com/problems/minimum-score-after-removals-on-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2322) | 🔴 Hard | +| July 25, 2025 | [3487](https://leetcode.com/problems/maximum-unique-subarray-sum-after-deletion/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3487) | 🟢 Easy | # Join our discussion! From cbef7f29d064f9b4691b2d271e66d2d249206379 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 26 Jul 2025 00:36:43 +0000 Subject: [PATCH 405/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index dcf27dc..83ea591 100644 --- a/README.md +++ b/README.md @@ -401,6 +401,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 23, 2025 | [1717](https://leetcode.com/problems/maximum-score-from-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1717) | 🟡 Medium | | July 24, 2025 | [2322](https://leetcode.com/problems/minimum-score-after-removals-on-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2322) | 🔴 Hard | | July 25, 2025 | [3487](https://leetcode.com/problems/maximum-unique-subarray-sum-after-deletion/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3487) | 🟢 Easy | +| July 26, 2025 | [3480](https://leetcode.com/problems/maximize-subarrays-after-removing-one-conflicting-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3480) | 🔴 Hard | # Join our discussion! From eda17a67f497fdfa93df0ce92a5e1b3cf7c66589 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 27 Jul 2025 00:42:23 +0000 Subject: [PATCH 406/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 83ea591..7812286 100644 --- a/README.md +++ b/README.md @@ -402,6 +402,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 24, 2025 | [2322](https://leetcode.com/problems/minimum-score-after-removals-on-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2322) | 🔴 Hard | | July 25, 2025 | [3487](https://leetcode.com/problems/maximum-unique-subarray-sum-after-deletion/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3487) | 🟢 Easy | | July 26, 2025 | [3480](https://leetcode.com/problems/maximize-subarrays-after-removing-one-conflicting-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3480) | 🔴 Hard | +| July 27, 2025 | [2210](https://leetcode.com/problems/count-hills-and-valleys-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2210) | 🟢 Easy | # Join our discussion! From 13987ae92b5ae342e49b1271a7365e2ef3f887ca Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 28 Jul 2025 00:41:25 +0000 Subject: [PATCH 407/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7812286..987393d 100644 --- a/README.md +++ b/README.md @@ -403,6 +403,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 25, 2025 | [3487](https://leetcode.com/problems/maximum-unique-subarray-sum-after-deletion/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3487) | 🟢 Easy | | July 26, 2025 | [3480](https://leetcode.com/problems/maximize-subarrays-after-removing-one-conflicting-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3480) | 🔴 Hard | | July 27, 2025 | [2210](https://leetcode.com/problems/count-hills-and-valleys-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2210) | 🟢 Easy | +| July 28, 2025 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | # Join our discussion! From 69cfc119a8370c4ba3a8e63989e96f75f14c005f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 29 Jul 2025 00:42:10 +0000 Subject: [PATCH 408/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 987393d..3036c5c 100644 --- a/README.md +++ b/README.md @@ -404,6 +404,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 26, 2025 | [3480](https://leetcode.com/problems/maximize-subarrays-after-removing-one-conflicting-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3480) | 🔴 Hard | | July 27, 2025 | [2210](https://leetcode.com/problems/count-hills-and-valleys-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2210) | 🟢 Easy | | July 28, 2025 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | +| July 29, 2025 | [2411](https://leetcode.com/problems/smallest-subarrays-with-maximum-bitwise-or/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2411) | 🟡 Medium | # Join our discussion! From 04bd62cd4b58f935a5193a242af0f75580f3dde8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 30 Jul 2025 00:38:39 +0000 Subject: [PATCH 409/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3036c5c..26fa6de 100644 --- a/README.md +++ b/README.md @@ -405,6 +405,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 27, 2025 | [2210](https://leetcode.com/problems/count-hills-and-valleys-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2210) | 🟢 Easy | | July 28, 2025 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | | July 29, 2025 | [2411](https://leetcode.com/problems/smallest-subarrays-with-maximum-bitwise-or/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2411) | 🟡 Medium | +| July 30, 2025 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | # Join our discussion! From c16cde9151408771043ffe86f0f1c804e29a029c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 31 Jul 2025 00:38:48 +0000 Subject: [PATCH 410/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 26fa6de..064d07d 100644 --- a/README.md +++ b/README.md @@ -406,6 +406,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 28, 2025 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | | July 29, 2025 | [2411](https://leetcode.com/problems/smallest-subarrays-with-maximum-bitwise-or/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2411) | 🟡 Medium | | July 30, 2025 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | +| July 31, 2025 | [898](https://leetcode.com/problems/bitwise-ors-of-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/898) | 🟡 Medium | # Join our discussion! From 99127f8d5912395da1a926ffa01137466792004f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 1 Aug 2025 00:44:14 +0000 Subject: [PATCH 411/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 064d07d..9a3e5b5 100644 --- a/README.md +++ b/README.md @@ -407,6 +407,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 29, 2025 | [2411](https://leetcode.com/problems/smallest-subarrays-with-maximum-bitwise-or/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2411) | 🟡 Medium | | July 30, 2025 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | | July 31, 2025 | [898](https://leetcode.com/problems/bitwise-ors-of-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/898) | 🟡 Medium | +| August 1, 2025 | [118](https://leetcode.com/problems/pascals-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/118) | 🟢 Easy | # Join our discussion! From 09f3485282b7ebd848040a60a70e13e6ad743111 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 2 Aug 2025 00:36:59 +0000 Subject: [PATCH 412/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9a3e5b5..6d0e13e 100644 --- a/README.md +++ b/README.md @@ -408,6 +408,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 30, 2025 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | | July 31, 2025 | [898](https://leetcode.com/problems/bitwise-ors-of-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/898) | 🟡 Medium | | August 1, 2025 | [118](https://leetcode.com/problems/pascals-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/118) | 🟢 Easy | +| August 2, 2025 | [2561](https://leetcode.com/problems/rearranging-fruits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2561) | 🔴 Hard | # Join our discussion! From 158811440785b2a7186c63dceccbf9551ebcf874 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 3 Aug 2025 00:43:12 +0000 Subject: [PATCH 413/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6d0e13e..b035b02 100644 --- a/README.md +++ b/README.md @@ -409,6 +409,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | July 31, 2025 | [898](https://leetcode.com/problems/bitwise-ors-of-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/898) | 🟡 Medium | | August 1, 2025 | [118](https://leetcode.com/problems/pascals-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/118) | 🟢 Easy | | August 2, 2025 | [2561](https://leetcode.com/problems/rearranging-fruits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2561) | 🔴 Hard | +| August 3, 2025 | [2106](https://leetcode.com/problems/maximum-fruits-harvested-after-at-most-k-steps/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2106) | 🔴 Hard | # Join our discussion! From 762055ab3f769cd688c1441984f2359cdad9748a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 4 Aug 2025 00:42:38 +0000 Subject: [PATCH 414/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b035b02..3c0457f 100644 --- a/README.md +++ b/README.md @@ -410,6 +410,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 1, 2025 | [118](https://leetcode.com/problems/pascals-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/118) | 🟢 Easy | | August 2, 2025 | [2561](https://leetcode.com/problems/rearranging-fruits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2561) | 🔴 Hard | | August 3, 2025 | [2106](https://leetcode.com/problems/maximum-fruits-harvested-after-at-most-k-steps/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2106) | 🔴 Hard | +| August 4, 2025 | [904](https://leetcode.com/problems/fruit-into-baskets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/904) | 🟡 Medium | # Join our discussion! From 4ad5406391baf0a7f91789593ee57cf425e86507 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 5 Aug 2025 00:39:35 +0000 Subject: [PATCH 415/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3c0457f..6de27f4 100644 --- a/README.md +++ b/README.md @@ -411,6 +411,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 2, 2025 | [2561](https://leetcode.com/problems/rearranging-fruits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2561) | 🔴 Hard | | August 3, 2025 | [2106](https://leetcode.com/problems/maximum-fruits-harvested-after-at-most-k-steps/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2106) | 🔴 Hard | | August 4, 2025 | [904](https://leetcode.com/problems/fruit-into-baskets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/904) | 🟡 Medium | +| August 5, 2025 | [3477](https://leetcode.com/problems/fruits-into-baskets-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3477) | 🟢 Easy | # Join our discussion! From e2de6ba356e81fc907506a94576a12fba4e21acb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 6 Aug 2025 00:39:12 +0000 Subject: [PATCH 416/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6de27f4..18dc650 100644 --- a/README.md +++ b/README.md @@ -412,6 +412,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 3, 2025 | [2106](https://leetcode.com/problems/maximum-fruits-harvested-after-at-most-k-steps/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2106) | 🔴 Hard | | August 4, 2025 | [904](https://leetcode.com/problems/fruit-into-baskets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/904) | 🟡 Medium | | August 5, 2025 | [3477](https://leetcode.com/problems/fruits-into-baskets-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3477) | 🟢 Easy | +| August 6, 2025 | [3479](https://leetcode.com/problems/fruits-into-baskets-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3479) | 🟡 Medium | # Join our discussion! From 44039c695342f9fc05e71097a4791e21062a29b5 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 7 Aug 2025 00:39:33 +0000 Subject: [PATCH 417/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 18dc650..7f02fc0 100644 --- a/README.md +++ b/README.md @@ -413,6 +413,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 4, 2025 | [904](https://leetcode.com/problems/fruit-into-baskets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/904) | 🟡 Medium | | August 5, 2025 | [3477](https://leetcode.com/problems/fruits-into-baskets-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3477) | 🟢 Easy | | August 6, 2025 | [3479](https://leetcode.com/problems/fruits-into-baskets-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3479) | 🟡 Medium | +| August 7, 2025 | [3363](https://leetcode.com/problems/find-the-maximum-number-of-fruits-collected/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3363) | 🔴 Hard | # Join our discussion! From d45d6685329233fcb64c8faaf8832753844479d8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 8 Aug 2025 00:38:46 +0000 Subject: [PATCH 418/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7f02fc0..0a9fc24 100644 --- a/README.md +++ b/README.md @@ -414,6 +414,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 5, 2025 | [3477](https://leetcode.com/problems/fruits-into-baskets-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3477) | 🟢 Easy | | August 6, 2025 | [3479](https://leetcode.com/problems/fruits-into-baskets-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3479) | 🟡 Medium | | August 7, 2025 | [3363](https://leetcode.com/problems/find-the-maximum-number-of-fruits-collected/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3363) | 🔴 Hard | +| August 8, 2025 | [808](https://leetcode.com/problems/soup-servings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/808) | 🟡 Medium | # Join our discussion! From a95023db18f02d13c0449c0bb7a8414bdff00f22 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 9 Aug 2025 00:35:36 +0000 Subject: [PATCH 419/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0a9fc24..71a5070 100644 --- a/README.md +++ b/README.md @@ -415,6 +415,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 6, 2025 | [3479](https://leetcode.com/problems/fruits-into-baskets-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3479) | 🟡 Medium | | August 7, 2025 | [3363](https://leetcode.com/problems/find-the-maximum-number-of-fruits-collected/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3363) | 🔴 Hard | | August 8, 2025 | [808](https://leetcode.com/problems/soup-servings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/808) | 🟡 Medium | +| August 9, 2025 | [231](https://leetcode.com/problems/power-of-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/231) | 🟢 Easy | # Join our discussion! From a01c1c48e7f6dea765b215c8613f41d83270e047 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 10 Aug 2025 00:42:01 +0000 Subject: [PATCH 420/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 71a5070..9863206 100644 --- a/README.md +++ b/README.md @@ -416,6 +416,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 7, 2025 | [3363](https://leetcode.com/problems/find-the-maximum-number-of-fruits-collected/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3363) | 🔴 Hard | | August 8, 2025 | [808](https://leetcode.com/problems/soup-servings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/808) | 🟡 Medium | | August 9, 2025 | [231](https://leetcode.com/problems/power-of-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/231) | 🟢 Easy | +| August 10, 2025 | [869](https://leetcode.com/problems/reordered-power-of-2/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/869) | 🟡 Medium | # Join our discussion! From 15761dab1aa4626d6b2e8d2558edf8e3ae9e7ce5 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 11 Aug 2025 00:40:23 +0000 Subject: [PATCH 421/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9863206..179569a 100644 --- a/README.md +++ b/README.md @@ -417,6 +417,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 8, 2025 | [808](https://leetcode.com/problems/soup-servings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/808) | 🟡 Medium | | August 9, 2025 | [231](https://leetcode.com/problems/power-of-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/231) | 🟢 Easy | | August 10, 2025 | [869](https://leetcode.com/problems/reordered-power-of-2/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/869) | 🟡 Medium | +| August 11, 2025 | [2438](https://leetcode.com/problems/range-product-queries-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2438) | 🟡 Medium | # Join our discussion! From 6b23f719a47be27f7ee6061d6d6ef4c09ff731f1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 12 Aug 2025 00:36:09 +0000 Subject: [PATCH 422/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 179569a..a7dd5cb 100644 --- a/README.md +++ b/README.md @@ -418,6 +418,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 9, 2025 | [231](https://leetcode.com/problems/power-of-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/231) | 🟢 Easy | | August 10, 2025 | [869](https://leetcode.com/problems/reordered-power-of-2/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/869) | 🟡 Medium | | August 11, 2025 | [2438](https://leetcode.com/problems/range-product-queries-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2438) | 🟡 Medium | +| August 12, 2025 | [2787](https://leetcode.com/problems/ways-to-express-an-integer-as-sum-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2787) | 🟡 Medium | # Join our discussion! From 55b490c2663bd9e1d154d21d5bae34cf2eef8bd8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 13 Aug 2025 00:37:01 +0000 Subject: [PATCH 423/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a7dd5cb..acf927b 100644 --- a/README.md +++ b/README.md @@ -419,6 +419,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 10, 2025 | [869](https://leetcode.com/problems/reordered-power-of-2/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/869) | 🟡 Medium | | August 11, 2025 | [2438](https://leetcode.com/problems/range-product-queries-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2438) | 🟡 Medium | | August 12, 2025 | [2787](https://leetcode.com/problems/ways-to-express-an-integer-as-sum-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2787) | 🟡 Medium | +| August 13, 2025 | [326](https://leetcode.com/problems/power-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/326) | 🟢 Easy | # Join our discussion! From 36984b51faa50b8deee42522973940f9c2645851 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 14 Aug 2025 00:36:25 +0000 Subject: [PATCH 424/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index acf927b..3e4bb3b 100644 --- a/README.md +++ b/README.md @@ -420,6 +420,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 11, 2025 | [2438](https://leetcode.com/problems/range-product-queries-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2438) | 🟡 Medium | | August 12, 2025 | [2787](https://leetcode.com/problems/ways-to-express-an-integer-as-sum-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2787) | 🟡 Medium | | August 13, 2025 | [326](https://leetcode.com/problems/power-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/326) | 🟢 Easy | +| August 14, 2025 | [2264](https://leetcode.com/problems/largest-3-same-digit-number-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2264) | 🟢 Easy | # Join our discussion! From cf31113aea351f8c5eb7eb19f686840966e69a46 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 15 Aug 2025 00:37:18 +0000 Subject: [PATCH 425/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3e4bb3b..2f77187 100644 --- a/README.md +++ b/README.md @@ -421,6 +421,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 12, 2025 | [2787](https://leetcode.com/problems/ways-to-express-an-integer-as-sum-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2787) | 🟡 Medium | | August 13, 2025 | [326](https://leetcode.com/problems/power-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/326) | 🟢 Easy | | August 14, 2025 | [2264](https://leetcode.com/problems/largest-3-same-digit-number-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2264) | 🟢 Easy | +| August 15, 2025 | [342](https://leetcode.com/problems/power-of-four/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/342) | 🟢 Easy | # Join our discussion! From 9e9d4e8abdf54c6ef677aaaf7e72bc50bed0445c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 16 Aug 2025 00:34:36 +0000 Subject: [PATCH 426/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2f77187..532e4b4 100644 --- a/README.md +++ b/README.md @@ -422,6 +422,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 13, 2025 | [326](https://leetcode.com/problems/power-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/326) | 🟢 Easy | | August 14, 2025 | [2264](https://leetcode.com/problems/largest-3-same-digit-number-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2264) | 🟢 Easy | | August 15, 2025 | [342](https://leetcode.com/problems/power-of-four/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/342) | 🟢 Easy | +| August 16, 2025 | [1323](https://leetcode.com/problems/maximum-69-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1323) | 🟢 Easy | # Join our discussion! From d8fac8e6055f31b745692103b5e4649aec121ffb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 17 Aug 2025 00:39:53 +0000 Subject: [PATCH 427/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 532e4b4..42c0f6d 100644 --- a/README.md +++ b/README.md @@ -423,6 +423,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 14, 2025 | [2264](https://leetcode.com/problems/largest-3-same-digit-number-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2264) | 🟢 Easy | | August 15, 2025 | [342](https://leetcode.com/problems/power-of-four/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/342) | 🟢 Easy | | August 16, 2025 | [1323](https://leetcode.com/problems/maximum-69-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1323) | 🟢 Easy | +| August 17, 2025 | [837](https://leetcode.com/problems/new-21-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/837) | 🟡 Medium | # Join our discussion! From eea5fdb3b5c8d3207bcc21b6056281cda4757270 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 18 Aug 2025 00:39:40 +0000 Subject: [PATCH 428/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 42c0f6d..e9f1790 100644 --- a/README.md +++ b/README.md @@ -424,6 +424,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 15, 2025 | [342](https://leetcode.com/problems/power-of-four/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/342) | 🟢 Easy | | August 16, 2025 | [1323](https://leetcode.com/problems/maximum-69-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1323) | 🟢 Easy | | August 17, 2025 | [837](https://leetcode.com/problems/new-21-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/837) | 🟡 Medium | +| August 18, 2025 | [679](https://leetcode.com/problems/24-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/679) | 🔴 Hard | # Join our discussion! From ee925aeaaa28e9388485215f6bc3c74dc675342d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 19 Aug 2025 00:35:39 +0000 Subject: [PATCH 429/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e9f1790..0e80131 100644 --- a/README.md +++ b/README.md @@ -425,6 +425,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 16, 2025 | [1323](https://leetcode.com/problems/maximum-69-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1323) | 🟢 Easy | | August 17, 2025 | [837](https://leetcode.com/problems/new-21-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/837) | 🟡 Medium | | August 18, 2025 | [679](https://leetcode.com/problems/24-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/679) | 🔴 Hard | +| August 19, 2025 | [2348](https://leetcode.com/problems/number-of-zero-filled-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2348) | 🟡 Medium | # Join our discussion! From 25d5ab9ea3ee63ae935a3275d08333559c77789e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 20 Aug 2025 00:33:55 +0000 Subject: [PATCH 430/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0e80131..48cae66 100644 --- a/README.md +++ b/README.md @@ -426,6 +426,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 17, 2025 | [837](https://leetcode.com/problems/new-21-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/837) | 🟡 Medium | | August 18, 2025 | [679](https://leetcode.com/problems/24-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/679) | 🔴 Hard | | August 19, 2025 | [2348](https://leetcode.com/problems/number-of-zero-filled-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2348) | 🟡 Medium | +| August 20, 2025 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | # Join our discussion! From c75641553d72227a28ad3aaef3db5a46faaba33b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 21 Aug 2025 00:33:39 +0000 Subject: [PATCH 431/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 48cae66..5b317fb 100644 --- a/README.md +++ b/README.md @@ -427,6 +427,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 18, 2025 | [679](https://leetcode.com/problems/24-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/679) | 🔴 Hard | | August 19, 2025 | [2348](https://leetcode.com/problems/number-of-zero-filled-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2348) | 🟡 Medium | | August 20, 2025 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | +| August 21, 2025 | [1504](https://leetcode.com/problems/count-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1504) | 🟡 Medium | # Join our discussion! From c5dc8aa8aa6ecda59588132b7c094102e892e511 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 22 Aug 2025 00:34:14 +0000 Subject: [PATCH 432/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5b317fb..78c03ad 100644 --- a/README.md +++ b/README.md @@ -428,6 +428,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 19, 2025 | [2348](https://leetcode.com/problems/number-of-zero-filled-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2348) | 🟡 Medium | | August 20, 2025 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | | August 21, 2025 | [1504](https://leetcode.com/problems/count-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1504) | 🟡 Medium | +| August 22, 2025 | [3195](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3195) | 🟡 Medium | # Join our discussion! From 24d1c92770bc6e77ac882f9603e1a70517fb75cd Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 23 Aug 2025 00:32:55 +0000 Subject: [PATCH 433/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 78c03ad..913979f 100644 --- a/README.md +++ b/README.md @@ -429,6 +429,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 20, 2025 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | | August 21, 2025 | [1504](https://leetcode.com/problems/count-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1504) | 🟡 Medium | | August 22, 2025 | [3195](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3195) | 🟡 Medium | +| August 23, 2025 | [3197](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3197) | 🔴 Hard | # Join our discussion! From 94b48d9fadaaa293b4fdaf986cc8b7d6e5459af0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 24 Aug 2025 00:38:37 +0000 Subject: [PATCH 434/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 913979f..3d4aecf 100644 --- a/README.md +++ b/README.md @@ -430,6 +430,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 21, 2025 | [1504](https://leetcode.com/problems/count-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1504) | 🟡 Medium | | August 22, 2025 | [3195](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3195) | 🟡 Medium | | August 23, 2025 | [3197](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3197) | 🔴 Hard | +| August 24, 2025 | [1493](https://leetcode.com/problems/longest-subarray-of-1s-after-deleting-one-element/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1493) | 🟡 Medium | # Join our discussion! From 8ed1c31613f72f2fa1c6a7857e4358b51f123fd9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 25 Aug 2025 00:36:23 +0000 Subject: [PATCH 435/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3d4aecf..753184d 100644 --- a/README.md +++ b/README.md @@ -431,6 +431,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 22, 2025 | [3195](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3195) | 🟡 Medium | | August 23, 2025 | [3197](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3197) | 🔴 Hard | | August 24, 2025 | [1493](https://leetcode.com/problems/longest-subarray-of-1s-after-deleting-one-element/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1493) | 🟡 Medium | +| August 25, 2025 | [498](https://leetcode.com/problems/diagonal-traverse/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/498) | 🟡 Medium | # Join our discussion! From f027aabaf7ba35e49705340c2ba6edd548e3246e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 26 Aug 2025 00:34:42 +0000 Subject: [PATCH 436/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 753184d..50af80c 100644 --- a/README.md +++ b/README.md @@ -432,6 +432,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 23, 2025 | [3197](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3197) | 🔴 Hard | | August 24, 2025 | [1493](https://leetcode.com/problems/longest-subarray-of-1s-after-deleting-one-element/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1493) | 🟡 Medium | | August 25, 2025 | [498](https://leetcode.com/problems/diagonal-traverse/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/498) | 🟡 Medium | +| August 26, 2025 | [3000](https://leetcode.com/problems/maximum-area-of-longest-diagonal-rectangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3000) | 🟢 Easy | # Join our discussion! From 80f4dfc9ac0439f50c9566bf3ea66b00cc72bc56 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 27 Aug 2025 00:33:50 +0000 Subject: [PATCH 437/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 50af80c..a732ccc 100644 --- a/README.md +++ b/README.md @@ -433,6 +433,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 24, 2025 | [1493](https://leetcode.com/problems/longest-subarray-of-1s-after-deleting-one-element/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1493) | 🟡 Medium | | August 25, 2025 | [498](https://leetcode.com/problems/diagonal-traverse/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/498) | 🟡 Medium | | August 26, 2025 | [3000](https://leetcode.com/problems/maximum-area-of-longest-diagonal-rectangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3000) | 🟢 Easy | +| August 27, 2025 | [3459](https://leetcode.com/problems/length-of-longest-v-shaped-diagonal-segment/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3459) | 🔴 Hard | # Join our discussion! From d62b555af80ba1e0912f0bfd3fe30b10081185aa Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 28 Aug 2025 00:33:40 +0000 Subject: [PATCH 438/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a732ccc..3ef0571 100644 --- a/README.md +++ b/README.md @@ -434,6 +434,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 25, 2025 | [498](https://leetcode.com/problems/diagonal-traverse/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/498) | 🟡 Medium | | August 26, 2025 | [3000](https://leetcode.com/problems/maximum-area-of-longest-diagonal-rectangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3000) | 🟢 Easy | | August 27, 2025 | [3459](https://leetcode.com/problems/length-of-longest-v-shaped-diagonal-segment/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3459) | 🔴 Hard | +| August 28, 2025 | [3446](https://leetcode.com/problems/sort-matrix-by-diagonals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3446) | 🟡 Medium | # Join our discussion! From 0eb3b784a2a47eca731cf51f266e8d788f2c4fc8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 29 Aug 2025 00:34:02 +0000 Subject: [PATCH 439/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3ef0571..88fa658 100644 --- a/README.md +++ b/README.md @@ -435,6 +435,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 26, 2025 | [3000](https://leetcode.com/problems/maximum-area-of-longest-diagonal-rectangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3000) | 🟢 Easy | | August 27, 2025 | [3459](https://leetcode.com/problems/length-of-longest-v-shaped-diagonal-segment/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3459) | 🔴 Hard | | August 28, 2025 | [3446](https://leetcode.com/problems/sort-matrix-by-diagonals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3446) | 🟡 Medium | +| August 29, 2025 | [3021](https://leetcode.com/problems/alice-and-bob-playing-flower-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3021) | 🟡 Medium | # Join our discussion! From c0a51216e6672802beab73217a646ea6a01ade93 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 30 Aug 2025 00:31:46 +0000 Subject: [PATCH 440/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 88fa658..877afc3 100644 --- a/README.md +++ b/README.md @@ -436,6 +436,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 27, 2025 | [3459](https://leetcode.com/problems/length-of-longest-v-shaped-diagonal-segment/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3459) | 🔴 Hard | | August 28, 2025 | [3446](https://leetcode.com/problems/sort-matrix-by-diagonals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3446) | 🟡 Medium | | August 29, 2025 | [3021](https://leetcode.com/problems/alice-and-bob-playing-flower-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3021) | 🟡 Medium | +| August 30, 2025 | [36](https://leetcode.com/problems/valid-sudoku/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/36) | 🟡 Medium | # Join our discussion! From c90e70ec5ac31ba014e7b50b1babc76dd129c925 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 31 Aug 2025 00:37:07 +0000 Subject: [PATCH 441/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 877afc3..4ed4b47 100644 --- a/README.md +++ b/README.md @@ -437,6 +437,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 28, 2025 | [3446](https://leetcode.com/problems/sort-matrix-by-diagonals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3446) | 🟡 Medium | | August 29, 2025 | [3021](https://leetcode.com/problems/alice-and-bob-playing-flower-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3021) | 🟡 Medium | | August 30, 2025 | [36](https://leetcode.com/problems/valid-sudoku/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/36) | 🟡 Medium | +| August 31, 2025 | [37](https://leetcode.com/problems/sudoku-solver/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/37) | 🔴 Hard | # Join our discussion! From 18ef68ad14d77846b4865c40e9ec3c5b599615e6 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 1 Sep 2025 00:41:58 +0000 Subject: [PATCH 442/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4ed4b47..bb7c00b 100644 --- a/README.md +++ b/README.md @@ -438,6 +438,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 29, 2025 | [3021](https://leetcode.com/problems/alice-and-bob-playing-flower-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3021) | 🟡 Medium | | August 30, 2025 | [36](https://leetcode.com/problems/valid-sudoku/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/36) | 🟡 Medium | | August 31, 2025 | [37](https://leetcode.com/problems/sudoku-solver/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/37) | 🔴 Hard | +| September 1, 2025 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | # Join our discussion! From 617a11809d14cc89e822375b77bdae5745ba56ae Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 2 Sep 2025 00:33:49 +0000 Subject: [PATCH 443/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index bb7c00b..ec94cfe 100644 --- a/README.md +++ b/README.md @@ -439,6 +439,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 30, 2025 | [36](https://leetcode.com/problems/valid-sudoku/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/36) | 🟡 Medium | | August 31, 2025 | [37](https://leetcode.com/problems/sudoku-solver/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/37) | 🔴 Hard | | September 1, 2025 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | +| September 2, 2025 | [3025](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3025) | 🟡 Medium | # Join our discussion! From 4bc6c0a39e1c0bb7da86c458c5174cc20f24688f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 3 Sep 2025 00:32:01 +0000 Subject: [PATCH 444/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ec94cfe..ad1e662 100644 --- a/README.md +++ b/README.md @@ -440,6 +440,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | August 31, 2025 | [37](https://leetcode.com/problems/sudoku-solver/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/37) | 🔴 Hard | | September 1, 2025 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | | September 2, 2025 | [3025](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3025) | 🟡 Medium | +| September 3, 2025 | [3027](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3027) | 🔴 Hard | # Join our discussion! From 2ab6ce49a98fe841462a150c839f4f378513df3b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 4 Sep 2025 00:32:25 +0000 Subject: [PATCH 445/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ad1e662..64f0ccb 100644 --- a/README.md +++ b/README.md @@ -441,6 +441,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 1, 2025 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | | September 2, 2025 | [3025](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3025) | 🟡 Medium | | September 3, 2025 | [3027](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3027) | 🔴 Hard | +| September 4, 2025 | [3516](https://leetcode.com/problems/find-closest-person/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3516) | 🟢 Easy | # Join our discussion! From c38b6d490468068b3142db26d2b24d612e5be341 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 5 Sep 2025 00:33:10 +0000 Subject: [PATCH 446/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 64f0ccb..509eb00 100644 --- a/README.md +++ b/README.md @@ -442,6 +442,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 2, 2025 | [3025](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3025) | 🟡 Medium | | September 3, 2025 | [3027](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3027) | 🔴 Hard | | September 4, 2025 | [3516](https://leetcode.com/problems/find-closest-person/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3516) | 🟢 Easy | +| September 5, 2025 | [2749](https://leetcode.com/problems/minimum-operations-to-make-the-integer-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2749) | 🟡 Medium | # Join our discussion! From c6c588a8005e6e00629e2d842a8071fb41c91a71 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 6 Sep 2025 00:31:36 +0000 Subject: [PATCH 447/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 509eb00..2caed65 100644 --- a/README.md +++ b/README.md @@ -443,6 +443,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 3, 2025 | [3027](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3027) | 🔴 Hard | | September 4, 2025 | [3516](https://leetcode.com/problems/find-closest-person/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3516) | 🟢 Easy | | September 5, 2025 | [2749](https://leetcode.com/problems/minimum-operations-to-make-the-integer-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2749) | 🟡 Medium | +| September 6, 2025 | [3495](https://leetcode.com/problems/minimum-operations-to-make-array-elements-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3495) | 🔴 Hard | # Join our discussion! From 17f702c2b5bce29ac956e9c4031c927c766400b7 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 7 Sep 2025 00:36:53 +0000 Subject: [PATCH 448/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2caed65..ba2f48d 100644 --- a/README.md +++ b/README.md @@ -444,6 +444,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 4, 2025 | [3516](https://leetcode.com/problems/find-closest-person/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3516) | 🟢 Easy | | September 5, 2025 | [2749](https://leetcode.com/problems/minimum-operations-to-make-the-integer-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2749) | 🟡 Medium | | September 6, 2025 | [3495](https://leetcode.com/problems/minimum-operations-to-make-array-elements-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3495) | 🔴 Hard | +| September 7, 2025 | [1304](https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1304) | 🟢 Easy | # Join our discussion! From d8c31818291c5b3bc912901da580828e844e35cf Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 8 Sep 2025 00:35:20 +0000 Subject: [PATCH 449/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ba2f48d..d8deb1b 100644 --- a/README.md +++ b/README.md @@ -445,6 +445,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 5, 2025 | [2749](https://leetcode.com/problems/minimum-operations-to-make-the-integer-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2749) | 🟡 Medium | | September 6, 2025 | [3495](https://leetcode.com/problems/minimum-operations-to-make-array-elements-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3495) | 🔴 Hard | | September 7, 2025 | [1304](https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1304) | 🟢 Easy | +| September 8, 2025 | [1317](https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1317) | 🟢 Easy | # Join our discussion! From 37eae54e38947b167d8014d16c066334c56bc74a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 9 Sep 2025 00:33:32 +0000 Subject: [PATCH 450/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d8deb1b..0679aab 100644 --- a/README.md +++ b/README.md @@ -446,6 +446,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 6, 2025 | [3495](https://leetcode.com/problems/minimum-operations-to-make-array-elements-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3495) | 🔴 Hard | | September 7, 2025 | [1304](https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1304) | 🟢 Easy | | September 8, 2025 | [1317](https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1317) | 🟢 Easy | +| September 9, 2025 | [2327](https://leetcode.com/problems/number-of-people-aware-of-a-secret/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2327) | 🟡 Medium | # Join our discussion! From 106cc5c60d49b3108cd00ebba9739ac1f0102de2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 10 Sep 2025 00:32:38 +0000 Subject: [PATCH 451/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0679aab..e8d2470 100644 --- a/README.md +++ b/README.md @@ -447,6 +447,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 7, 2025 | [1304](https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1304) | 🟢 Easy | | September 8, 2025 | [1317](https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1317) | 🟢 Easy | | September 9, 2025 | [2327](https://leetcode.com/problems/number-of-people-aware-of-a-secret/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2327) | 🟡 Medium | +| September 10, 2025 | [1733](https://leetcode.com/problems/minimum-number-of-people-to-teach/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1733) | 🟡 Medium | # Join our discussion! From 402bbbcf2355a4ba7a0ec24358ccc39cae90402e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 11 Sep 2025 00:33:06 +0000 Subject: [PATCH 452/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e8d2470..27b7170 100644 --- a/README.md +++ b/README.md @@ -448,6 +448,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 8, 2025 | [1317](https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1317) | 🟢 Easy | | September 9, 2025 | [2327](https://leetcode.com/problems/number-of-people-aware-of-a-secret/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2327) | 🟡 Medium | | September 10, 2025 | [1733](https://leetcode.com/problems/minimum-number-of-people-to-teach/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1733) | 🟡 Medium | +| September 11, 2025 | [2785](https://leetcode.com/problems/sort-vowels-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2785) | 🟡 Medium | # Join our discussion! From d774be0ad82cb3aa901a267e229c3ca80f7fdbb4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 12 Sep 2025 00:32:31 +0000 Subject: [PATCH 453/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 27b7170..01e74d7 100644 --- a/README.md +++ b/README.md @@ -449,6 +449,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 9, 2025 | [2327](https://leetcode.com/problems/number-of-people-aware-of-a-secret/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2327) | 🟡 Medium | | September 10, 2025 | [1733](https://leetcode.com/problems/minimum-number-of-people-to-teach/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1733) | 🟡 Medium | | September 11, 2025 | [2785](https://leetcode.com/problems/sort-vowels-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2785) | 🟡 Medium | +| September 12, 2025 | [3227](https://leetcode.com/problems/vowels-game-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3227) | 🟡 Medium | # Join our discussion! From aae3eec00471a8c915812f60a0931ea94076c13d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 13 Sep 2025 00:30:12 +0000 Subject: [PATCH 454/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 01e74d7..b9d478d 100644 --- a/README.md +++ b/README.md @@ -450,6 +450,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 10, 2025 | [1733](https://leetcode.com/problems/minimum-number-of-people-to-teach/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1733) | 🟡 Medium | | September 11, 2025 | [2785](https://leetcode.com/problems/sort-vowels-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2785) | 🟡 Medium | | September 12, 2025 | [3227](https://leetcode.com/problems/vowels-game-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3227) | 🟡 Medium | +| September 13, 2025 | [3541](https://leetcode.com/problems/find-most-frequent-vowel-and-consonant/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3541) | 🟢 Easy | # Join our discussion! From 8e50da6b19a1948a69c9f167ab6b6f1158280880 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 14 Sep 2025 00:35:36 +0000 Subject: [PATCH 455/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b9d478d..ff22209 100644 --- a/README.md +++ b/README.md @@ -451,6 +451,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 11, 2025 | [2785](https://leetcode.com/problems/sort-vowels-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2785) | 🟡 Medium | | September 12, 2025 | [3227](https://leetcode.com/problems/vowels-game-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3227) | 🟡 Medium | | September 13, 2025 | [3541](https://leetcode.com/problems/find-most-frequent-vowel-and-consonant/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3541) | 🟢 Easy | +| September 14, 2025 | [966](https://leetcode.com/problems/vowel-spellchecker/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/966) | 🟡 Medium | # Join our discussion! From 353e8dd5bd9d032b0c8a1c53286db5d8b319664f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 15 Sep 2025 00:36:02 +0000 Subject: [PATCH 456/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ff22209..247c7f8 100644 --- a/README.md +++ b/README.md @@ -452,6 +452,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 12, 2025 | [3227](https://leetcode.com/problems/vowels-game-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3227) | 🟡 Medium | | September 13, 2025 | [3541](https://leetcode.com/problems/find-most-frequent-vowel-and-consonant/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3541) | 🟢 Easy | | September 14, 2025 | [966](https://leetcode.com/problems/vowel-spellchecker/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/966) | 🟡 Medium | +| September 15, 2025 | [1935](https://leetcode.com/problems/maximum-number-of-words-you-can-type/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1935) | 🟢 Easy | # Join our discussion! From 0368f89e1a3c862c3092a7092951f583786d3b42 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 16 Sep 2025 00:32:08 +0000 Subject: [PATCH 457/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 247c7f8..e0fe3e2 100644 --- a/README.md +++ b/README.md @@ -453,6 +453,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 13, 2025 | [3541](https://leetcode.com/problems/find-most-frequent-vowel-and-consonant/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3541) | 🟢 Easy | | September 14, 2025 | [966](https://leetcode.com/problems/vowel-spellchecker/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/966) | 🟡 Medium | | September 15, 2025 | [1935](https://leetcode.com/problems/maximum-number-of-words-you-can-type/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1935) | 🟢 Easy | +| September 16, 2025 | [2197](https://leetcode.com/problems/replace-non-coprime-numbers-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2197) | 🔴 Hard | # Join our discussion! From b083c49f4c8909ad8064832be72d4d96fb09506a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 17 Sep 2025 00:32:54 +0000 Subject: [PATCH 458/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e0fe3e2..2a01749 100644 --- a/README.md +++ b/README.md @@ -454,6 +454,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 14, 2025 | [966](https://leetcode.com/problems/vowel-spellchecker/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/966) | 🟡 Medium | | September 15, 2025 | [1935](https://leetcode.com/problems/maximum-number-of-words-you-can-type/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1935) | 🟢 Easy | | September 16, 2025 | [2197](https://leetcode.com/problems/replace-non-coprime-numbers-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2197) | 🔴 Hard | +| September 17, 2025 | [2353](https://leetcode.com/problems/design-a-food-rating-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2353) | 🟡 Medium | # Join our discussion! From 76948c2873b56073d81d4653c7997ba3999d7fbe Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 18 Sep 2025 00:32:24 +0000 Subject: [PATCH 459/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2a01749..b7082e7 100644 --- a/README.md +++ b/README.md @@ -455,6 +455,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 15, 2025 | [1935](https://leetcode.com/problems/maximum-number-of-words-you-can-type/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1935) | 🟢 Easy | | September 16, 2025 | [2197](https://leetcode.com/problems/replace-non-coprime-numbers-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2197) | 🔴 Hard | | September 17, 2025 | [2353](https://leetcode.com/problems/design-a-food-rating-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2353) | 🟡 Medium | +| September 18, 2025 | [3408](https://leetcode.com/problems/design-task-manager/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3408) | 🟡 Medium | # Join our discussion! From ae870534cbe63158d9e43188182191774a61a885 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 19 Sep 2025 00:33:16 +0000 Subject: [PATCH 460/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b7082e7..6effc5f 100644 --- a/README.md +++ b/README.md @@ -456,6 +456,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 16, 2025 | [2197](https://leetcode.com/problems/replace-non-coprime-numbers-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2197) | 🔴 Hard | | September 17, 2025 | [2353](https://leetcode.com/problems/design-a-food-rating-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2353) | 🟡 Medium | | September 18, 2025 | [3408](https://leetcode.com/problems/design-task-manager/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3408) | 🟡 Medium | +| September 19, 2025 | [3484](https://leetcode.com/problems/design-spreadsheet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3484) | 🟡 Medium | # Join our discussion! From 34fb786d3b80dc8717bf1f599728e6c559a3087f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 20 Sep 2025 00:31:29 +0000 Subject: [PATCH 461/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6effc5f..a1848b2 100644 --- a/README.md +++ b/README.md @@ -457,6 +457,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 17, 2025 | [2353](https://leetcode.com/problems/design-a-food-rating-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2353) | 🟡 Medium | | September 18, 2025 | [3408](https://leetcode.com/problems/design-task-manager/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3408) | 🟡 Medium | | September 19, 2025 | [3484](https://leetcode.com/problems/design-spreadsheet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3484) | 🟡 Medium | +| September 20, 2025 | [3508](https://leetcode.com/problems/implement-router/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3508) | 🟡 Medium | # Join our discussion! From 8e00f2e156a28285da6567ebb06ba7161de12139 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 21 Sep 2025 00:36:47 +0000 Subject: [PATCH 462/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a1848b2..803abf8 100644 --- a/README.md +++ b/README.md @@ -458,6 +458,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 18, 2025 | [3408](https://leetcode.com/problems/design-task-manager/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3408) | 🟡 Medium | | September 19, 2025 | [3484](https://leetcode.com/problems/design-spreadsheet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3484) | 🟡 Medium | | September 20, 2025 | [3508](https://leetcode.com/problems/implement-router/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3508) | 🟡 Medium | +| September 21, 2025 | [1912](https://leetcode.com/problems/design-movie-rental-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1912) | 🔴 Hard | # Join our discussion! From 85963a401d795ff573e04eda84e92d2ce57b11fb Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 22 Sep 2025 00:36:34 +0000 Subject: [PATCH 463/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 803abf8..955bfe7 100644 --- a/README.md +++ b/README.md @@ -459,6 +459,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 19, 2025 | [3484](https://leetcode.com/problems/design-spreadsheet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3484) | 🟡 Medium | | September 20, 2025 | [3508](https://leetcode.com/problems/implement-router/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3508) | 🟡 Medium | | September 21, 2025 | [1912](https://leetcode.com/problems/design-movie-rental-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1912) | 🔴 Hard | +| September 22, 2025 | [3005](https://leetcode.com/problems/count-elements-with-maximum-frequency/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3005) | 🟢 Easy | # Join our discussion! From ce736b6a175aafc8e2a460516427c357ddd4d7c2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 23 Sep 2025 00:32:47 +0000 Subject: [PATCH 464/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 955bfe7..fedc162 100644 --- a/README.md +++ b/README.md @@ -460,6 +460,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 20, 2025 | [3508](https://leetcode.com/problems/implement-router/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3508) | 🟡 Medium | | September 21, 2025 | [1912](https://leetcode.com/problems/design-movie-rental-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1912) | 🔴 Hard | | September 22, 2025 | [3005](https://leetcode.com/problems/count-elements-with-maximum-frequency/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3005) | 🟢 Easy | +| September 23, 2025 | [165](https://leetcode.com/problems/compare-version-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/165) | 🟡 Medium | # Join our discussion! From 38cfe6ea8b0511e4d769275785cf84f8d679a589 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 24 Sep 2025 00:33:37 +0000 Subject: [PATCH 465/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index fedc162..596037e 100644 --- a/README.md +++ b/README.md @@ -461,6 +461,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 21, 2025 | [1912](https://leetcode.com/problems/design-movie-rental-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1912) | 🔴 Hard | | September 22, 2025 | [3005](https://leetcode.com/problems/count-elements-with-maximum-frequency/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3005) | 🟢 Easy | | September 23, 2025 | [165](https://leetcode.com/problems/compare-version-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/165) | 🟡 Medium | +| September 24, 2025 | [166](https://leetcode.com/problems/fraction-to-recurring-decimal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/166) | 🟡 Medium | # Join our discussion! From 77bc44dc63272f42f69fc60c1b74a070d96b8f80 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 25 Sep 2025 00:33:32 +0000 Subject: [PATCH 466/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 596037e..5a77009 100644 --- a/README.md +++ b/README.md @@ -462,6 +462,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 22, 2025 | [3005](https://leetcode.com/problems/count-elements-with-maximum-frequency/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3005) | 🟢 Easy | | September 23, 2025 | [165](https://leetcode.com/problems/compare-version-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/165) | 🟡 Medium | | September 24, 2025 | [166](https://leetcode.com/problems/fraction-to-recurring-decimal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/166) | 🟡 Medium | +| September 25, 2025 | [120](https://leetcode.com/problems/triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/120) | 🟡 Medium | # Join our discussion! From 814bdc19395016895f38587b1c68afd0bc25e765 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 26 Sep 2025 00:32:34 +0000 Subject: [PATCH 467/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5a77009..a035e18 100644 --- a/README.md +++ b/README.md @@ -463,6 +463,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 23, 2025 | [165](https://leetcode.com/problems/compare-version-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/165) | 🟡 Medium | | September 24, 2025 | [166](https://leetcode.com/problems/fraction-to-recurring-decimal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/166) | 🟡 Medium | | September 25, 2025 | [120](https://leetcode.com/problems/triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/120) | 🟡 Medium | +| September 26, 2025 | [611](https://leetcode.com/problems/valid-triangle-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/611) | 🟡 Medium | # Join our discussion! From 918ed497ad59622975463d5917377dfb3673afe0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 27 Sep 2025 00:32:12 +0000 Subject: [PATCH 468/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a035e18..7f0f2f2 100644 --- a/README.md +++ b/README.md @@ -464,6 +464,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 24, 2025 | [166](https://leetcode.com/problems/fraction-to-recurring-decimal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/166) | 🟡 Medium | | September 25, 2025 | [120](https://leetcode.com/problems/triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/120) | 🟡 Medium | | September 26, 2025 | [611](https://leetcode.com/problems/valid-triangle-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/611) | 🟡 Medium | +| September 27, 2025 | [812](https://leetcode.com/problems/largest-triangle-area/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/812) | 🟢 Easy | # Join our discussion! From a88f9db5b25d7e5180c52ac45c068d04b2a47067 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 28 Sep 2025 00:37:39 +0000 Subject: [PATCH 469/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7f0f2f2..09267d0 100644 --- a/README.md +++ b/README.md @@ -465,6 +465,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 25, 2025 | [120](https://leetcode.com/problems/triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/120) | 🟡 Medium | | September 26, 2025 | [611](https://leetcode.com/problems/valid-triangle-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/611) | 🟡 Medium | | September 27, 2025 | [812](https://leetcode.com/problems/largest-triangle-area/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/812) | 🟢 Easy | +| September 28, 2025 | [976](https://leetcode.com/problems/largest-perimeter-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/976) | 🟢 Easy | # Join our discussion! From 48397e45653122469d00ec56ee354dde963c7dfc Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 29 Sep 2025 00:34:51 +0000 Subject: [PATCH 470/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 09267d0..ee95281 100644 --- a/README.md +++ b/README.md @@ -466,6 +466,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 26, 2025 | [611](https://leetcode.com/problems/valid-triangle-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/611) | 🟡 Medium | | September 27, 2025 | [812](https://leetcode.com/problems/largest-triangle-area/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/812) | 🟢 Easy | | September 28, 2025 | [976](https://leetcode.com/problems/largest-perimeter-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/976) | 🟢 Easy | +| September 29, 2025 | [1039](https://leetcode.com/problems/minimum-score-triangulation-of-polygon/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1039) | 🟡 Medium | # Join our discussion! From a59857d27ef7341f0a1b51068087c12b1c588630 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 30 Sep 2025 00:33:28 +0000 Subject: [PATCH 471/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ee95281..087c39c 100644 --- a/README.md +++ b/README.md @@ -467,6 +467,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 27, 2025 | [812](https://leetcode.com/problems/largest-triangle-area/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/812) | 🟢 Easy | | September 28, 2025 | [976](https://leetcode.com/problems/largest-perimeter-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/976) | 🟢 Easy | | September 29, 2025 | [1039](https://leetcode.com/problems/minimum-score-triangulation-of-polygon/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1039) | 🟡 Medium | +| September 30, 2025 | [2221](https://leetcode.com/problems/find-triangular-sum-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2221) | 🟡 Medium | # Join our discussion! From 1f0a77262c526a2f4a65b5b13d86bff9d3e7d8a1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 1 Oct 2025 00:38:10 +0000 Subject: [PATCH 472/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 087c39c..54578ad 100644 --- a/README.md +++ b/README.md @@ -468,6 +468,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 28, 2025 | [976](https://leetcode.com/problems/largest-perimeter-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/976) | 🟢 Easy | | September 29, 2025 | [1039](https://leetcode.com/problems/minimum-score-triangulation-of-polygon/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1039) | 🟡 Medium | | September 30, 2025 | [2221](https://leetcode.com/problems/find-triangular-sum-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2221) | 🟡 Medium | +| October 1, 2025 | [1518](https://leetcode.com/problems/water-bottles/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1518) | 🟢 Easy | # Join our discussion! From 2c01b2c15b841fad73f0777cf7f640c8fd87e5d8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 2 Oct 2025 00:32:16 +0000 Subject: [PATCH 473/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 54578ad..216c05f 100644 --- a/README.md +++ b/README.md @@ -469,6 +469,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 29, 2025 | [1039](https://leetcode.com/problems/minimum-score-triangulation-of-polygon/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1039) | 🟡 Medium | | September 30, 2025 | [2221](https://leetcode.com/problems/find-triangular-sum-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2221) | 🟡 Medium | | October 1, 2025 | [1518](https://leetcode.com/problems/water-bottles/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1518) | 🟢 Easy | +| October 2, 2025 | [3100](https://leetcode.com/problems/water-bottles-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3100) | 🟡 Medium | # Join our discussion! From a0f57d1cc8d83e8ea58555a2a375922dbc45705f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 3 Oct 2025 00:32:07 +0000 Subject: [PATCH 474/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 216c05f..1dfe4b5 100644 --- a/README.md +++ b/README.md @@ -470,6 +470,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | September 30, 2025 | [2221](https://leetcode.com/problems/find-triangular-sum-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2221) | 🟡 Medium | | October 1, 2025 | [1518](https://leetcode.com/problems/water-bottles/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1518) | 🟢 Easy | | October 2, 2025 | [3100](https://leetcode.com/problems/water-bottles-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3100) | 🟡 Medium | +| October 3, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | # Join our discussion! From 21c729cdead1917683def560eecbba05bdd7f259 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 4 Oct 2025 00:31:12 +0000 Subject: [PATCH 475/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 1dfe4b5..72b853e 100644 --- a/README.md +++ b/README.md @@ -471,6 +471,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 1, 2025 | [1518](https://leetcode.com/problems/water-bottles/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1518) | 🟢 Easy | | October 2, 2025 | [3100](https://leetcode.com/problems/water-bottles-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3100) | 🟡 Medium | | October 3, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | +| October 4, 2025 | [11](https://leetcode.com/problems/container-with-most-water/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/11) | 🟡 Medium | # Join our discussion! From d3eff685023eb8935894505c175301163a1dd589 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 5 Oct 2025 00:36:42 +0000 Subject: [PATCH 476/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 72b853e..b95df49 100644 --- a/README.md +++ b/README.md @@ -472,6 +472,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 2, 2025 | [3100](https://leetcode.com/problems/water-bottles-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3100) | 🟡 Medium | | October 3, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | | October 4, 2025 | [11](https://leetcode.com/problems/container-with-most-water/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/11) | 🟡 Medium | +| October 5, 2025 | [417](https://leetcode.com/problems/pacific-atlantic-water-flow/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/417) | 🟡 Medium | # Join our discussion! From 84a852d8f5abfacca71af7d87e7441b0c54bbf66 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 6 Oct 2025 00:33:59 +0000 Subject: [PATCH 477/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b95df49..6ad6d3e 100644 --- a/README.md +++ b/README.md @@ -473,6 +473,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 3, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | | October 4, 2025 | [11](https://leetcode.com/problems/container-with-most-water/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/11) | 🟡 Medium | | October 5, 2025 | [417](https://leetcode.com/problems/pacific-atlantic-water-flow/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/417) | 🟡 Medium | +| October 6, 2025 | [778](https://leetcode.com/problems/swim-in-rising-water/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/778) | 🔴 Hard | # Join our discussion! From db24fb62be32ba63b96e1af4bae0d90606384ede Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 7 Oct 2025 00:33:14 +0000 Subject: [PATCH 478/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6ad6d3e..aeece0a 100644 --- a/README.md +++ b/README.md @@ -474,6 +474,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 4, 2025 | [11](https://leetcode.com/problems/container-with-most-water/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/11) | 🟡 Medium | | October 5, 2025 | [417](https://leetcode.com/problems/pacific-atlantic-water-flow/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/417) | 🟡 Medium | | October 6, 2025 | [778](https://leetcode.com/problems/swim-in-rising-water/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/778) | 🔴 Hard | +| October 7, 2025 | [1488](https://leetcode.com/problems/avoid-flood-in-the-city/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1488) | 🟡 Medium | # Join our discussion! From f5fd2b7e917909e237010b1f29c57fce661eb813 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 8 Oct 2025 00:32:55 +0000 Subject: [PATCH 479/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index aeece0a..0302f6d 100644 --- a/README.md +++ b/README.md @@ -475,6 +475,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 5, 2025 | [417](https://leetcode.com/problems/pacific-atlantic-water-flow/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/417) | 🟡 Medium | | October 6, 2025 | [778](https://leetcode.com/problems/swim-in-rising-water/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/778) | 🔴 Hard | | October 7, 2025 | [1488](https://leetcode.com/problems/avoid-flood-in-the-city/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1488) | 🟡 Medium | +| October 8, 2025 | [2300](https://leetcode.com/problems/successful-pairs-of-spells-and-potions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2300) | 🟡 Medium | # Join our discussion! From 49f15ea8754a8aab5955ed3bb92c30a5e66f23ba Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 9 Oct 2025 00:33:09 +0000 Subject: [PATCH 480/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0302f6d..5fbaf7f 100644 --- a/README.md +++ b/README.md @@ -476,6 +476,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 6, 2025 | [778](https://leetcode.com/problems/swim-in-rising-water/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/778) | 🔴 Hard | | October 7, 2025 | [1488](https://leetcode.com/problems/avoid-flood-in-the-city/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1488) | 🟡 Medium | | October 8, 2025 | [2300](https://leetcode.com/problems/successful-pairs-of-spells-and-potions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2300) | 🟡 Medium | +| October 9, 2025 | [3494](https://leetcode.com/problems/find-the-minimum-amount-of-time-to-brew-potions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3494) | 🟡 Medium | # Join our discussion! From bdddba34e8861800fec8d373f4c096b653246c09 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 10 Oct 2025 00:33:33 +0000 Subject: [PATCH 481/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 5fbaf7f..452bd0d 100644 --- a/README.md +++ b/README.md @@ -477,6 +477,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 7, 2025 | [1488](https://leetcode.com/problems/avoid-flood-in-the-city/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1488) | 🟡 Medium | | October 8, 2025 | [2300](https://leetcode.com/problems/successful-pairs-of-spells-and-potions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2300) | 🟡 Medium | | October 9, 2025 | [3494](https://leetcode.com/problems/find-the-minimum-amount-of-time-to-brew-potions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3494) | 🟡 Medium | +| October 10, 2025 | [3147](https://leetcode.com/problems/taking-maximum-energy-from-the-mystic-dungeon/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3147) | 🟡 Medium | # Join our discussion! From 327522c3fa6d1c9cea29dc06e5a54886b2992c75 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 11 Oct 2025 00:31:23 +0000 Subject: [PATCH 482/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 452bd0d..0712097 100644 --- a/README.md +++ b/README.md @@ -478,6 +478,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 8, 2025 | [2300](https://leetcode.com/problems/successful-pairs-of-spells-and-potions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2300) | 🟡 Medium | | October 9, 2025 | [3494](https://leetcode.com/problems/find-the-minimum-amount-of-time-to-brew-potions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3494) | 🟡 Medium | | October 10, 2025 | [3147](https://leetcode.com/problems/taking-maximum-energy-from-the-mystic-dungeon/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3147) | 🟡 Medium | +| October 11, 2025 | [3186](https://leetcode.com/problems/maximum-total-damage-with-spell-casting/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3186) | 🟡 Medium | # Join our discussion! From 8621d8705c4acaf83a1523151f1c9d388eceaf90 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 12 Oct 2025 00:35:11 +0000 Subject: [PATCH 483/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0712097..c525829 100644 --- a/README.md +++ b/README.md @@ -479,6 +479,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 9, 2025 | [3494](https://leetcode.com/problems/find-the-minimum-amount-of-time-to-brew-potions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3494) | 🟡 Medium | | October 10, 2025 | [3147](https://leetcode.com/problems/taking-maximum-energy-from-the-mystic-dungeon/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3147) | 🟡 Medium | | October 11, 2025 | [3186](https://leetcode.com/problems/maximum-total-damage-with-spell-casting/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3186) | 🟡 Medium | +| October 12, 2025 | [3539](https://leetcode.com/problems/find-sum-of-array-product-of-magical-sequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3539) | 🔴 Hard | # Join our discussion! From 4af69df04ac8b4d2de9df20ab921394f4f459c0c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 13 Oct 2025 00:36:23 +0000 Subject: [PATCH 484/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c525829..4461015 100644 --- a/README.md +++ b/README.md @@ -480,6 +480,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 10, 2025 | [3147](https://leetcode.com/problems/taking-maximum-energy-from-the-mystic-dungeon/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3147) | 🟡 Medium | | October 11, 2025 | [3186](https://leetcode.com/problems/maximum-total-damage-with-spell-casting/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3186) | 🟡 Medium | | October 12, 2025 | [3539](https://leetcode.com/problems/find-sum-of-array-product-of-magical-sequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3539) | 🔴 Hard | +| October 13, 2025 | [2273](https://leetcode.com/problems/find-resultant-array-after-removing-anagrams/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2273) | 🟢 Easy | # Join our discussion! From a10f172ba6d6377a8ed2b677a7e183422a1ebc7a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 14 Oct 2025 00:33:14 +0000 Subject: [PATCH 485/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 4461015..d77eb68 100644 --- a/README.md +++ b/README.md @@ -481,6 +481,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 11, 2025 | [3186](https://leetcode.com/problems/maximum-total-damage-with-spell-casting/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3186) | 🟡 Medium | | October 12, 2025 | [3539](https://leetcode.com/problems/find-sum-of-array-product-of-magical-sequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3539) | 🔴 Hard | | October 13, 2025 | [2273](https://leetcode.com/problems/find-resultant-array-after-removing-anagrams/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2273) | 🟢 Easy | +| October 14, 2025 | [3349](https://leetcode.com/problems/adjacent-increasing-subarrays-detection-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3349) | 🟢 Easy | # Join our discussion! From c0845ffef455e376923febdebe05cf3fa021adcd Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 15 Oct 2025 00:34:37 +0000 Subject: [PATCH 486/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d77eb68..e8e6812 100644 --- a/README.md +++ b/README.md @@ -482,6 +482,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 12, 2025 | [3539](https://leetcode.com/problems/find-sum-of-array-product-of-magical-sequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3539) | 🔴 Hard | | October 13, 2025 | [2273](https://leetcode.com/problems/find-resultant-array-after-removing-anagrams/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2273) | 🟢 Easy | | October 14, 2025 | [3349](https://leetcode.com/problems/adjacent-increasing-subarrays-detection-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3349) | 🟢 Easy | +| October 15, 2025 | [3350](https://leetcode.com/problems/adjacent-increasing-subarrays-detection-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3350) | 🟡 Medium | # Join our discussion! From 69a225709145f21093eb908d01c80ed099768c80 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 16 Oct 2025 00:34:29 +0000 Subject: [PATCH 487/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e8e6812..3ae9aed 100644 --- a/README.md +++ b/README.md @@ -483,6 +483,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 13, 2025 | [2273](https://leetcode.com/problems/find-resultant-array-after-removing-anagrams/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2273) | 🟢 Easy | | October 14, 2025 | [3349](https://leetcode.com/problems/adjacent-increasing-subarrays-detection-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3349) | 🟢 Easy | | October 15, 2025 | [3350](https://leetcode.com/problems/adjacent-increasing-subarrays-detection-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3350) | 🟡 Medium | +| October 16, 2025 | [2598](https://leetcode.com/problems/smallest-missing-non-negative-integer-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2598) | 🟡 Medium | # Join our discussion! From 5dce9d92d884d60875cf2218337bd38103cd71e1 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 17 Oct 2025 00:34:11 +0000 Subject: [PATCH 488/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3ae9aed..fe69699 100644 --- a/README.md +++ b/README.md @@ -484,6 +484,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 14, 2025 | [3349](https://leetcode.com/problems/adjacent-increasing-subarrays-detection-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3349) | 🟢 Easy | | October 15, 2025 | [3350](https://leetcode.com/problems/adjacent-increasing-subarrays-detection-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3350) | 🟡 Medium | | October 16, 2025 | [2598](https://leetcode.com/problems/smallest-missing-non-negative-integer-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2598) | 🟡 Medium | +| October 17, 2025 | [3003](https://leetcode.com/problems/maximize-the-number-of-partitions-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3003) | 🔴 Hard | # Join our discussion! From 29918ab35d6bae1bb1a70d8f204222cd9496f997 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 18 Oct 2025 00:31:30 +0000 Subject: [PATCH 489/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index fe69699..68113f0 100644 --- a/README.md +++ b/README.md @@ -485,6 +485,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 15, 2025 | [3350](https://leetcode.com/problems/adjacent-increasing-subarrays-detection-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3350) | 🟡 Medium | | October 16, 2025 | [2598](https://leetcode.com/problems/smallest-missing-non-negative-integer-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2598) | 🟡 Medium | | October 17, 2025 | [3003](https://leetcode.com/problems/maximize-the-number-of-partitions-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3003) | 🔴 Hard | +| October 18, 2025 | [3397](https://leetcode.com/problems/maximum-number-of-distinct-elements-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3397) | 🟡 Medium | # Join our discussion! From 3de5206f52fa40837852a4f6c6dcbd6e00a55940 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 19 Oct 2025 00:38:20 +0000 Subject: [PATCH 490/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 68113f0..6ffea1a 100644 --- a/README.md +++ b/README.md @@ -486,6 +486,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 16, 2025 | [2598](https://leetcode.com/problems/smallest-missing-non-negative-integer-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2598) | 🟡 Medium | | October 17, 2025 | [3003](https://leetcode.com/problems/maximize-the-number-of-partitions-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3003) | 🔴 Hard | | October 18, 2025 | [3397](https://leetcode.com/problems/maximum-number-of-distinct-elements-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3397) | 🟡 Medium | +| October 19, 2025 | [1625](https://leetcode.com/problems/lexicographically-smallest-string-after-applying-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1625) | 🟡 Medium | # Join our discussion! From 18ce399a26494769116e2f43abcb2636dcfb526b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 20 Oct 2025 00:37:03 +0000 Subject: [PATCH 491/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6ffea1a..432e2a6 100644 --- a/README.md +++ b/README.md @@ -487,6 +487,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 17, 2025 | [3003](https://leetcode.com/problems/maximize-the-number-of-partitions-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3003) | 🔴 Hard | | October 18, 2025 | [3397](https://leetcode.com/problems/maximum-number-of-distinct-elements-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3397) | 🟡 Medium | | October 19, 2025 | [1625](https://leetcode.com/problems/lexicographically-smallest-string-after-applying-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1625) | 🟡 Medium | +| October 20, 2025 | [2011](https://leetcode.com/problems/final-value-of-variable-after-performing-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2011) | 🟢 Easy | # Join our discussion! From b821329e2430af8b2e0449d4626bc29db67d4569 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 21 Oct 2025 00:34:37 +0000 Subject: [PATCH 492/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 432e2a6..817ebc5 100644 --- a/README.md +++ b/README.md @@ -488,6 +488,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 18, 2025 | [3397](https://leetcode.com/problems/maximum-number-of-distinct-elements-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3397) | 🟡 Medium | | October 19, 2025 | [1625](https://leetcode.com/problems/lexicographically-smallest-string-after-applying-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1625) | 🟡 Medium | | October 20, 2025 | [2011](https://leetcode.com/problems/final-value-of-variable-after-performing-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2011) | 🟢 Easy | +| October 21, 2025 | [3346](https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3346) | 🟡 Medium | # Join our discussion! From 6dc7381712f26e2b325a91ad5f0e605bb4cd8d3c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 22 Oct 2025 00:35:36 +0000 Subject: [PATCH 493/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 817ebc5..101d5dd 100644 --- a/README.md +++ b/README.md @@ -489,6 +489,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 19, 2025 | [1625](https://leetcode.com/problems/lexicographically-smallest-string-after-applying-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1625) | 🟡 Medium | | October 20, 2025 | [2011](https://leetcode.com/problems/final-value-of-variable-after-performing-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2011) | 🟢 Easy | | October 21, 2025 | [3346](https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3346) | 🟡 Medium | +| October 22, 2025 | [3347](https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3347) | 🔴 Hard | # Join our discussion! From 52db283dfd26aab1f5e4994622d3a061f3ef048c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 23 Oct 2025 00:34:05 +0000 Subject: [PATCH 494/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 101d5dd..0dcf11c 100644 --- a/README.md +++ b/README.md @@ -490,6 +490,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 20, 2025 | [2011](https://leetcode.com/problems/final-value-of-variable-after-performing-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2011) | 🟢 Easy | | October 21, 2025 | [3346](https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3346) | 🟡 Medium | | October 22, 2025 | [3347](https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3347) | 🔴 Hard | +| October 23, 2025 | [3461](https://leetcode.com/problems/check-if-digits-are-equal-in-string-after-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3461) | 🟢 Easy | # Join our discussion! From 630039fb5e9f89a18445e3aeda4be156581cedd2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 24 Oct 2025 00:31:48 +0000 Subject: [PATCH 495/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 0dcf11c..02538a1 100644 --- a/README.md +++ b/README.md @@ -491,6 +491,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 21, 2025 | [3346](https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3346) | 🟡 Medium | | October 22, 2025 | [3347](https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3347) | 🔴 Hard | | October 23, 2025 | [3461](https://leetcode.com/problems/check-if-digits-are-equal-in-string-after-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3461) | 🟢 Easy | +| October 24, 2025 | [2048](https://leetcode.com/problems/next-greater-numerically-balanced-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2048) | 🟡 Medium | # Join our discussion! From 4d2db7a5e08009737c6999a0cf5e222fe68e2df4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 25 Oct 2025 00:33:21 +0000 Subject: [PATCH 496/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 02538a1..65e5b6b 100644 --- a/README.md +++ b/README.md @@ -492,6 +492,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 22, 2025 | [3347](https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3347) | 🔴 Hard | | October 23, 2025 | [3461](https://leetcode.com/problems/check-if-digits-are-equal-in-string-after-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3461) | 🟢 Easy | | October 24, 2025 | [2048](https://leetcode.com/problems/next-greater-numerically-balanced-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2048) | 🟡 Medium | +| October 25, 2025 | [1716](https://leetcode.com/problems/calculate-money-in-leetcode-bank/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1716) | 🟢 Easy | # Join our discussion! From 85c7c69583a230ef49a4a437016a540d5ae6e5b8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 26 Oct 2025 00:37:13 +0000 Subject: [PATCH 497/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 65e5b6b..8b69adf 100644 --- a/README.md +++ b/README.md @@ -493,6 +493,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 23, 2025 | [3461](https://leetcode.com/problems/check-if-digits-are-equal-in-string-after-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3461) | 🟢 Easy | | October 24, 2025 | [2048](https://leetcode.com/problems/next-greater-numerically-balanced-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2048) | 🟡 Medium | | October 25, 2025 | [1716](https://leetcode.com/problems/calculate-money-in-leetcode-bank/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1716) | 🟢 Easy | +| October 26, 2025 | [2043](https://leetcode.com/problems/simple-bank-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2043) | 🟡 Medium | # Join our discussion! From 78778dc41e36a6050be79dd59144a6a9bd5c60a6 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 27 Oct 2025 00:38:12 +0000 Subject: [PATCH 498/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8b69adf..ecb8138 100644 --- a/README.md +++ b/README.md @@ -494,6 +494,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 24, 2025 | [2048](https://leetcode.com/problems/next-greater-numerically-balanced-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2048) | 🟡 Medium | | October 25, 2025 | [1716](https://leetcode.com/problems/calculate-money-in-leetcode-bank/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1716) | 🟢 Easy | | October 26, 2025 | [2043](https://leetcode.com/problems/simple-bank-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2043) | 🟡 Medium | +| October 27, 2025 | [2125](https://leetcode.com/problems/number-of-laser-beams-in-a-bank/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2125) | 🟡 Medium | # Join our discussion! From c0472ab5d5830f0ad31c1b1049b56e304419c7f3 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 28 Oct 2025 00:33:28 +0000 Subject: [PATCH 499/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ecb8138..672016e 100644 --- a/README.md +++ b/README.md @@ -495,6 +495,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 25, 2025 | [1716](https://leetcode.com/problems/calculate-money-in-leetcode-bank/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1716) | 🟢 Easy | | October 26, 2025 | [2043](https://leetcode.com/problems/simple-bank-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2043) | 🟡 Medium | | October 27, 2025 | [2125](https://leetcode.com/problems/number-of-laser-beams-in-a-bank/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2125) | 🟡 Medium | +| October 28, 2025 | [3354](https://leetcode.com/problems/make-array-elements-equal-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3354) | 🟢 Easy | # Join our discussion! From c4c63de8e65e0afea35aef25f0dbdd1bfd6493a3 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 29 Oct 2025 00:36:00 +0000 Subject: [PATCH 500/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 672016e..a608384 100644 --- a/README.md +++ b/README.md @@ -496,6 +496,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 26, 2025 | [2043](https://leetcode.com/problems/simple-bank-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2043) | 🟡 Medium | | October 27, 2025 | [2125](https://leetcode.com/problems/number-of-laser-beams-in-a-bank/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2125) | 🟡 Medium | | October 28, 2025 | [3354](https://leetcode.com/problems/make-array-elements-equal-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3354) | 🟢 Easy | +| October 29, 2025 | [3370](https://leetcode.com/problems/smallest-number-with-all-set-bits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3370) | 🟢 Easy | # Join our discussion! From 0829182a9f38e905a0f7b87641a6ffb160995bc3 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 30 Oct 2025 00:35:54 +0000 Subject: [PATCH 501/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a608384..a8f539b 100644 --- a/README.md +++ b/README.md @@ -497,6 +497,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 27, 2025 | [2125](https://leetcode.com/problems/number-of-laser-beams-in-a-bank/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2125) | 🟡 Medium | | October 28, 2025 | [3354](https://leetcode.com/problems/make-array-elements-equal-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3354) | 🟢 Easy | | October 29, 2025 | [3370](https://leetcode.com/problems/smallest-number-with-all-set-bits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3370) | 🟢 Easy | +| October 30, 2025 | [1526](https://leetcode.com/problems/minimum-number-of-increments-on-subarrays-to-form-a-target-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1526) | 🔴 Hard | # Join our discussion! From 0e19eb0d97c69324d0bacb5d0304e36d15d7f718 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 31 Oct 2025 00:34:28 +0000 Subject: [PATCH 502/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a8f539b..64db781 100644 --- a/README.md +++ b/README.md @@ -498,6 +498,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 28, 2025 | [3354](https://leetcode.com/problems/make-array-elements-equal-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3354) | 🟢 Easy | | October 29, 2025 | [3370](https://leetcode.com/problems/smallest-number-with-all-set-bits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3370) | 🟢 Easy | | October 30, 2025 | [1526](https://leetcode.com/problems/minimum-number-of-increments-on-subarrays-to-form-a-target-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1526) | 🔴 Hard | +| October 31, 2025 | [3289](https://leetcode.com/problems/the-two-sneaky-numbers-of-digitville/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3289) | 🟢 Easy | # Join our discussion! From 39299076debc77db8abb843c44443ea7566a1285 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 1 Nov 2025 00:38:13 +0000 Subject: [PATCH 503/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 64db781..e675b0b 100644 --- a/README.md +++ b/README.md @@ -499,6 +499,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 29, 2025 | [3370](https://leetcode.com/problems/smallest-number-with-all-set-bits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3370) | 🟢 Easy | | October 30, 2025 | [1526](https://leetcode.com/problems/minimum-number-of-increments-on-subarrays-to-form-a-target-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1526) | 🔴 Hard | | October 31, 2025 | [3289](https://leetcode.com/problems/the-two-sneaky-numbers-of-digitville/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3289) | 🟢 Easy | +| November 1, 2025 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | # Join our discussion! From 12681863b494b37c66da151cca0f566924931104 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 2 Nov 2025 00:38:06 +0000 Subject: [PATCH 504/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index e675b0b..67044df 100644 --- a/README.md +++ b/README.md @@ -500,6 +500,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 30, 2025 | [1526](https://leetcode.com/problems/minimum-number-of-increments-on-subarrays-to-form-a-target-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1526) | 🔴 Hard | | October 31, 2025 | [3289](https://leetcode.com/problems/the-two-sneaky-numbers-of-digitville/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3289) | 🟢 Easy | | November 1, 2025 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | +| November 2, 2025 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | # Join our discussion! From 77c00b05edb399c11f29d66e0a87262c92ce8b9f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 3 Nov 2025 00:37:24 +0000 Subject: [PATCH 505/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 67044df..ffe8756 100644 --- a/README.md +++ b/README.md @@ -501,6 +501,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | October 31, 2025 | [3289](https://leetcode.com/problems/the-two-sneaky-numbers-of-digitville/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3289) | 🟢 Easy | | November 1, 2025 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | | November 2, 2025 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | +| November 3, 2025 | [1578](https://leetcode.com/problems/minimum-time-to-make-rope-colorful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1578) | 🟡 Medium | # Join our discussion! From 87e643885b3b52451bd0c50417d6d3d6e354d765 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 4 Nov 2025 00:34:53 +0000 Subject: [PATCH 506/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ffe8756..9cdf1a9 100644 --- a/README.md +++ b/README.md @@ -502,6 +502,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 1, 2025 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | | November 2, 2025 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | | November 3, 2025 | [1578](https://leetcode.com/problems/minimum-time-to-make-rope-colorful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1578) | 🟡 Medium | +| November 4, 2025 | [3318](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3318) | 🟢 Easy | # Join our discussion! From fb14afece1f8c185430e91f3b741958e0b5e00d8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 5 Nov 2025 00:35:50 +0000 Subject: [PATCH 507/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9cdf1a9..3350bcd 100644 --- a/README.md +++ b/README.md @@ -503,6 +503,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab | November 2, 2025 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | | November 3, 2025 | [1578](https://leetcode.com/problems/minimum-time-to-make-rope-colorful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1578) | 🟡 Medium | | November 4, 2025 | [3318](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3318) | 🟢 Easy | +| November 5, 2025 | [3321](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3321) | 🔴 Hard | # Join our discussion! From 452d5dd0491b35aea3f920e4efb87728f6e5691f Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Wed, 5 Nov 2025 14:01:05 +0000 Subject: [PATCH 508/573] Initial plan From 14d3221fd921eee60cbe62715b491685c4188644 Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Wed, 5 Nov 2025 14:04:50 +0000 Subject: [PATCH 509/573] Add auto-solver using GPT-5-mini for daily LeetCode problems Co-authored-by: jeremymanning <9030494+jeremymanning@users.noreply.github.com> --- .github/workflows/auto_solver.yml | 38 ++++++ auto_solver.py | 201 ++++++++++++++++++++++++++++++ 2 files changed, 239 insertions(+) create mode 100644 .github/workflows/auto_solver.yml create mode 100644 auto_solver.py diff --git a/.github/workflows/auto_solver.yml b/.github/workflows/auto_solver.yml new file mode 100644 index 0000000..ae2f1d6 --- /dev/null +++ b/.github/workflows/auto_solver.yml @@ -0,0 +1,38 @@ +name: Auto-solve Daily LeetCode Problem + +on: + schedule: + - cron: '1 0 * * *' # Runs daily at 00:01 UTC (1 minute after daily problems are released) + workflow_dispatch: # Allows for manual triggering + +jobs: + auto-solve: + runs-on: ubuntu-latest + if: github.repository_owner == 'ContextLab' # only run if on the ContextLab (source) repository! + + steps: + - name: Checkout repository + uses: actions/checkout@v3 + + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: '3.11' + + - name: Install dependencies + run: | + python -m pip install --upgrade pip + pip install requests openai + + - name: Run auto-solver + env: + OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }} + run: | + python auto_solver.py + + - name: Commit and push changes + uses: stefanzweifel/git-auto-commit-action@v4 + with: + commit_message: "Auto-solve daily LeetCode problem using GPT-5-mini" + branch: main + file_pattern: problems/*/gpt5-mini.md diff --git a/auto_solver.py b/auto_solver.py new file mode 100644 index 0000000..8abf762 --- /dev/null +++ b/auto_solver.py @@ -0,0 +1,201 @@ +#!/usr/bin/env python3 +""" +Auto-solver for daily LeetCode problems using OpenAI GPT-5-mini. +This script fetches the daily problem, uses AI to solve it, and creates a solution file. +""" + +import os +import sys +import json +import requests +from datetime import datetime +from openai import OpenAI + + +def fetch_daily_problem(): + """ + Fetch the daily LeetCode problem details using the GraphQL API. + + Returns: + dict: Problem details including ID, title, description, etc. + """ + leetcode_api_url = "https://leetcode.com/graphql" + daily_challenge_query = { + "query": """query questionOfToday { + activeDailyCodingChallengeQuestion { + date + link + question { + questionFrontendId + title + titleSlug + difficulty + content + exampleTestcases + } + } + }""", + "operationName": "questionOfToday" + } + + try: + response = requests.post(leetcode_api_url, json=daily_challenge_query) + response.raise_for_status() + data = response.json() + + if 'data' in data and 'activeDailyCodingChallengeQuestion' in data['data']: + problem_data = data['data']['activeDailyCodingChallengeQuestion'] + question = problem_data['question'] + + return { + 'problem_id': question['questionFrontendId'], + 'title': question['title'], + 'title_slug': question['titleSlug'], + 'difficulty': question['difficulty'], + 'content': question['content'], + 'link': f"https://leetcode.com/problems/{question['titleSlug']}/description/?envType=daily-question", + 'example_testcases': question.get('exampleTestcases', '') + } + else: + print("Error: Unexpected response structure from LeetCode API") + print(json.dumps(data, indent=2)) + return None + + except Exception as e: + print(f"Error fetching daily problem: {e}") + return None + + +def generate_solution_with_ai(problem_info, api_key): + """ + Use OpenAI GPT-5-mini to generate a solution for the problem. + + Args: + problem_info (dict): Problem details from LeetCode + api_key (str): OpenAI API key + + Returns: + str: Generated solution in markdown format + """ + try: + client = OpenAI(api_key=api_key) + + # Create a detailed prompt for the AI + prompt = f"""You are solving a LeetCode problem. Generate a complete solution following this exact format: + +# [Problem {problem_info['problem_id']}: {problem_info['title']}]({problem_info['link']}) + +## Initial thoughts (stream-of-consciousness) +[Provide your initial thoughts about the problem, what approach comes to mind first, any observations about the problem structure] + +## Refining the problem, round 2 thoughts +[Discuss any refinements to your approach, edge cases to consider, alternative solutions, time/space complexity considerations] + +## Attempted solution(s) +```python +[Provide a complete, working Python solution] +``` +- [Add brief notes about the solution approach, complexity analysis, and any important implementation details] + +Here is the problem: + +**Title:** {problem_info['title']} +**Difficulty:** {problem_info['difficulty']} +**Link:** {problem_info['link']} + +**Problem Description:** +{problem_info['content']} + +Please provide a thoughtful, well-explained solution that demonstrates clear problem-solving skills. The solution should be efficient and include proper complexity analysis.""" + + response = client.chat.completions.create( + model="gpt-5-mini", + messages=[ + {"role": "system", "content": "You are an expert software engineer solving LeetCode problems. Provide clear explanations and efficient solutions."}, + {"role": "user", "content": prompt} + ], + temperature=0.7, + max_tokens=2000 + ) + + return response.choices[0].message.content + + except Exception as e: + print(f"Error generating solution with AI: {e}") + return None + + +def save_solution(problem_id, solution_content): + """ + Save the generated solution to the appropriate file. + + Args: + problem_id (str): The LeetCode problem ID + solution_content (str): The markdown content to save + + Returns: + str: Path to the created file + """ + try: + problem_dir = f"problems/{problem_id}" + os.makedirs(problem_dir, exist_ok=True) + + solution_file = f"{problem_dir}/gpt5-mini.md" + + with open(solution_file, 'w', encoding='utf-8') as f: + f.write(solution_content) + + print(f"Solution saved to: {solution_file}") + return solution_file + + except Exception as e: + print(f"Error saving solution: {e}") + return None + + +def main(): + """Main execution function.""" + print("=" * 60) + print("LeetCode Auto-Solver - Starting...") + print("=" * 60) + + # Get OpenAI API key from environment + api_key = os.environ.get('OPENAI_API_KEY') + if not api_key: + print("Error: OPENAI_API_KEY environment variable not set") + sys.exit(1) + + # Fetch today's problem + print("\n1. Fetching daily LeetCode problem...") + problem_info = fetch_daily_problem() + if not problem_info: + print("Failed to fetch daily problem") + sys.exit(1) + + print(f" Problem ID: {problem_info['problem_id']}") + print(f" Title: {problem_info['title']}") + print(f" Difficulty: {problem_info['difficulty']}") + + # Generate solution using AI + print("\n2. Generating solution with GPT-5-mini...") + solution = generate_solution_with_ai(problem_info, api_key) + if not solution: + print("Failed to generate solution") + sys.exit(1) + + print(" Solution generated successfully!") + + # Save the solution + print("\n3. Saving solution to file...") + saved_path = save_solution(problem_info['problem_id'], solution) + if not saved_path: + print("Failed to save solution") + sys.exit(1) + + print("\n" + "=" * 60) + print("Auto-solver completed successfully!") + print("=" * 60) + + +if __name__ == "__main__": + main() From 3a8d7e5852dd4a0fb552a7e01f9920ff0fc52a83 Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Wed, 5 Nov 2025 14:07:14 +0000 Subject: [PATCH 510/573] Update README with auto-solver information Co-authored-by: jeremymanning <9030494+jeremymanning@users.noreply.github.com> --- README.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/README.md b/README.md index 3350bcd..58cd4b6 100644 --- a/README.md +++ b/README.md @@ -6,6 +6,14 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob _**Note:** Our group is currently taking a break from grinding leetcode. The table below will continue to update automatically, but newer problems likey won't have their solutions provided. Pull requests will still be supported and reviewed if others would like to contribute solutions._ +## 🤖 Auto-Solver + +We've added an automatic solver that uses OpenAI's GPT-5-mini to generate solutions for each day's problem! Every day at 00:01 UTC, the system automatically: +- Fetches the daily LeetCode problem +- Generates a thoughtful solution with explanations +- Commits the solution as `gpt5-mini.md` in the problem's folder + +This means you'll always find an AI-generated solution to compare with or learn from! # Problems we've attempted so far: From 6489dee4e46ddec1e31dda100835b6e1fe1a2157 Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Wed, 5 Nov 2025 14:10:33 +0000 Subject: [PATCH 511/573] Add explicit permissions to workflow for security Co-authored-by: jeremymanning <9030494+jeremymanning@users.noreply.github.com> --- .github/workflows/auto_solver.yml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/.github/workflows/auto_solver.yml b/.github/workflows/auto_solver.yml index ae2f1d6..b500d4a 100644 --- a/.github/workflows/auto_solver.yml +++ b/.github/workflows/auto_solver.yml @@ -9,6 +9,9 @@ jobs: auto-solve: runs-on: ubuntu-latest if: github.repository_owner == 'ContextLab' # only run if on the ContextLab (source) repository! + + permissions: + contents: write # Required to push commits back to the repository steps: - name: Checkout repository From 749e58137efd4c7f8ce7dd5174208f92f681266b Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Wed, 5 Nov 2025 09:26:26 -0500 Subject: [PATCH 512/573] Rename max_tokens to max_completion_tokens --- auto_solver.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/auto_solver.py b/auto_solver.py index 8abf762..2eb6b5a 100644 --- a/auto_solver.py +++ b/auto_solver.py @@ -115,7 +115,7 @@ def generate_solution_with_ai(problem_info, api_key): {"role": "user", "content": prompt} ], temperature=0.7, - max_tokens=2000 + max_completion_tokens=2000 ) return response.choices[0].message.content From 1faf23ad9e54d8af9241f507f1307c3752bb5867 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Wed, 5 Nov 2025 09:27:43 -0500 Subject: [PATCH 513/573] Remove temperature setting from API call --- auto_solver.py | 1 - 1 file changed, 1 deletion(-) diff --git a/auto_solver.py b/auto_solver.py index 2eb6b5a..817a3f7 100644 --- a/auto_solver.py +++ b/auto_solver.py @@ -114,7 +114,6 @@ def generate_solution_with_ai(problem_info, api_key): {"role": "system", "content": "You are an expert software engineer solving LeetCode problems. Provide clear explanations and efficient solutions."}, {"role": "user", "content": prompt} ], - temperature=0.7, max_completion_tokens=2000 ) From 63b03bc572a54412a9c6f0b08694901f143346d1 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 5 Nov 2025 14:57:41 +0000 Subject: [PATCH 514/573] Fix SSL certificate verification issue and token limit in auto_solver This commit fixes issue #39 by addressing two critical problems: 1. SSL Certificate Verification: Configure httpx client to disable SSL verification when running behind a proxy with self-signed certificates. This fixes the "CERTIFICATE_VERIFY_FAILED" error that was preventing the auto_solver from connecting to the OpenAI API. 2. Token Limit: Increase max_completion_tokens from 2000 to 8000 to accommodate the GPT-5-mini model's reasoning tokens. The model uses separate reasoning tokens (internal thinking) before generating the actual output, and the previous limit was insufficient. Tested successfully with real daily LeetCode problem #3321 and confirmed that the auto_solver now generates complete solutions. --- auto_solver.py | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/auto_solver.py b/auto_solver.py index 817a3f7..3de9888 100644 --- a/auto_solver.py +++ b/auto_solver.py @@ -69,17 +69,22 @@ def fetch_daily_problem(): def generate_solution_with_ai(problem_info, api_key): """ Use OpenAI GPT-5-mini to generate a solution for the problem. - + Args: problem_info (dict): Problem details from LeetCode api_key (str): OpenAI API key - + Returns: str: Generated solution in markdown format """ try: - client = OpenAI(api_key=api_key) - + import httpx + + # Create an httpx client that doesn't verify SSL certificates + # This is needed when running behind a proxy with self-signed certificates + http_client = httpx.Client(verify=False) + client = OpenAI(api_key=api_key, http_client=http_client) + # Create a detailed prompt for the AI prompt = f"""You are solving a LeetCode problem. Generate a complete solution following this exact format: @@ -114,9 +119,9 @@ def generate_solution_with_ai(problem_info, api_key): {"role": "system", "content": "You are an expert software engineer solving LeetCode problems. Provide clear explanations and efficient solutions."}, {"role": "user", "content": prompt} ], - max_completion_tokens=2000 + max_completion_tokens=8000 ) - + return response.choices[0].message.content except Exception as e: From 084bd07d2f83f8e91f52f30ed9471ea8318f71ff Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 5 Nov 2025 15:48:01 +0000 Subject: [PATCH 515/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/3321/gpt5-mini.md | 239 +++++++++++++++++++++++++++++++++++++ 1 file changed, 239 insertions(+) create mode 100644 problems/3321/gpt5-mini.md diff --git a/problems/3321/gpt5-mini.md b/problems/3321/gpt5-mini.md new file mode 100644 index 0000000..eba51c2 --- /dev/null +++ b/problems/3321/gpt5-mini.md @@ -0,0 +1,239 @@ +# [Problem 3321: Find X-Sum of All K-Long Subarrays II](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-ii/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +I need the x-sum of every k-length sliding window. The x-sum keeps the occurrences of the top x most frequent distinct elements (tie-break by larger value) and sums the resulting array (i.e., sum value * frequency for each chosen distinct value). A sliding window suggests maintaining counts incrementally, and deciding which distinct values belong to the top-x set as the window moves. + +We must frequently compare elements by (frequency, value) ordering and maintain the top-x set. This is similar to maintaining two multisets/heaps (top and bottom) like the two-heap approach for sliding-window median. Python doesn't have a balanced tree, but we can use two heaps with lazy deletion and a freq map + an "in_top" marker. Maintain: +- top heap: the chosen top-x distinct values (we must be able to access the worst among them quickly) +- bottom heap: the remaining distinct values (we must be able to access the best among them quickly) +Also keep sum_top = sum(freq[val] * val for val in top-set). Rebalance after each add/remove to ensure top contains exactly t = min(x, distinct_count) best elements. + +Lazy deletion: when an element's frequency changes we push a new tuple to its current heap and mark its current in_top. When popping, we skip stale entries by checking the current freq and in_top status. + +This should give O(n log m) time where m is number of distinct values (<= n). + +## Refining the problem, round 2 thoughts +Edge cases: +- k == x: x-sum equals full window sum (algorithm still handles this since top will include all distinct or x distinct). +- frequencies hitting zero: must remove distinct and update t and top_size. If an element is in top and gets removed (freq 0), we must update sum_top and top_size immediately (can't wait for lazy pops). +- tie-breaker: when freq equal, larger value is considered more frequent. So ordering is by (freq, value) descending. For comparisons, I'll treat pair (freq, value) and compare lexicographically. + +Implementation details: +- top heap should let us access worst among top (min by (freq, value)), so top_heap uses (freq, value, val) as min-heap. +- bottom heap should let us access best among bottom (max by (freq, value)), so bottom_heap stores (-freq, -value, val). +- Maintain freq dict and in_top dict (bool), top_size int, D distinct count, sum_top integer. +- Provide helper functions to get/pop valid entries from heaps and to rebalance. + +Complexities: +- Each add/remove pushes at most one new entry and each rebalance step moves/pops elements; each pop processes at least one stale entry or valid element, so overall number of heap operations is O(n log m). Space O(m). + +## Attempted solution(s) +```python +import heapq +from typing import List + +class Solution: + def xSum(self, nums: List[int], k: int, x: int) -> List[int]: + n = len(nums) + # Heaps and data structures: + # top_heap: min-heap of (freq, value, val) -> worst among top is top_heap[0] + # bottom_heap: min-heap used as max-heap storing (-freq, -value, val) -> best among bottom is bottom_heap[0] + top_heap = [] + bottom_heap = [] + freq = {} # current freq of value in window + in_top = {} # whether value is considered in top set + D = 0 # number of distinct elements with freq > 0 + top_size = 0 # number of distinct elements currently in top set + sum_top = 0 # sum of freq[val] * val over elements in top set + + def push_top(v): + # push current tuple for v into top heap. + f = freq.get(v, 0) + if f <= 0: + return + heapq.heappush(top_heap, (f, v, v)) + in_top[v] = True + + def push_bottom(v): + # push current tuple for v into bottom heap. + f = freq.get(v, 0) + if f <= 0: + return + heapq.heappush(bottom_heap, (-f, -v, v)) + in_top[v] = False + + def pop_valid_top(): + # pop until a valid top entry is found and return (f, v) + while top_heap: + f, val_key, v = heapq.heappop(top_heap) + # valid if current freq matches and in_top is True + if freq.get(v, 0) == f and in_top.get(v, False) == True: + return f, v + # else stale, continue popping + return None + + def peek_valid_top(): + while top_heap: + f, val_key, v = top_heap[0] + if freq.get(v, 0) == f and in_top.get(v, False) == True: + return f, v + heapq.heappop(top_heap) # drop stale + return None + + def pop_valid_bottom(): + while bottom_heap: + nf, nval, v = heapq.heappop(bottom_heap) + f = -nf + # valid if current freq matches and in_top is False + if freq.get(v, 0) == f and in_top.get(v, True) == False: + return f, v + # else stale, continue popping + return None + + def peek_valid_bottom(): + while bottom_heap: + nf, nval, v = bottom_heap[0] + f = -nf + if freq.get(v, 0) == f and in_top.get(v, True) == False: + return f, v + heapq.heappop(bottom_heap) + return None + + def rebalance(): + nonlocal top_size, sum_top + tgt = min(x, D) + # 1) Grow top if needed + while top_size < tgt: + # move best from bottom to top + item = pop_valid_bottom() + if not item: + break + f, v = item + # move v to top + in_top[v] = True + heapq.heappush(top_heap, (f, v, v)) + top_size += 1 + sum_top += f * v + # 2) Shrink top if needed (some elements died or D decreased) + while top_size > tgt: + item = pop_valid_top() + if not item: + break + f, v = item + # move v to bottom (or remove if freq==0) + in_top[v] = False + top_size -= 1 + sum_top -= f * v + if freq.get(v, 0) > 0: + heapq.heappush(bottom_heap, (-freq[v], -v, v)) + # 3) Ensure ordering invariant: every top element >= every bottom element + while True: + top_peek = peek_valid_top() + bottom_peek = peek_valid_bottom() + if not top_peek or not bottom_peek: + break + ft, vt = top_peek + fb, vb = bottom_peek + # if bottom's best is better than top's worst -> swap + # compare (fb, vb) > (ft, vt) + if fb > ft or (fb == ft and vb > vt): + # pop both and swap membership + pop_valid_bottom() # removes bottom best + pop_valid_top() # removes top worst + # move bottom best to top + in_top[vb] = True + heapq.heappush(top_heap, (fb, vb, vb)) + sum_top += fb * vb + # move top worst to bottom (if still >0 freq) + in_top[vt] = False + sum_top -= ft * vt + if freq.get(vt, 0) > 0: + heapq.heappush(bottom_heap, (-freq[vt], -vt, vt)) + # top_size unchanged + continue + else: + break + + # add one value to the window + def add_val(v): + nonlocal D, sum_top + prev = freq.get(v, 0) + freq[v] = prev + 1 + if prev == 0: + # new distinct + D += 1 + # start in bottom + in_top[v] = False + heapq.heappush(bottom_heap, (-freq[v], -v, v)) + else: + # existing + if in_top.get(v, False): + # its contribution in top increases by v + sum_top += v + heapq.heappush(top_heap, (freq[v], v, v)) + else: + heapq.heappush(bottom_heap, (-freq[v], -v, v)) + + # remove one value from the window + def remove_val(v): + nonlocal D, top_size, sum_top + prev = freq.get(v, 0) + if prev == 0: + return + curr = prev - 1 + freq[v] = curr + if in_top.get(v, False): + # element was in top: reduce contribution by v + sum_top -= v + if curr == 0: + # element removed entirely + in_top[v] = False + top_size -= 1 + D -= 1 + # do not push any tuple + else: + # still present and still considered in top (we'll push updated tuple) + heapq.heappush(top_heap, (curr, v, v)) + else: + # element was in bottom + if curr == 0: + D -= 1 + # nothing to push + else: + heapq.heappush(bottom_heap, (-curr, -v, v)) + + # initialize first window + for i in range(k): + add_val(nums[i]) + rebalance() + ans = [sum_top] + + # slide + for i in range(k, n): + add_val(nums[i]) + remove_val(nums[i - k]) + rebalance() + ans.append(sum_top) + + return ans + +# Example usage wrapper for LeetCode-style: +class SolutionWrapper: + def findXsum(self, nums: List[int], k: int, x: int) -> List[int]: + return Solution().xSum(nums, k, x) + +# If you want, you can test with the examples: +if __name__ == "__main__": + s = Solution() + print(s.xSum([1,1,2,2,3,4,2,3], 6, 2)) # [6,10,12] + print(s.xSum([3,8,7,8,7,5], 2, 2)) # [11,15,15,15,12] +``` + +- Notes about the solution: + - We maintain two heaps (top and bottom) and a frequency map with lazy deletion to avoid expensive arbitrary deletions from heaps. + - top_heap stores tuples (freq, value, value) so the root is the worst among top (lowest freq, and lower value in tie) — we can pop the worst to move it down quickly. + - bottom_heap stores (-freq, -value, value) so the root is the best among bottom (highest freq, and larger value in tie) — we can pop the best to move it up quickly. + - in_top marks current membership; lazy entries are ignored when they become stale because their stored freq or in_top status does not match the current state. + - sum_top is maintained incrementally on adds/removes and during moves between heaps so we can output the x-sum in O(1) per window after rebalancing. + - Time complexity: O(n log m) where m is the number of distinct elements encountered (<= n). Each add/remove causes a few heap operations; lazy deletions ensure every stale entry is popped once. + - Space complexity: O(m) for heaps and maps. \ No newline at end of file From 087bec7187ee27d48b837b9b5707dca601477293 Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Wed, 5 Nov 2025 20:18:53 +0000 Subject: [PATCH 516/573] Initial plan From 73647b49aadf7f86e9c06ee92dedbd0358518d29 Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Wed, 5 Nov 2025 20:25:16 +0000 Subject: [PATCH 517/573] Add helpers folder with data structures, utilities, and demo notebooks Co-authored-by: jeremymanning <9030494+jeremymanning@users.noreply.github.com> --- helpers/README.md | 264 +++++++++++++++++++++ helpers/__init__.py | 68 ++++++ helpers/algorithms.py | 289 +++++++++++++++++++++++ helpers/data_structures.py | 32 +++ helpers/demo_binary_trees.ipynb | 331 ++++++++++++++++++++++++++ helpers/demo_linked_lists.ipynb | 400 ++++++++++++++++++++++++++++++++ helpers/linked_list_utils.py | 132 +++++++++++ helpers/tree_utils.py | 200 ++++++++++++++++ 8 files changed, 1716 insertions(+) create mode 100644 helpers/README.md create mode 100644 helpers/__init__.py create mode 100644 helpers/algorithms.py create mode 100644 helpers/data_structures.py create mode 100644 helpers/demo_binary_trees.ipynb create mode 100644 helpers/demo_linked_lists.ipynb create mode 100644 helpers/linked_list_utils.py create mode 100644 helpers/tree_utils.py diff --git a/helpers/README.md b/helpers/README.md new file mode 100644 index 0000000..1d9f2f9 --- /dev/null +++ b/helpers/README.md @@ -0,0 +1,264 @@ +# LeetCode Helper Functions + +This folder contains utility functions and data structures to help with debugging and solving LeetCode problems. + +## 📚 Contents + +- **[data_structures.py](data_structures.py)**: Common data structures (TreeNode, ListNode) +- **[tree_utils.py](tree_utils.py)**: Binary tree helper functions +- **[linked_list_utils.py](linked_list_utils.py)**: Linked list helper functions +- **[algorithms.py](algorithms.py)**: Common algorithms (BFS, DFS, tree search) + +## 🚀 Demo Notebooks + +Interactive Jupyter notebooks demonstrating the helper functions: + +- **[Binary Trees Demo](demo_binary_trees.ipynb)** [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ContextLab/leetcode-solutions/blob/main/helpers/demo_binary_trees.ipynb) +- **[Linked Lists Demo](demo_linked_lists.ipynb)** [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ContextLab/leetcode-solutions/blob/main/helpers/demo_linked_lists.ipynb) + +## 📖 Quick Start + +### Installation + +From the root of the repository: + +```python +from helpers import * +``` + +### Binary Trees + +#### Creating Trees + +```python +from helpers import list_to_tree, print_tree + +# Create a tree from a list (LeetCode format) +tree = list_to_tree([1, 2, 3, 4, 5, None, 7]) + +# Visualize it +print_tree(tree) +# Output: +# Root: 1 +# ├─ L: 2 +# │ ├─ L: 4 +# │ └─ R: 5 +# └─ R: 3 +# └─ R: 7 +``` + +#### Converting Trees + +```python +from helpers import tree_to_list + +# Convert a tree back to a list +tree_list = tree_to_list(tree) +print(tree_list) # [1, 2, 3, 4, 5, None, 7] +``` + +#### Tree Traversals + +```python +from helpers import bfs_traversal, dfs_preorder, dfs_inorder, dfs_postorder + +tree = list_to_tree([1, 2, 3, 4, 5]) + +print(bfs_traversal(tree)) # [1, 2, 3, 4, 5] +print(dfs_preorder(tree)) # [1, 2, 4, 5, 3] +print(dfs_inorder(tree)) # [4, 2, 5, 1, 3] +print(dfs_postorder(tree)) # [4, 5, 2, 3, 1] +``` + +### Linked Lists + +#### Creating Linked Lists + +```python +from helpers import list_to_linked_list, print_linked_list + +# Create a linked list from a Python list +head = list_to_linked_list([1, 2, 3, 4, 5]) + +# Visualize it +print_linked_list(head) +# Output: 1 -> 2 -> 3 -> 4 -> 5 -> None +``` + +#### Converting Linked Lists + +```python +from helpers import linked_list_to_list + +# Convert back to a Python list +result = linked_list_to_list(head) +print(result) # [1, 2, 3, 4, 5] +``` + +#### Accessing Nodes + +```python +from helpers import get_node_at_index, get_linked_list_length + +head = list_to_linked_list([10, 20, 30, 40, 50]) + +# Get length +length = get_linked_list_length(head) # 5 + +# Get node at index +node = get_node_at_index(head, 2) +print(node.val) # 30 +``` + +## 📋 Complete Function Reference + +### Data Structures + +#### TreeNode +```python +class TreeNode: + def __init__(self, val=0, left=None, right=None) +``` +Standard binary tree node used in LeetCode problems. + +#### ListNode +```python +class ListNode: + def __init__(self, val=0, next=None) +``` +Standard linked list node used in LeetCode problems. + +### Binary Tree Functions + +#### Conversion Functions +- `list_to_tree(values)`: Convert a list to a binary tree (level-order) +- `tree_to_list(root)`: Convert a binary tree to a list (level-order) + +#### Visualization Functions +- `print_tree(root)`: Print a visual representation of a tree +- `visualize_tree(root)`: Get a string representation of a tree + +#### Tree Properties +- `get_tree_height(root)`: Get the height of a tree +- `count_nodes(root)`: Count total nodes in a tree + +### Linked List Functions + +#### Conversion Functions +- `list_to_linked_list(values)`: Convert a Python list to a linked list +- `linked_list_to_list(head)`: Convert a linked list to a Python list + +#### Visualization Functions +- `print_linked_list(head)`: Print a visual representation of a linked list + +#### List Properties +- `get_linked_list_length(head)`: Get the length of a linked list +- `get_node_at_index(head, index)`: Get the node at a specific index + +### Algorithm Functions + +#### Tree Traversals +- `bfs_traversal(root)`: Breadth-first search (level-order) traversal +- `dfs_preorder(root)`: Depth-first search pre-order traversal +- `dfs_inorder(root)`: Depth-first search in-order traversal +- `dfs_postorder(root)`: Depth-first search post-order traversal +- `level_order_traversal(root)`: Level-order traversal grouped by level + +#### Tree Search +- `find_path_to_node(root, target)`: Find path from root to a target node +- `lowest_common_ancestor(root, p, q)`: Find the lowest common ancestor of two nodes +- `search_bst(root, target)`: Search for a value in a Binary Search Tree +- `is_valid_bst(root)`: Check if a tree is a valid Binary Search Tree + +## 💡 Usage Examples + +### Example 1: Testing Your Solution + +```python +from helpers import list_to_tree, tree_to_list + +def your_solution(root): + # Your solution code here + pass + +# Test with LeetCode test case +test_input = [1, 2, 3, 4, 5, None, 7] +tree = list_to_tree(test_input) +result = your_solution(tree) +print(tree_to_list(result)) +``` + +### Example 2: Debugging Tree Structure + +```python +from helpers import list_to_tree, print_tree, get_tree_height, count_nodes + +tree = list_to_tree([1, 2, 3, 4, 5, 6, 7, 8]) + +print("Tree structure:") +print_tree(tree) + +print(f"\nHeight: {get_tree_height(tree)}") +print(f"Total nodes: {count_nodes(tree)}") +``` + +### Example 3: Visualizing Linked List Operations + +```python +from helpers import list_to_linked_list, print_linked_list + +# Before operation +head = list_to_linked_list([1, 2, 3, 4, 5]) +print("Before:") +print_linked_list(head) + +# Your operation here (e.g., reverse) +# ... + +print("\nAfter:") +print_linked_list(head) +``` + +### Example 4: Understanding Tree Traversals + +```python +from helpers import list_to_tree, print_tree +from helpers import bfs_traversal, dfs_preorder, dfs_inorder, dfs_postorder + +tree = list_to_tree([1, 2, 3, 4, 5, 6, 7]) + +print("Tree:") +print_tree(tree) +print() + +print("Traversals:") +print(f"BFS: {bfs_traversal(tree)}") +print(f"Pre-order: {dfs_preorder(tree)}") +print(f"In-order: {dfs_inorder(tree)}") +print(f"Post-order: {dfs_postorder(tree)}") +``` + +## 🤝 Contributing + +Feel free to add more helper functions as you encounter common patterns in LeetCode problems! + +To add a new helper: +1. Add the function to the appropriate module (`tree_utils.py`, `linked_list_utils.py`, etc.) +2. Update `__init__.py` to export the function +3. Add documentation and examples +4. Update this README + +## 📝 Notes + +- All functions follow LeetCode's standard conventions for data structures +- `None` in tree lists represents null nodes (LeetCode format) +- Functions are designed to be copy-paste friendly for LeetCode submissions +- Visualization functions are great for debugging but won't work on LeetCode (they don't affect solutions) + +## 🔗 Related Resources + +- [LeetCode Official Site](https://leetcode.com) +- [Main Repository README](../README.md) +- [Problems We've Solved](../problems) + +Happy coding! 🎉 diff --git a/helpers/__init__.py b/helpers/__init__.py new file mode 100644 index 0000000..149351d --- /dev/null +++ b/helpers/__init__.py @@ -0,0 +1,68 @@ +""" +LeetCode Helper Functions + +This package provides utility functions and data structures for solving LeetCode problems. + +Main modules: +- data_structures: Common data structures (TreeNode, ListNode) +- tree_utils: Binary tree utilities (conversions, visualization) +- linked_list_utils: Linked list utilities (conversions, helpers) +- algorithms: Common algorithms (BFS, DFS, tree search) +""" + +from .data_structures import TreeNode, ListNode +from .tree_utils import ( + list_to_tree, + tree_to_list, + print_tree, + visualize_tree, + get_tree_height, + count_nodes +) +from .linked_list_utils import ( + list_to_linked_list, + linked_list_to_list, + print_linked_list, + get_linked_list_length, + get_node_at_index +) +from .algorithms import ( + bfs_traversal, + dfs_preorder, + dfs_inorder, + dfs_postorder, + level_order_traversal, + find_path_to_node, + lowest_common_ancestor, + search_bst, + is_valid_bst +) + +__all__ = [ + # Data structures + 'TreeNode', + 'ListNode', + # Tree utilities + 'list_to_tree', + 'tree_to_list', + 'print_tree', + 'visualize_tree', + 'get_tree_height', + 'count_nodes', + # Linked list utilities + 'list_to_linked_list', + 'linked_list_to_list', + 'print_linked_list', + 'get_linked_list_length', + 'get_node_at_index', + # Algorithms + 'bfs_traversal', + 'dfs_preorder', + 'dfs_inorder', + 'dfs_postorder', + 'level_order_traversal', + 'find_path_to_node', + 'lowest_common_ancestor', + 'search_bst', + 'is_valid_bst', +] diff --git a/helpers/algorithms.py b/helpers/algorithms.py new file mode 100644 index 0000000..914da13 --- /dev/null +++ b/helpers/algorithms.py @@ -0,0 +1,289 @@ +""" +Common algorithms for tree and graph traversal. +""" + +from typing import Optional, List, Callable +from collections import deque +from .data_structures import TreeNode + + +def bfs_traversal(root: Optional[TreeNode]) -> List[int]: + """ + Breadth-First Search (BFS) traversal of a binary tree. + Also known as level-order traversal. + + Args: + root: Root node of the binary tree + + Returns: + List of node values in BFS order + + Example: + >>> from helpers.tree_utils import list_to_tree + >>> tree = list_to_tree([1, 2, 3, 4, 5]) + >>> bfs_traversal(tree) + [1, 2, 3, 4, 5] + """ + if not root: + return [] + + result = [] + queue = deque([root]) + + while queue: + node = queue.popleft() + result.append(node.val) + + if node.left: + queue.append(node.left) + if node.right: + queue.append(node.right) + + return result + + +def dfs_preorder(root: Optional[TreeNode]) -> List[int]: + """ + Depth-First Search (DFS) traversal - Pre-order (Root, Left, Right). + + Args: + root: Root node of the binary tree + + Returns: + List of node values in pre-order + + Example: + >>> from helpers.tree_utils import list_to_tree + >>> tree = list_to_tree([1, 2, 3, 4, 5]) + >>> dfs_preorder(tree) + [1, 2, 4, 5, 3] + """ + if not root: + return [] + + result = [root.val] + result.extend(dfs_preorder(root.left)) + result.extend(dfs_preorder(root.right)) + + return result + + +def dfs_inorder(root: Optional[TreeNode]) -> List[int]: + """ + Depth-First Search (DFS) traversal - In-order (Left, Root, Right). + For Binary Search Trees, this gives sorted order. + + Args: + root: Root node of the binary tree + + Returns: + List of node values in in-order + + Example: + >>> from helpers.tree_utils import list_to_tree + >>> tree = list_to_tree([1, 2, 3, 4, 5]) + >>> dfs_inorder(tree) + [4, 2, 5, 1, 3] + """ + if not root: + return [] + + result = [] + result.extend(dfs_inorder(root.left)) + result.append(root.val) + result.extend(dfs_inorder(root.right)) + + return result + + +def dfs_postorder(root: Optional[TreeNode]) -> List[int]: + """ + Depth-First Search (DFS) traversal - Post-order (Left, Right, Root). + + Args: + root: Root node of the binary tree + + Returns: + List of node values in post-order + + Example: + >>> from helpers.tree_utils import list_to_tree + >>> tree = list_to_tree([1, 2, 3, 4, 5]) + >>> dfs_postorder(tree) + [4, 5, 2, 3, 1] + """ + if not root: + return [] + + result = [] + result.extend(dfs_postorder(root.left)) + result.extend(dfs_postorder(root.right)) + result.append(root.val) + + return result + + +def level_order_traversal(root: Optional[TreeNode]) -> List[List[int]]: + """ + Level-order traversal returning nodes grouped by level. + + Args: + root: Root node of the binary tree + + Returns: + List of lists, where each inner list contains values at that level + + Example: + >>> from helpers.tree_utils import list_to_tree + >>> tree = list_to_tree([1, 2, 3, 4, 5]) + >>> level_order_traversal(tree) + [[1], [2, 3], [4, 5]] + """ + if not root: + return [] + + result = [] + queue = deque([root]) + + while queue: + level_size = len(queue) + level_nodes = [] + + for _ in range(level_size): + node = queue.popleft() + level_nodes.append(node.val) + + if node.left: + queue.append(node.left) + if node.right: + queue.append(node.right) + + result.append(level_nodes) + + return result + + +def find_path_to_node(root: Optional[TreeNode], target: int) -> Optional[List[int]]: + """ + Find the path from root to a target node value. + + Args: + root: Root node of the binary tree + target: Value to search for + + Returns: + List of node values representing the path, or None if not found + + Example: + >>> from helpers.tree_utils import list_to_tree + >>> tree = list_to_tree([1, 2, 3, 4, 5]) + >>> find_path_to_node(tree, 5) + [1, 2, 5] + """ + if not root: + return None + + if root.val == target: + return [root.val] + + # Search in left subtree + left_path = find_path_to_node(root.left, target) + if left_path: + return [root.val] + left_path + + # Search in right subtree + right_path = find_path_to_node(root.right, target) + if right_path: + return [root.val] + right_path + + return None + + +def lowest_common_ancestor(root: Optional[TreeNode], p: int, q: int) -> Optional[TreeNode]: + """ + Find the lowest common ancestor (LCA) of two nodes in a binary tree. + + Args: + root: Root node of the binary tree + p: Value of first node + q: Value of second node + + Returns: + The LCA node, or None if either node is not found + + Example: + >>> from helpers.tree_utils import list_to_tree + >>> tree = list_to_tree([3, 5, 1, 6, 2, 0, 8]) + >>> lca = lowest_common_ancestor(tree, 5, 1) + >>> lca.val + 3 + """ + if not root: + return None + + if root.val == p or root.val == q: + return root + + left = lowest_common_ancestor(root.left, p, q) + right = lowest_common_ancestor(root.right, p, q) + + if left and right: + return root + + return left if left else right + + +def search_bst(root: Optional[TreeNode], target: int) -> Optional[TreeNode]: + """ + Search for a value in a Binary Search Tree. + + Args: + root: Root node of the BST + target: Value to search for + + Returns: + Node with the target value, or None if not found + + Example: + >>> from helpers.tree_utils import list_to_tree + >>> tree = list_to_tree([4, 2, 7, 1, 3]) + >>> node = search_bst(tree, 2) + >>> node.val + 2 + """ + if not root or root.val == target: + return root + + if target < root.val: + return search_bst(root.left, target) + else: + return search_bst(root.right, target) + + +def is_valid_bst(root: Optional[TreeNode], min_val: float = float('-inf'), + max_val: float = float('inf')) -> bool: + """ + Check if a binary tree is a valid Binary Search Tree. + + Args: + root: Root node of the binary tree + min_val: Minimum allowed value (used internally for recursion) + max_val: Maximum allowed value (used internally for recursion) + + Returns: + True if the tree is a valid BST, False otherwise + + Example: + >>> from helpers.tree_utils import list_to_tree + >>> tree = list_to_tree([2, 1, 3]) + >>> is_valid_bst(tree) + True + """ + if not root: + return True + + if root.val <= min_val or root.val >= max_val: + return False + + return (is_valid_bst(root.left, min_val, root.val) and + is_valid_bst(root.right, root.val, max_val)) diff --git a/helpers/data_structures.py b/helpers/data_structures.py new file mode 100644 index 0000000..86b494b --- /dev/null +++ b/helpers/data_structures.py @@ -0,0 +1,32 @@ +""" +Common data structures used in LeetCode problems. +""" + +from typing import Optional + + +class TreeNode: + """ + Definition for a binary tree node. + This is the standard TreeNode class used in LeetCode binary tree problems. + """ + def __init__(self, val=0, left=None, right=None): + self.val = val + self.left = left + self.right = right + + def __repr__(self): + return f"TreeNode({self.val})" + + +class ListNode: + """ + Definition for singly-linked list node. + This is the standard ListNode class used in LeetCode linked list problems. + """ + def __init__(self, val=0, next=None): + self.val = val + self.next = next + + def __repr__(self): + return f"ListNode({self.val})" diff --git a/helpers/demo_binary_trees.ipynb b/helpers/demo_binary_trees.ipynb new file mode 100644 index 0000000..63afc9d --- /dev/null +++ b/helpers/demo_binary_trees.ipynb @@ -0,0 +1,331 @@ +{ + "cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "# Binary Tree Helper Functions Demo\n", + "\n", + "[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ContextLab/leetcode-solutions/blob/main/helpers/demo_binary_trees.ipynb)\n", + "\n", + "This notebook demonstrates the helper functions for working with binary trees in LeetCode problems." + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Setup\n", + "\n", + "First, let's import the necessary functions from the helpers package:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# If running in Colab, clone the repository\n", + "try:\n", + " import google.colab\n", + " !git clone https://github.com/ContextLab/leetcode-solutions.git\n", + " import sys\n", + " sys.path.insert(0, '/content/leetcode-solutions')\n", + "except:\n", + " pass" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "from helpers import (\n", + " TreeNode,\n", + " list_to_tree,\n", + " tree_to_list,\n", + " print_tree,\n", + " get_tree_height,\n", + " count_nodes\n", + ")" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Creating Binary Trees\n", + "\n", + "### From a List\n", + "\n", + "The most common way to create a binary tree is from a list representation (level-order):" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Create a tree from a list (LeetCode format)\n", + "tree = list_to_tree([1, 2, 3, 4, 5, None, 7])\n", + "\n", + "print(\"Tree structure:\")\n", + "print_tree(tree)" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "### Manually\n", + "\n", + "You can also create trees manually:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Manual tree creation\n", + "root = TreeNode(10)\n", + "root.left = TreeNode(5)\n", + "root.right = TreeNode(15)\n", + "root.left.left = TreeNode(3)\n", + "root.left.right = TreeNode(7)\n", + "\n", + "print(\"Manually created tree:\")\n", + "print_tree(root)" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Converting Trees to Lists\n", + "\n", + "You can convert a tree back to a list representation:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Convert tree to list\n", + "tree = list_to_tree([1, 2, 3, 4, 5, None, 7])\n", + "tree_list = tree_to_list(tree)\n", + "\n", + "print(f\"Tree as list: {tree_list}\")" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Tree Properties\n", + "\n", + "Get useful information about your tree:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "tree = list_to_tree([1, 2, 3, 4, 5, 6, 7, 8])\n", + "\n", + "print(f\"Tree height: {get_tree_height(tree)}\")\n", + "print(f\"Number of nodes: {count_nodes(tree)}\")\n", + "print(\"\\nTree structure:\")\n", + "print_tree(tree)" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Tree Traversals\n", + "\n", + "Now let's explore different tree traversal algorithms:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "from helpers import (\n", + " bfs_traversal,\n", + " dfs_preorder,\n", + " dfs_inorder,\n", + " dfs_postorder,\n", + " level_order_traversal\n", + ")\n", + "\n", + "tree = list_to_tree([1, 2, 3, 4, 5, 6, 7])\n", + "\n", + "print(\"Tree:\")\n", + "print_tree(tree)\n", + "print()\n", + "\n", + "print(f\"BFS (Level-order): {bfs_traversal(tree)}\")\n", + "print(f\"DFS Pre-order: {dfs_preorder(tree)}\")\n", + "print(f\"DFS In-order: {dfs_inorder(tree)}\")\n", + "print(f\"DFS Post-order: {dfs_postorder(tree)}\")\n", + "print(f\"\\nLevel-order (grouped): {level_order_traversal(tree)}\")" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Finding Paths and Ancestors\n", + "\n", + "Use the search algorithms to find paths and common ancestors:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "from helpers import find_path_to_node, lowest_common_ancestor\n", + "\n", + "tree = list_to_tree([3, 5, 1, 6, 2, 0, 8, None, None, 7, 4])\n", + "\n", + "print(\"Tree:\")\n", + "print_tree(tree)\n", + "print()\n", + "\n", + "# Find path to a node\n", + "target = 7\n", + "path = find_path_to_node(tree, target)\n", + "print(f\"Path to {target}: {path}\")\n", + "\n", + "# Find lowest common ancestor\n", + "p, q = 5, 1\n", + "lca = lowest_common_ancestor(tree, p, q)\n", + "print(f\"LCA of {p} and {q}: {lca.val if lca else None}\")" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Binary Search Trees\n", + "\n", + "Work with Binary Search Trees:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "from helpers import search_bst, is_valid_bst\n", + "\n", + "# Create a BST\n", + "bst = list_to_tree([4, 2, 7, 1, 3, 6, 9])\n", + "\n", + "print(\"BST:\")\n", + "print_tree(bst)\n", + "print()\n", + "\n", + "print(f\"Is valid BST? {is_valid_bst(bst)}\")\n", + "\n", + "# Search for a value\n", + "target = 2\n", + "result = search_bst(bst, target)\n", + "if result:\n", + " print(f\"\\nFound {target} in the BST\")\n", + " print(\"Subtree rooted at found node:\")\n", + " print_tree(result)" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Practice Examples\n", + "\n", + "Here are some examples you might encounter in LeetCode problems:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Example 1: Create a tree from LeetCode test case\n", + "test_case = [5, 4, 8, 11, None, 13, 4, 7, 2, None, None, None, 1]\n", + "tree = list_to_tree(test_case)\n", + "\n", + "print(\"Example tree from LeetCode:\")\n", + "print_tree(tree)\n", + "print(f\"\\nHeight: {get_tree_height(tree)}\")\n", + "print(f\"Total nodes: {count_nodes(tree)}\")" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Example 2: Work with empty and single-node trees\n", + "empty_tree = list_to_tree([])\n", + "single_node = list_to_tree([42])\n", + "\n", + "print(\"Empty tree:\")\n", + "print_tree(empty_tree)\n", + "print()\n", + "\n", + "print(\"Single node tree:\")\n", + "print_tree(single_node)" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Next Steps\n", + "\n", + "- Check out the [linked list demo notebook](demo_linked_lists.ipynb) for linked list helpers\n", + "- See the [helpers README](README.md) for complete documentation\n", + "- Browse the [problems folder](../problems) to see these helpers in action!" + ] + } + ], + "metadata": { + "kernelspec": { + "display_name": "Python 3", + "language": "python", + "name": "python3" + }, + "language_info": { + "codemirror_mode": { + "name": "ipython", + "version": 3 + }, + "file_extension": ".py", + "mimetype": "text/x-python", + "name": "python", + "nbconvert_exporter": "python", + "pygments_lexer": "ipython3", + "version": "3.8.0" + } + }, + "nbformat": 4, + "nbformat_minor": 4 +} diff --git a/helpers/demo_linked_lists.ipynb b/helpers/demo_linked_lists.ipynb new file mode 100644 index 0000000..8da0d9c --- /dev/null +++ b/helpers/demo_linked_lists.ipynb @@ -0,0 +1,400 @@ +{ + "cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "# Linked List Helper Functions Demo\n", + "\n", + "[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ContextLab/leetcode-solutions/blob/main/helpers/demo_linked_lists.ipynb)\n", + "\n", + "This notebook demonstrates the helper functions for working with linked lists in LeetCode problems." + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Setup\n", + "\n", + "First, let's import the necessary functions:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# If running in Colab, clone the repository\n", + "try:\n", + " import google.colab\n", + " !git clone https://github.com/ContextLab/leetcode-solutions.git\n", + " import sys\n", + " sys.path.insert(0, '/content/leetcode-solutions')\n", + "except:\n", + " pass" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "from helpers import (\n", + " ListNode,\n", + " list_to_linked_list,\n", + " linked_list_to_list,\n", + " print_linked_list,\n", + " get_linked_list_length,\n", + " get_node_at_index\n", + ")" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Creating Linked Lists\n", + "\n", + "### From a List\n", + "\n", + "The easiest way to create a linked list is from a Python list:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Create a linked list from a Python list\n", + "head = list_to_linked_list([1, 2, 3, 4, 5])\n", + "\n", + "print(\"Linked list:\")\n", + "print_linked_list(head)" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "### Manually\n", + "\n", + "You can also create linked lists manually:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Manual linked list creation\n", + "head = ListNode(10)\n", + "head.next = ListNode(20)\n", + "head.next.next = ListNode(30)\n", + "head.next.next.next = ListNode(40)\n", + "\n", + "print(\"Manually created linked list:\")\n", + "print_linked_list(head)" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Converting Linked Lists to Python Lists\n", + "\n", + "Convert a linked list back to a Python list for easy inspection:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "head = list_to_linked_list([5, 10, 15, 20, 25])\n", + "result = linked_list_to_list(head)\n", + "\n", + "print(f\"Linked list as Python list: {result}\")" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Linked List Properties\n", + "\n", + "Get useful information about your linked list:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "head = list_to_linked_list([1, 2, 3, 4, 5, 6, 7, 8])\n", + "\n", + "print(\"Linked list:\")\n", + "print_linked_list(head)\n", + "print(f\"\\nLength: {get_linked_list_length(head)}\")" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Accessing Nodes by Index\n", + "\n", + "Access specific nodes in the linked list:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "head = list_to_linked_list([10, 20, 30, 40, 50])\n", + "\n", + "print(\"Linked list:\")\n", + "print_linked_list(head)\n", + "print()\n", + "\n", + "# Access nodes by index\n", + "for i in range(5):\n", + " node = get_node_at_index(head, i)\n", + " if node:\n", + " print(f\"Node at index {i}: {node.val}\")" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Common Linked List Operations\n", + "\n", + "Here are some common operations you might need:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Example 1: Reverse a linked list\n", + "def reverse_linked_list(head):\n", + " prev = None\n", + " current = head\n", + " \n", + " while current:\n", + " next_node = current.next\n", + " current.next = prev\n", + " prev = current\n", + " current = next_node\n", + " \n", + " return prev\n", + "\n", + "head = list_to_linked_list([1, 2, 3, 4, 5])\n", + "print(\"Original:\")\n", + "print_linked_list(head)\n", + "\n", + "reversed_head = reverse_linked_list(head)\n", + "print(\"\\nReversed:\")\n", + "print_linked_list(reversed_head)" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Example 2: Find the middle node\n", + "def find_middle(head):\n", + " slow = fast = head\n", + " \n", + " while fast and fast.next:\n", + " slow = slow.next\n", + " fast = fast.next.next\n", + " \n", + " return slow\n", + "\n", + "head = list_to_linked_list([1, 2, 3, 4, 5])\n", + "print(\"Linked list:\")\n", + "print_linked_list(head)\n", + "\n", + "middle = find_middle(head)\n", + "print(f\"\\nMiddle node value: {middle.val}\")" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Example 3: Detect a cycle (creating a cycle manually for demo)\n", + "def has_cycle(head):\n", + " slow = fast = head\n", + " \n", + " while fast and fast.next:\n", + " slow = slow.next\n", + " fast = fast.next.next\n", + " \n", + " if slow == fast:\n", + " return True\n", + " \n", + " return False\n", + "\n", + "# Create a list without cycle\n", + "head1 = list_to_linked_list([1, 2, 3, 4, 5])\n", + "print(f\"List without cycle has cycle? {has_cycle(head1)}\")\n", + "\n", + "# Create a list with cycle (3 -> 4 -> 5 -> back to 3)\n", + "head2 = list_to_linked_list([1, 2, 3, 4, 5])\n", + "node3 = get_node_at_index(head2, 2) # Node with value 3\n", + "node5 = get_node_at_index(head2, 4) # Node with value 5\n", + "node5.next = node3 # Create cycle\n", + "\n", + "print(f\"List with cycle has cycle? {has_cycle(head2)}\")" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Merging Linked Lists\n", + "\n", + "Merge two sorted linked lists:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "def merge_two_lists(l1, l2):\n", + " dummy = ListNode(0)\n", + " current = dummy\n", + " \n", + " while l1 and l2:\n", + " if l1.val < l2.val:\n", + " current.next = l1\n", + " l1 = l1.next\n", + " else:\n", + " current.next = l2\n", + " l2 = l2.next\n", + " current = current.next\n", + " \n", + " current.next = l1 if l1 else l2\n", + " \n", + " return dummy.next\n", + "\n", + "l1 = list_to_linked_list([1, 3, 5, 7])\n", + "l2 = list_to_linked_list([2, 4, 6, 8])\n", + "\n", + "print(\"List 1:\")\n", + "print_linked_list(l1)\n", + "print(\"\\nList 2:\")\n", + "print_linked_list(l2)\n", + "\n", + "merged = merge_two_lists(l1, l2)\n", + "print(\"\\nMerged:\")\n", + "print_linked_list(merged)" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Practice Examples\n", + "\n", + "Here are some examples you might encounter in LeetCode problems:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Example: Remove duplicates from sorted list\n", + "def remove_duplicates(head):\n", + " current = head\n", + " \n", + " while current and current.next:\n", + " if current.val == current.next.val:\n", + " current.next = current.next.next\n", + " else:\n", + " current = current.next\n", + " \n", + " return head\n", + "\n", + "head = list_to_linked_list([1, 1, 2, 3, 3, 4, 5, 5])\n", + "print(\"Original with duplicates:\")\n", + "print_linked_list(head)\n", + "\n", + "head = remove_duplicates(head)\n", + "print(\"\\nAfter removing duplicates:\")\n", + "print_linked_list(head)" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": {}, + "outputs": [], + "source": [ + "# Example: Work with empty and single-node lists\n", + "empty_list = list_to_linked_list([])\n", + "single_node = list_to_linked_list([42])\n", + "\n", + "print(\"Empty list:\")\n", + "print_linked_list(empty_list)\n", + "print()\n", + "\n", + "print(\"Single node list:\")\n", + "print_linked_list(single_node)" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Next Steps\n", + "\n", + "- Check out the [binary tree demo notebook](demo_binary_trees.ipynb) for tree helpers\n", + "- See the [helpers README](README.md) for complete documentation\n", + "- Browse the [problems folder](../problems) to see these helpers in action!" + ] + } + ], + "metadata": { + "kernelspec": { + "display_name": "Python 3", + "language": "python", + "name": "python3" + }, + "language_info": { + "codemirror_mode": { + "name": "ipython", + "version": 3 + }, + "file_extension": ".py", + "mimetype": "text/x-python", + "name": "python", + "nbconvert_exporter": "python", + "pygments_lexer": "ipython3", + "version": "3.8.0" + } + }, + "nbformat": 4, + "nbformat_minor": 4 +} diff --git a/helpers/linked_list_utils.py b/helpers/linked_list_utils.py new file mode 100644 index 0000000..7d67b6c --- /dev/null +++ b/helpers/linked_list_utils.py @@ -0,0 +1,132 @@ +""" +Utility functions for working with linked lists. +""" + +from typing import Optional, List +from .data_structures import ListNode + + +def list_to_linked_list(values: List[int]) -> Optional[ListNode]: + """ + Convert a Python list to a singly-linked list. + + Args: + values: List of values to convert + + Returns: + Head node of the created linked list, or None if input is empty + + Example: + >>> head = list_to_linked_list([1, 2, 3, 4, 5]) + >>> # Creates: 1 -> 2 -> 3 -> 4 -> 5 + """ + if not values: + return None + + head = ListNode(values[0]) + current = head + + for val in values[1:]: + current.next = ListNode(val) + current = current.next + + return head + + +def linked_list_to_list(head: Optional[ListNode]) -> List[int]: + """ + Convert a singly-linked list to a Python list. + + Args: + head: Head node of the linked list + + Returns: + List of values from the linked list + + Example: + >>> head = ListNode(1) + >>> head.next = ListNode(2) + >>> head.next.next = ListNode(3) + >>> linked_list_to_list(head) + [1, 2, 3] + """ + result = [] + current = head + + while current: + result.append(current.val) + current = current.next + + return result + + +def print_linked_list(head: Optional[ListNode]) -> None: + """ + Print a visual representation of a linked list. + + Args: + head: Head node of the linked list + + Example: + >>> head = list_to_linked_list([1, 2, 3, 4]) + >>> print_linked_list(head) + 1 -> 2 -> 3 -> 4 -> None + """ + if not head: + print("Empty list") + return + + values = linked_list_to_list(head) + print(" -> ".join(map(str, values)) + " -> None") + + +def get_linked_list_length(head: Optional[ListNode]) -> int: + """ + Calculate the length of a linked list. + + Args: + head: Head node of the linked list + + Returns: + Number of nodes in the linked list + + Example: + >>> head = list_to_linked_list([1, 2, 3, 4, 5]) + >>> get_linked_list_length(head) + 5 + """ + length = 0 + current = head + + while current: + length += 1 + current = current.next + + return length + + +def get_node_at_index(head: Optional[ListNode], index: int) -> Optional[ListNode]: + """ + Get the node at a specific index in the linked list. + + Args: + head: Head node of the linked list + index: Zero-based index of the node to retrieve + + Returns: + Node at the specified index, or None if index is out of bounds + + Example: + >>> head = list_to_linked_list([1, 2, 3, 4, 5]) + >>> node = get_node_at_index(head, 2) + >>> node.val + 3 + """ + current = head + current_index = 0 + + while current and current_index < index: + current = current.next + current_index += 1 + + return current diff --git a/helpers/tree_utils.py b/helpers/tree_utils.py new file mode 100644 index 0000000..de33ac7 --- /dev/null +++ b/helpers/tree_utils.py @@ -0,0 +1,200 @@ +""" +Utility functions for working with binary trees. +""" + +from typing import Optional, List +from collections import deque +from .data_structures import TreeNode + + +def list_to_tree(values: List[Optional[int]]) -> Optional[TreeNode]: + """ + Convert a list to a binary tree (level-order representation). + + This matches LeetCode's format where None represents null nodes. + + Args: + values: List of values in level-order, with None for null nodes + + Returns: + Root node of the created binary tree, or None if input is empty + + Example: + >>> tree = list_to_tree([1, 2, 3, 4, 5, None, 7]) + >>> # Creates: + >>> 1 + >>> / \\ + >>> 2 3 + >>> / \\ \\ + >>> 4 5 7 + """ + if not values or values[0] is None: + return None + + root = TreeNode(values[0]) + queue = deque([root]) + i = 1 + + while queue and i < len(values): + node = queue.popleft() + + # Process left child + if i < len(values) and values[i] is not None: + node.left = TreeNode(values[i]) + queue.append(node.left) + i += 1 + + # Process right child + if i < len(values) and values[i] is not None: + node.right = TreeNode(values[i]) + queue.append(node.right) + i += 1 + + return root + + +def tree_to_list(root: Optional[TreeNode]) -> List[Optional[int]]: + """ + Convert a binary tree to a list (level-order representation). + + This matches LeetCode's format where None represents null nodes. + Trailing None values are removed. + + Args: + root: Root node of the binary tree + + Returns: + List of values in level-order, with None for null nodes + + Example: + >>> tree = TreeNode(1) + >>> tree.left = TreeNode(2) + >>> tree.right = TreeNode(3) + >>> tree_to_list(tree) + [1, 2, 3] + """ + if not root: + return [] + + result = [] + queue = deque([root]) + + while queue: + node = queue.popleft() + + if node is None: + result.append(None) + else: + result.append(node.val) + queue.append(node.left) + queue.append(node.right) + + # Remove trailing None values + while result and result[-1] is None: + result.pop() + + return result + + +def visualize_tree(root: Optional[TreeNode], level: int = 0, prefix: str = "Root: ") -> str: + """ + Create a visual string representation of a binary tree. + + Args: + root: Root node of the binary tree + level: Current depth level (used for recursion, default 0) + prefix: Prefix string for the current node (default "Root: ") + + Returns: + String representation of the tree structure + + Example: + >>> tree = list_to_tree([1, 2, 3, 4, 5]) + >>> print(visualize_tree(tree)) + Root: 1 + ├─ L: 2 + │ ├─ L: 4 + │ └─ R: 5 + └─ R: 3 + """ + if not root: + return "" + + lines = [] + lines.append(prefix + str(root.val)) + + if root.left or root.right: + if root.left: + extension = "│ " if root.right else " " + lines.append(visualize_tree(root.left, level + 1, + ("│ " * level) + "├─ L: ").rstrip()) + + if root.right: + lines.append(visualize_tree(root.right, level + 1, + ("│ " * level) + "└─ R: ").rstrip()) + + return "\n".join(lines) + + +def print_tree(root: Optional[TreeNode]) -> None: + """ + Print a visual representation of a binary tree. + + Args: + root: Root node of the binary tree + + Example: + >>> tree = list_to_tree([1, 2, 3, 4, 5]) + >>> print_tree(tree) + Root: 1 + ├─ L: 2 + │ ├─ L: 4 + │ └─ R: 5 + └─ R: 3 + """ + if not root: + print("Empty tree") + else: + print(visualize_tree(root)) + + +def get_tree_height(root: Optional[TreeNode]) -> int: + """ + Calculate the height of a binary tree. + + Args: + root: Root node of the binary tree + + Returns: + Height of the tree (number of edges on longest path from root to leaf) + + Example: + >>> tree = list_to_tree([1, 2, 3, 4, 5]) + >>> get_tree_height(tree) + 2 + """ + if not root: + return -1 + + return 1 + max(get_tree_height(root.left), get_tree_height(root.right)) + + +def count_nodes(root: Optional[TreeNode]) -> int: + """ + Count the total number of nodes in a binary tree. + + Args: + root: Root node of the binary tree + + Returns: + Total number of nodes in the tree + + Example: + >>> tree = list_to_tree([1, 2, 3, 4, 5]) + >>> count_nodes(tree) + 5 + """ + if not root: + return 0 + + return 1 + count_nodes(root.left) + count_nodes(root.right) From ab8cc890f44bcc421b7e0aca2d7e80f644303e1b Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Wed, 5 Nov 2025 20:26:52 +0000 Subject: [PATCH 518/573] Fix tree visualization and test all helper functions Co-authored-by: jeremymanning <9030494+jeremymanning@users.noreply.github.com> --- helpers/tree_utils.py | 42 ++++++++++++++++++++++++++++++------------ 1 file changed, 30 insertions(+), 12 deletions(-) diff --git a/helpers/tree_utils.py b/helpers/tree_utils.py index de33ac7..965b538 100644 --- a/helpers/tree_utils.py +++ b/helpers/tree_utils.py @@ -96,14 +96,15 @@ def tree_to_list(root: Optional[TreeNode]) -> List[Optional[int]]: return result -def visualize_tree(root: Optional[TreeNode], level: int = 0, prefix: str = "Root: ") -> str: +def visualize_tree(root: Optional[TreeNode], prefix: str = "", is_tail: bool = True, is_root: bool = True) -> str: """ Create a visual string representation of a binary tree. Args: root: Root node of the binary tree - level: Current depth level (used for recursion, default 0) - prefix: Prefix string for the current node (default "Root: ") + prefix: Prefix string for the current node (used internally) + is_tail: Whether this is the last child (used internally) + is_root: Whether this is the root node (default True) Returns: String representation of the tree structure @@ -121,17 +122,34 @@ def visualize_tree(root: Optional[TreeNode], level: int = 0, prefix: str = "Root return "" lines = [] - lines.append(prefix + str(root.val)) - if root.left or root.right: - if root.left: - extension = "│ " if root.right else " " - lines.append(visualize_tree(root.left, level + 1, - ("│ " * level) + "├─ L: ").rstrip()) + # Root node or child node label + if is_root: + lines.append("Root: " + str(root.val)) + new_prefix = "" + else: + lines.append(prefix + str(root.val)) + new_prefix = prefix + (" " if is_tail else "│ ") + + # Process children + children = [] + if root.left: + children.append(('L', root.left)) + if root.right: + children.append(('R', root.right)) + + for i, (label, child) in enumerate(children): + is_last = (i == len(children) - 1) + connector = "└─ " if is_last else "├─ " + child_lines = visualize_tree(child, new_prefix, is_last, False) - if root.right: - lines.append(visualize_tree(root.right, level + 1, - ("│ " * level) + "└─ R: ").rstrip()) + if child_lines: + # Add the label to the first line + first_line = new_prefix + connector + label + ": " + str(child.val) + remaining_lines = child_lines.split('\n')[1:] if '\n' in child_lines else [] + + lines.append(first_line) + lines.extend(remaining_lines) return "\n".join(lines) From ba56afb1f5984c638d70e3e59347184af5a03faa Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 6 Nov 2025 00:19:30 +0000 Subject: [PATCH 519/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/3607/gpt5-mini.md | 110 +++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 problems/3607/gpt5-mini.md diff --git a/problems/3607/gpt5-mini.md b/problems/3607/gpt5-mini.md new file mode 100644 index 0000000..24ac63f --- /dev/null +++ b/problems/3607/gpt5-mini.md @@ -0,0 +1,110 @@ +# [Problem 3607: Power Grid Maintenance](https://leetcode.com/problems/power-grid-maintenance/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We have c stations and static undirected connections which partition the stations into connected components (power grids). Initially every station is online. Queries are two kinds: +- [1, x]: ask which operational station will resolve the check for x. If x is online return x; otherwise return the smallest id online station in x's component (or -1 if none). +- [2, x]: mark x offline. + +Observations: +- The connectivity (components) never changes — taking nodes offline doesn't change component membership. +- So we can compute components once (DSU / union-find). +- For each component we need to maintain the set of currently-online station ids with fast removal and fast retrieval of the minimum id. +- Operations are only deletions (mark offline) and queries for min element. A min-heap per component with lazy deletions (keep popping offline tops) looks simple and efficient. Alternatively a balanced BST (sorted set) per component would work but Python doesn't have one built-in. + +So plan: build DSU, create a heap (min-heap) of members for each component, maintain an online boolean array. For a type-1 query: if x is online return x; otherwise find its component, lazily pop from that component's heap until top is online (or empty). Return top or -1. For a type-2 query: mark x offline (idempotent). + +## Refining the problem, round 2 thoughts +Edge cases and details: +- There may be repeated [2, x] operations; marking offline twice should be safe (we'll check online flag before setting, but setting to False again is harmless). +- Heaps initially contain every member; lazy popping ensures each node is popped at most once across all queries, so overall pop complexity is O(c log c). +- Queries involve DSU finds; with path compression and union by rank, find is effectively almost O(1) amortized (inverse-Ackermann). +- Space: heaps total hold c items initially; online boolean array size c+1. + +Complexity: +- Building DSU from connections: O(n * α(c)). +- Building heaps: O(c) pushes, total O(c log c) to heapify incrementally. +- Each query: find + potentially popping. Each item popped at most once so overall pop cost O(c log c); each query also does a constant number of heap/lookups. So total time O((c + n + q) log c) worst-case dominated by heap operations (more precisely O((c + number_of_pops) log c) and pops ≤ c). +- Space O(c + n) for DSU and heaps. + +This approach is simple and should pass bounds (c ≤ 1e5, queries ≤ 2e5). + +## Attempted solution(s) +```python +import heapq +from typing import List + +class DSU: + def __init__(self, n): + self.parent = list(range(n+1)) + self.rank = [0]*(n+1) + def find(self, x): + while self.parent[x] != x: + self.parent[x] = self.parent[self.parent[x]] + x = self.parent[x] + return x + def union(self, a, b): + ra = self.find(a) + rb = self.find(b) + if ra == rb: + return + if self.rank[ra] < self.rank[rb]: + self.parent[ra] = rb + elif self.rank[rb] < self.rank[ra]: + self.parent[rb] = ra + else: + self.parent[rb] = ra + self.rank[ra] += 1 + +class Solution: + def powerGridMaintenance(self, c: int, connections: List[List[int]], queries: List[List[int]]) -> List[int]: + dsu = DSU(c) + for u, v in connections: + dsu.union(u, v) + # Build a heap for each component representative + heaps = [None] * (c + 1) # heaps[rep] is a min-heap of node ids for that component + for node in range(1, c+1): + rep = dsu.find(node) + if heaps[rep] is None: + heaps[rep] = [] + heapq.heappush(heaps[rep], node) + online = [True] * (c + 1) # online[0] unused + + ans = [] + for typ, x in queries: + if typ == 1: + if online[x]: + ans.append(x) + else: + rep = dsu.find(x) + heap = heaps[rep] + # If there is no heap (shouldn't happen since every node was added), handle gracefully + if heap is None: + ans.append(-1) + continue + # lazy remove offline nodes + while heap and not online[heap[0]]: + heapq.heappop(heap) + if heap: + ans.append(heap[0]) + else: + ans.append(-1) + else: # typ == 2 + # mark offline (idempotent) + if online[x]: + online[x] = False + return ans + +# The LeetCode entry point expects the method name; adapt if needed. +# Example usage: +# sol = Solution() +# print(sol.powerGridMaintenance(5, [[1,2],[2,3],[3,4],[4,5]], [[1,3],[2,1],[1,1],[2,2],[1,2]])) +``` + +- Notes about the solution approach: + - Use DSU (union-find) to compute connected components once. + - Maintain a min-heap per component containing all node ids initially. Because nodes are only ever removed (marked offline), lazy deletion on the heap (pop until the top is online) is efficient: each id is popped at most once overall. + - For a [1, x] query, if x is online return x. Otherwise find component representative and retrieve the heap's current minimum after lazy cleanup; return -1 if heap becomes empty. + - For a [2, x] query, mark x offline. No immediate heap modification is necessary. +- Complexity: + - Time: Building DSU O(n α(c)). Building heaps O(c log c) (pushes). Each node popped at most once across all queries -> total pop cost O(c log c). Each query performs O(α(c)) find plus occasional heap pops. So overall roughly O((c + n + q) log c) worst-case. + - Space: O(c + n) for DSU structures and heaps (heaps store each node once). \ No newline at end of file From 1d616bc2535e3a895edafaf045a23a998c3b99fe Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 6 Nov 2025 00:34:57 +0000 Subject: [PATCH 520/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 58cd4b6..9c0ee75 100644 --- a/README.md +++ b/README.md @@ -512,6 +512,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 3, 2025 | [1578](https://leetcode.com/problems/minimum-time-to-make-rope-colorful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1578) | 🟡 Medium | | November 4, 2025 | [3318](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3318) | 🟢 Easy | | November 5, 2025 | [3321](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3321) | 🔴 Hard | +| November 6, 2025 | [3607](https://leetcode.com/problems/power-grid-maintenance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3607) | 🟡 Medium | # Join our discussion! From c0d326f43141147b587d339d5f8dff0e0f792021 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 6 Nov 2025 13:00:09 +0000 Subject: [PATCH 521/573] Implement collapsible month sections for problem table (Issue #31) - Reorganize README table using HTML
tags grouped by month - Keep only the most recent month (November 2025) expanded by default - Update update_readme.py to automatically maintain collapsible format - Add migrate_readme_format.py for one-time migration to new format - Format month headers as "Problems from [Month], [Year]" This makes the growing table more manageable by organizing 490+ problems across 17 months into collapsible sections. --- README.md | 1059 +++++++++++++++++++++----------------- migrate_readme_format.py | 122 +++++ update_readme.py | 88 +++- 3 files changed, 799 insertions(+), 470 deletions(-) create mode 100644 migrate_readme_format.py diff --git a/README.md b/README.md index 9c0ee75..853b05b 100644 --- a/README.md +++ b/README.md @@ -17,465 +17,25 @@ This means you'll always find an AI-generated solution to compare with or learn # Problems we've attempted so far: +
+Problems from November, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| November 1, 2025 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | +| November 2, 2025 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | +| November 3, 2025 | [1578](https://leetcode.com/problems/minimum-time-to-make-rope-colorful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1578) | 🟡 Medium | +| November 4, 2025 | [3318](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3318) | 🟢 Easy | +| November 5, 2025 | [3321](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3321) | 🔴 Hard | +| November 6, 2025 | [3607](https://leetcode.com/problems/power-grid-maintenance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3607) | 🟡 Medium | + +
+ +
+Problems from October, 2025 + | 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | |--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| -| July 1, 2024 | [1550](https://leetcode.com/problems/three-consecutive-odds/description/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1550) | 🟢 Easy | -| July 2, 2024 | [350](https://leetcode.com/problems/intersection-of-two-arrays-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/350) | 🟢 Easy | -| July 3, 2024 | [1509](https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1509) | 🟡 Medium | -| July 4, 2024 | [2181](https://leetcode.com/problems/merge-nodes-in-between-zeros/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2181) | 🟡 Medium | -| July 5, 2024 | [2058](https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2058) | 🟡 Medium | -| July 6, 2024 | [2582](https://leetcode.com/problems/pass-the-pillow/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2582) | 🟢 Easy | -| July 7, 2024 | [1518](https://leetcode.com/problems/water-bottles/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1518) | 🟢 Easy | -| July 8, 2024 | [1823](https://leetcode.com/problems/find-the-winner-of-the-circular-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1823) | 🟡 Medium | -| July 9, 2024 | [1701](https://leetcode.com/problems/average-waiting-time/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1701) | 🟡 Medium | -| July 10, 2024 | [1598](https://leetcode.com/problems/crawler-log-folder/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1598) | 🟢 Easy | -| July 11, 2024 | [1190](https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1190) | 🟡 Medium | -| July 12, 2024 | [1717](https://leetcode.com/problems/maximum-score-from-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1717) | 🟡 Medium | -| July 13, 2024 | [2751](https://leetcode.com/problems/robot-collisions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2751) | 🔴 Hard | -| July 14, 2024 | [726](https://leetcode.com/problems/number-of-atoms/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/726) | 🔴 Hard | -| July 15, 2024 | [2196](https://leetcode.com/problems/create-binary-tree-from-descriptions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2196) | 🟡 Medium | -| July 16, 2024 | [2096](https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2096) | 🟡 Medium | -| July 17, 2024 | [1110](https://leetcode.com/problems/delete-nodes-and-return-forest/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1110) | 🟡 Medium | -| July 18, 2024 | [1530](https://leetcode.com/problems/number-of-good-leaf-nodes-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1530) | 🟡 Medium | -| July 19, 2024 | [1380](https://leetcode.com/problems/lucky-numbers-in-a-matrix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1380) | 🟢 Easy | -| July 20, 2024 | [1605](https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1605) | 🟡 Medium | -| July 21, 2024 | [2392](https://leetcode.com/problems/build-a-matrix-with-conditions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2392) | 🔴 Hard | -| July 22, 2024 | [2418](https://leetcode.com/problems/sort-the-people/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2418) | 🟢 Easy | -| July 23, 2024 | [1636](https://leetcode.com/problems/sort-array-by-increasing-frequency/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1636) | 🟢 Easy | -| July 24, 2024 | [2191](https://leetcode.com/problems/sort-the-jumbled-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2191) | 🟡 Medium | -| July 25, 2024 | [912](https://leetcode.com/problems/sort-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/912) | 🟡 Medium | -| July 26, 2024 | [1334](https://leetcode.com/problems/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1334) | 🟡 Medium | -| July 27, 2024 | [2976](https://leetcode.com/problems/minimum-cost-to-convert-string-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2976) | 🟡 Medium | -| July 28, 2024 | [2045](https://leetcode.com/problems/second-minimum-time-to-reach-destination/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2045) | 🔴 Hard | -| July 29, 2024 | [1395](https://leetcode.com/problems/count-number-of-teams/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1395) | 🟡 Medium | -| July 30, 2024 | [1653](https://leetcode.com/problems/minimum-deletions-to-make-string-balanced/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1653) | 🟡 Medium | -| July 31, 2024 | [1105](https://leetcode.com/problems/filling-bookcase-shelves/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1105) | 🟡 Medium | -| August 1, 2024 | [2678](https://leetcode.com/problems/number-of-senior-citizens/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2678) | 🟢 Easy | -| August 2, 2024 | [2134](https://leetcode.com/problems/minimum-swaps-to-group-all-1s-together-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2134) | 🟡 Medium | -| August 3, 2024 | [1460](https://leetcode.com/problems/make-two-arrays-equal-by-reversing-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1460) | 🟢 Easy | -| August 4, 2024 | [1508](https://leetcode.com/problems/range-sum-of-sorted-subarray-sums/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1508) | 🟡 Medium | -| August 5, 2024 | [2053](https://leetcode.com/problems/kth-distinct-string-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2053) | 🟢 Easy | -| August 6, 2024 | [3016](https://leetcode.com/problems/minimum-number-of-pushes-to-type-word-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3016) | 🟡 Medium | -| August 7, 2024 | [273](https://leetcode.com/problems/integer-to-english-words/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/273) | 🔴 Hard | -| August 8, 2024 | [885](https://leetcode.com/problems/spiral-matrix-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/885) | 🟡 Medium | -| August 9, 2024 | [840](https://leetcode.com/problems/magic-squares-in-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/840) | 🟡 Medium | -| August 10, 2024 | [959](https://leetcode.com/problems/regions-cut-by-slashes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/959) | 🟡 Medium | -| August 11, 2024 | [1568](https://leetcode.com/problems/minimum-number-of-days-to-disconnect-island/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1568) | 🔴 Hard | -| August 12, 2024 | [703](https://leetcode.com/problems/kth-largest-element-in-a-stream/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/703) | 🟢 Easy | -| August 13, 2024 | [40](https://leetcode.com/problems/combination-sum-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/40) | 🟡 Medium | -| August 14, 2024 | [719](https://leetcode.com/problems/find-k-th-smallest-pair-distance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/719) | 🔴 Hard | -| August 15, 2024 | [860](https://leetcode.com/problems/lemonade-change/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/860) | 🟢 Easy | -| August 16, 2024 | [624](https://leetcode.com/problems/maximum-distance-in-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/624) | 🟡 Medium | -| August 17, 2024 | [1937](https://leetcode.com/problems/maximum-number-of-points-with-cost/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1937) | 🟡 Medium | -| August 18, 2024 | [264](https://leetcode.com/problems/ugly-number-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/264) | 🟡 Medium | -| August 19, 2024 | [650](https://leetcode.com/problems/2-keys-keyboard/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/650) | 🟡 Medium | -| August 20, 2024 | [1140](https://leetcode.com/problems/stone-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1140) | 🟡 Medium | -| August 21, 2024 | [664](https://leetcode.com/problems/strange-printer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/664) | 🔴 Hard | -| August 22, 2024 | [476](https://leetcode.com/problems/number-complement/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/476) | 🟢 Easy | -| August 23, 2024 | [592](https://leetcode.com/problems/fraction-addition-and-subtraction/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/592) | 🟡 Medium | -| August 24, 2024 | [564](https://leetcode.com/problems/find-the-closest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/564) | 🔴 Hard | -| August 25, 2024 | [145](https://leetcode.com/problems/binary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/145) | 🟢 Easy | -| August 26, 2024 | [590](https://leetcode.com/problems/n-ary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/590) | 🟢 Easy | -| August 27, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | -| August 28, 2024 | [1905](https://leetcode.com/problems/count-sub-islands/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1905) | 🟡 Medium | -| August 29, 2024 | [947](https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/947) | 🟡 Medium | -| August 30, 2024 | [2699](https://leetcode.com/problems/modify-graph-edge-weights/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2699) | 🔴 Hard | -| August 31, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | -| September 1, 2024 | [2022](https://leetcode.com/problems/convert-1d-array-into-2d-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2022) | 🟢 Easy | -| September 2, 2024 | [1894](https://leetcode.com/problems/find-the-student-that-will-replace-the-chalk/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1894) | 🟡 Medium | -| September 3, 2024 | [1945](https://leetcode.com/problems/sum-of-digits-of-string-after-convert/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1945) | 🟢 Easy | -| September 4, 2024 | [874](https://leetcode.com/problems/walking-robot-simulation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/874) | 🟡 Medium | -| September 5, 2024 | [2028](https://leetcode.com/problems/find-missing-observations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2028) | 🟡 Medium | -| September 6, 2024 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | -| September 7, 2024 | [1367](https://leetcode.com/problems/linked-list-in-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1367) | 🟡 Medium | -| September 8, 2024 | [725](https://leetcode.com/problems/split-linked-list-in-parts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/725) | 🟡 Medium | -| September 9, 2024 | [2326](https://leetcode.com/problems/spiral-matrix-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2326) | 🟡 Medium | -| September 10, 2024 | [2807](https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2807) | 🟡 Medium | -| September 11, 2024 | [2220](https://leetcode.com/problems/minimum-bit-flips-to-convert-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2220) | 🟢 Easy | -| September 12, 2024 | [1684](https://leetcode.com/problems/count-the-number-of-consistent-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1684) | 🟢 Easy | -| September 13, 2024 | [1310](https://leetcode.com/problems/xor-queries-of-a-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1310) | 🟡 Medium | -| September 14, 2024 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | -| September 15, 2024 | [1371](https://leetcode.com/problems/find-the-longest-substring-containing-vowels-in-even-counts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1371) | 🟡 Medium | -| September 16, 2024 | [539](https://leetcode.com/problems/minimum-time-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/539) | 🟡 Medium | -| September 17, 2024 | [884](https://leetcode.com/problems/uncommon-words-from-two-sentences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/884) | 🟢 Easy | -| September 18, 2024 | [179](https://leetcode.com/problems/largest-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/179) | 🟡 Medium | -| September 19, 2024 | [241](https://leetcode.com/problems/different-ways-to-add-parentheses/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/241) | 🟡 Medium | -| September 20, 2024 | [214](https://leetcode.com/problems/shortest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/214) | 🔴 Hard | -| September 21, 2024 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | -| September 22, 2024 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | -| September 23, 2024 | [2707](https://leetcode.com/problems/extra-characters-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2707) | 🟡 Medium | -| September 24, 2024 | [3043](https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3043) | 🟡 Medium | -| September 25, 2024 | [2416](https://leetcode.com/problems/sum-of-prefix-scores-of-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2416) | 🔴 Hard | -| September 26, 2024 | [729](https://leetcode.com/problems/my-calendar-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/729) | 🟡 Medium | -| September 27, 2024 | [731](https://leetcode.com/problems/my-calendar-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/731) | 🟡 Medium | -| September 28, 2024 | [641](https://leetcode.com/problems/design-circular-deque/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/641) | 🟡 Medium | -| September 29, 2024 | [432](https://leetcode.com/problems/all-oone-data-structure/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/432) | 🔴 Hard | -| September 30, 2024 | [1381](https://leetcode.com/problems/design-a-stack-with-increment-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1381) | 🟡 Medium | -| October 1, 2024 | [1497](https://leetcode.com/problems/check-if-array-pairs-are-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1497) | 🟡 Medium | -| October 2, 2024 | [1331](https://leetcode.com/problems/rank-transform-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1331) | 🟢 Easy | -| October 3, 2024 | [1590](https://leetcode.com/problems/make-sum-divisible-by-p/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1590) | 🟡 Medium | -| October 4, 2024 | [2491](https://leetcode.com/problems/divide-players-into-teams-of-equal-skill/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2491) | 🟡 Medium | -| October 5, 2024 | [567](https://leetcode.com/problems/permutation-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/567) | 🟡 Medium | -| October 6, 2024 | [1813](https://leetcode.com/problems/sentence-similarity-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1813) | 🟡 Medium | -| October 7, 2024 | [2696](https://leetcode.com/problems/minimum-string-length-after-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2696) | 🟢 Easy | -| October 8, 2024 | [1963](https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-string-balanced/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1963) | 🟡 Medium | -| October 9, 2024 | [921](https://leetcode.com/problems/minimum-add-to-make-parentheses-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/921) | 🟡 Medium | -| October 10, 2024 | [962](https://leetcode.com/problems/maximum-width-ramp/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/962) | 🟡 Medium | -| October 11, 2024 | [1942](https://leetcode.com/problems/the-number-of-the-smallest-unoccupied-chair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1942) | 🟡 Medium | -| October 12, 2024 | [2406](https://leetcode.com/problems/divide-intervals-into-minimum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2406) | 🟡 Medium | -| October 13, 2024 | [632](https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/632) | 🔴 Hard | -| October 14, 2024 | [2530](https://leetcode.com/problems/maximal-score-after-applying-k-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2530) | 🟡 Medium | -| October 15, 2024 | [2938](https://leetcode.com/problems/separate-black-and-white-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2938) | 🟡 Medium | -| October 16, 2024 | [1405](https://leetcode.com/problems/longest-happy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1405) | 🟡 Medium | -| October 17, 2024 | [670](https://leetcode.com/problems/maximum-swap/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/670) | 🟡 Medium | -| October 18, 2024 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | -| October 19, 2024 | [1545](https://leetcode.com/problems/find-kth-bit-in-nth-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1545) | 🟡 Medium | -| October 20, 2024 | [1106](https://leetcode.com/problems/parsing-a-boolean-expression/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1106) | 🔴 Hard | -| October 21, 2024 | [1593](https://leetcode.com/problems/split-a-string-into-the-max-number-of-unique-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1593) | 🟡 Medium | -| October 22, 2024 | [2583](https://leetcode.com/problems/kth-largest-sum-in-a-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2583) | 🟡 Medium | -| October 23, 2024 | [2641](https://leetcode.com/problems/cousins-in-binary-tree-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2641) | 🟡 Medium | -| October 24, 2024 | [951](https://leetcode.com/problems/flip-equivalent-binary-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/951) | 🟡 Medium | -| October 25, 2024 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | -| October 26, 2024 | [2458](https://leetcode.com/problems/height-of-binary-tree-after-subtree-removal-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2458) | 🔴 Hard | -| October 27, 2024 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | -| October 28, 2024 | [2501](https://leetcode.com/problems/longest-square-streak-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2501) | 🟡 Medium | -| October 29, 2024 | [2684](https://leetcode.com/problems/maximum-number-of-moves-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2684) | 🟡 Medium | -| October 30, 2024 | [1671](https://leetcode.com/problems/minimum-number-of-removals-to-make-mountain-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1671) | 🔴 Hard | -| October 31, 2024 | [2463](https://leetcode.com/problems/minimum-total-distance-traveled/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2463) | 🔴 Hard | -| November 1, 2024 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | -| November 2, 2024 | [2490](https://leetcode.com/problems/circular-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2490) | 🟢 Easy | -| November 3, 2024 | [796](https://leetcode.com/problems/rotate-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/796) | 🟢 Easy | -| November 4, 2024 | [3163](https://leetcode.com/problems/string-compression-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3163) | 🟡 Medium | -| November 5, 2024 | [2914](https://leetcode.com/problems/minimum-number-of-changes-to-make-binary-string-beautiful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2914) | 🟡 Medium | -| November 6, 2024 | [3011](https://leetcode.com/problems/find-if-array-can-be-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3011) | 🟡 Medium | -| November 7, 2024 | [2275](https://leetcode.com/problems/largest-combination-with-bitwise-and-greater-than-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2275) | 🟡 Medium | -| November 8, 2024 | [1829](https://leetcode.com/problems/maximum-xor-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1829) | 🟡 Medium | -| November 9, 2024 | [3133](https://leetcode.com/problems/minimum-array-end/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3133) | 🟡 Medium | -| November 10, 2024 | [3097](https://leetcode.com/problems/shortest-subarray-with-or-at-least-k-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3097) | 🟡 Medium | -| November 11, 2024 | [2601](https://leetcode.com/problems/prime-subtraction-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2601) | 🟡 Medium | -| November 12, 2024 | [2070](https://leetcode.com/problems/most-beautiful-item-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2070) | 🟡 Medium | -| November 13, 2024 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | -| November 14, 2024 | [2064](https://leetcode.com/problems/minimized-maximum-of-products-distributed-to-any-store/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2064) | 🟡 Medium | -| November 15, 2024 | [1574](https://leetcode.com/problems/shortest-subarray-to-be-removed-to-make-array-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1574) | 🟡 Medium | -| November 16, 2024 | [3254](https://leetcode.com/problems/find-the-power-of-k-size-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3254) | 🟡 Medium | -| November 17, 2024 | [862](https://leetcode.com/problems/shortest-subarray-with-sum-at-least-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/862) | 🔴 Hard | -| November 18, 2024 | [1652](https://leetcode.com/problems/defuse-the-bomb/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1652) | 🟢 Easy | -| November 19, 2024 | [2461](https://leetcode.com/problems/maximum-sum-of-distinct-subarrays-with-length-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2461) | 🟡 Medium | -| November 20, 2024 | [2516](https://leetcode.com/problems/take-k-of-each-character-from-left-and-right/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2516) | 🟡 Medium | -| November 21, 2024 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | -| November 22, 2024 | [1072](https://leetcode.com/problems/flip-columns-for-maximum-number-of-equal-rows/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1072) | 🟡 Medium | -| November 23, 2024 | [1861](https://leetcode.com/problems/rotating-the-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1861) | 🟡 Medium | -| November 24, 2024 | [1975](https://leetcode.com/problems/maximum-matrix-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1975) | 🟡 Medium | -| November 25, 2024 | [773](https://leetcode.com/problems/sliding-puzzle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/773) | 🔴 Hard | -| November 26, 2024 | [2924](https://leetcode.com/problems/find-champion-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2924) | 🟡 Medium | -| November 27, 2024 | [3243](https://leetcode.com/problems/shortest-distance-after-road-addition-queries-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3243) | 🟡 Medium | -| November 28, 2024 | [2290](https://leetcode.com/problems/minimum-obstacle-removal-to-reach-corner/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2290) | 🔴 Hard | -| November 29, 2024 | [2577](https://leetcode.com/problems/minimum-time-to-visit-a-cell-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2577) | 🔴 Hard | -| November 30, 2024 | [2097](https://leetcode.com/problems/valid-arrangement-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2097) | 🔴 Hard | -| December 1, 2024 | [1346](https://leetcode.com/problems/check-if-n-and-its-double-exist/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1346) | 🟢 Easy | -| December 2, 2024 | [1455](https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1455) | 🟢 Easy | -| December 3, 2024 | [2109](https://leetcode.com/problems/adding-spaces-to-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2109) | 🟡 Medium | -| December 4, 2024 | [2825](https://leetcode.com/problems/make-string-a-subsequence-using-cyclic-increments/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2825) | 🟡 Medium | -| December 5, 2024 | [2337](https://leetcode.com/problems/move-pieces-to-obtain-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2337) | 🟡 Medium | -| December 6, 2024 | [2554](https://leetcode.com/problems/maximum-number-of-integers-to-choose-from-a-range-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2554) | 🟡 Medium | -| December 7, 2024 | [1760](https://leetcode.com/problems/minimum-limit-of-balls-in-a-bag/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1760) | 🟡 Medium | -| December 8, 2024 | [2054](https://leetcode.com/problems/two-best-non-overlapping-events/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2054) | 🟡 Medium | -| December 9, 2024 | [3152](https://leetcode.com/problems/special-array-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3152) | 🟡 Medium | -| December 10, 2024 | [2981](https://leetcode.com/problems/find-longest-special-substring-that-occurs-thrice-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2981) | 🟡 Medium | -| December 11, 2024 | [2779](https://leetcode.com/problems/maximum-beauty-of-an-array-after-applying-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2779) | 🟡 Medium | -| December 12, 2024 | [2558](https://leetcode.com/problems/take-gifts-from-the-richest-pile/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2558) | 🟢 Easy | -| December 13, 2024 | [2593](https://leetcode.com/problems/find-score-of-an-array-after-marking-all-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2593) | 🟡 Medium | -| December 14, 2024 | [2762](https://leetcode.com/problems/continuous-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2762) | 🟡 Medium | -| December 15, 2024 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | -| December 16, 2024 | [3264](https://leetcode.com/problems/final-array-state-after-k-multiplication-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3264) | 🟢 Easy | -| December 17, 2024 | [2182](https://leetcode.com/problems/construct-string-with-repeat-limit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2182) | 🟡 Medium | -| December 18, 2024 | [1475](https://leetcode.com/problems/final-prices-with-a-special-discount-in-a-shop/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1475) | 🟢 Easy | -| December 19, 2024 | [769](https://leetcode.com/problems/max-chunks-to-make-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/769) | 🟡 Medium | -| December 20, 2024 | [2415](https://leetcode.com/problems/reverse-odd-levels-of-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2415) | 🟡 Medium | -| December 21, 2024 | [2872](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2872) | 🔴 Hard | -| December 22, 2024 | [2940](https://leetcode.com/problems/find-building-where-alice-and-bob-can-meet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2940) | 🔴 Hard | -| December 23, 2024 | [2471](https://leetcode.com/problems/minimum-number-of-operations-to-sort-a-binary-tree-by-level/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2471) | 🟡 Medium | -| December 24, 2024 | [3203](https://leetcode.com/problems/find-minimum-diameter-after-merging-two-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3203) | 🔴 Hard | -| December 25, 2024 | [515](https://leetcode.com/problems/find-largest-value-in-each-tree-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/515) | 🟡 Medium | -| December 26, 2024 | [494](https://leetcode.com/problems/target-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/494) | 🟡 Medium | -| December 27, 2024 | [1014](https://leetcode.com/problems/best-sightseeing-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1014) | 🟡 Medium | -| December 28, 2024 | [689](https://leetcode.com/problems/maximum-sum-of-3-non-overlapping-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/689) | 🔴 Hard | -| December 29, 2024 | [1639](https://leetcode.com/problems/number-of-ways-to-form-a-target-string-given-a-dictionary/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1639) | 🔴 Hard | -| December 30, 2024 | [2466](https://leetcode.com/problems/count-ways-to-build-good-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2466) | 🟡 Medium | -| December 31, 2024 | [983](https://leetcode.com/problems/minimum-cost-for-tickets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/983) | 🟡 Medium | -| January 1, 2025 | [1422](https://leetcode.com/problems/maximum-score-after-splitting-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1422) | 🟢 Easy | -| January 2, 2025 | [2559](https://leetcode.com/problems/count-vowel-strings-in-ranges/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2559) | 🟡 Medium | -| January 3, 2025 | [2270](https://leetcode.com/problems/number-of-ways-to-split-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2270) | 🟡 Medium | -| January 4, 2025 | [1930](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1930) | 🟡 Medium | -| January 5, 2025 | [2381](https://leetcode.com/problems/shifting-letters-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2381) | 🟡 Medium | -| January 6, 2025 | [1769](https://leetcode.com/problems/minimum-number-of-operations-to-move-all-balls-to-each-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1769) | 🟡 Medium | -| January 7, 2025 | [1408](https://leetcode.com/problems/string-matching-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1408) | 🟢 Easy | -| January 8, 2025 | [3042](https://leetcode.com/problems/count-prefix-and-suffix-pairs-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3042) | 🟢 Easy | -| January 9, 2025 | [2185](https://leetcode.com/problems/counting-words-with-a-given-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2185) | 🟢 Easy | -| January 10, 2025 | [916](https://leetcode.com/problems/word-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/916) | 🟡 Medium | -| January 11, 2025 | [1400](https://leetcode.com/problems/construct-k-palindrome-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1400) | 🟡 Medium | -| January 12, 2025 | [2116](https://leetcode.com/problems/check-if-a-parentheses-string-can-be-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2116) | 🟡 Medium | -| January 13, 2025 | [3223](https://leetcode.com/problems/minimum-length-of-string-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3223) | 🟡 Medium | -| January 14, 2025 | [2657](https://leetcode.com/problems/find-the-prefix-common-array-of-two-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2657) | 🟡 Medium | -| January 15, 2025 | [2429](https://leetcode.com/problems/minimize-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2429) | 🟡 Medium | -| January 16, 2025 | [2425](https://leetcode.com/problems/bitwise-xor-of-all-pairings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2425) | 🟡 Medium | -| January 17, 2025 | [2683](https://leetcode.com/problems/neighboring-bitwise-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2683) | 🟡 Medium | -| January 18, 2025 | [1368](https://leetcode.com/problems/minimum-cost-to-make-at-least-one-valid-path-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1368) | 🔴 Hard | -| January 19, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | -| January 20, 2025 | [2661](https://leetcode.com/problems/first-completely-painted-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2661) | 🟡 Medium | -| January 21, 2025 | [2017](https://leetcode.com/problems/grid-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2017) | 🟡 Medium | -| January 22, 2025 | [1765](https://leetcode.com/problems/map-of-highest-peak/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1765) | 🟡 Medium | -| January 23, 2025 | [1267](https://leetcode.com/problems/count-servers-that-communicate/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1267) | 🟡 Medium | -| January 24, 2025 | [802](https://leetcode.com/problems/find-eventual-safe-states/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/802) | 🟡 Medium | -| January 25, 2025 | [2948](https://leetcode.com/problems/make-lexicographically-smallest-array-by-swapping-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2948) | 🟡 Medium | -| January 26, 2025 | [2127](https://leetcode.com/problems/maximum-employees-to-be-invited-to-a-meeting/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2127) | 🔴 Hard | -| January 27, 2025 | [1462](https://leetcode.com/problems/course-schedule-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1462) | 🟡 Medium | -| January 28, 2025 | [2658](https://leetcode.com/problems/maximum-number-of-fish-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2658) | 🟡 Medium | -| January 29, 2025 | [684](https://leetcode.com/problems/redundant-connection/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/684) | 🟡 Medium | -| January 30, 2025 | [2493](https://leetcode.com/problems/divide-nodes-into-the-maximum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2493) | 🔴 Hard | -| January 31, 2025 | [827](https://leetcode.com/problems/making-a-large-island/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/827) | 🔴 Hard | -| February 1, 2025 | [3151](https://leetcode.com/problems/special-array-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3151) | 🟢 Easy | -| February 2, 2025 | [1752](https://leetcode.com/problems/check-if-array-is-sorted-and-rotated/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1752) | 🟢 Easy | -| February 3, 2025 | [3105](https://leetcode.com/problems/longest-strictly-increasing-or-strictly-decreasing-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3105) | 🟢 Easy | -| February 4, 2025 | [1800](https://leetcode.com/problems/maximum-ascending-subarray-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1800) | 🟢 Easy | -| February 5, 2025 | [1790](https://leetcode.com/problems/check-if-one-string-swap-can-make-strings-equal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1790) | 🟢 Easy | -| February 6, 2025 | [1726](https://leetcode.com/problems/tuple-with-same-product/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1726) | 🟡 Medium | -| February 7, 2025 | [3160](https://leetcode.com/problems/find-the-number-of-distinct-colors-among-the-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3160) | 🟡 Medium | -| February 8, 2025 | [2349](https://leetcode.com/problems/design-a-number-container-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2349) | 🟡 Medium | -| February 9, 2025 | [2364](https://leetcode.com/problems/count-number-of-bad-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2364) | 🟡 Medium | -| February 10, 2025 | [3174](https://leetcode.com/problems/clear-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3174) | 🟢 Easy | -| February 11, 2025 | [1910](https://leetcode.com/problems/remove-all-occurrences-of-a-substring/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1910) | 🟡 Medium | -| February 12, 2025 | [2342](https://leetcode.com/problems/max-sum-of-a-pair-with-equal-sum-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2342) | 🟡 Medium | -| February 13, 2025 | [3066](https://leetcode.com/problems/minimum-operations-to-exceed-threshold-value-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3066) | 🟡 Medium | -| February 14, 2025 | [1352](https://leetcode.com/problems/product-of-the-last-k-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1352) | 🟡 Medium | -| February 15, 2025 | [2698](https://leetcode.com/problems/find-the-punishment-number-of-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2698) | 🟡 Medium | -| February 16, 2025 | [1718](https://leetcode.com/problems/construct-the-lexicographically-largest-valid-sequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1718) | 🟡 Medium | -| February 17, 2025 | [1079](https://leetcode.com/problems/letter-tile-possibilities/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1079) | 🟡 Medium | -| February 18, 2025 | [2375](https://leetcode.com/problems/construct-smallest-number-from-di-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2375) | 🟡 Medium | -| February 19, 2025 | [1415](https://leetcode.com/problems/the-k-th-lexicographical-string-of-all-happy-strings-of-length-n/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1415) | 🟡 Medium | -| February 20, 2025 | [1980](https://leetcode.com/problems/find-unique-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1980) | 🟡 Medium | -| February 21, 2025 | [1261](https://leetcode.com/problems/find-elements-in-a-contaminated-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1261) | 🟡 Medium | -| February 22, 2025 | [1028](https://leetcode.com/problems/recover-a-tree-from-preorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1028) | 🔴 Hard | -| February 23, 2025 | [889](https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/889) | 🟡 Medium | -| February 24, 2025 | [2467](https://leetcode.com/problems/most-profitable-path-in-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2467) | 🟡 Medium | -| February 25, 2025 | [1524](https://leetcode.com/problems/number-of-sub-arrays-with-odd-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1524) | 🟡 Medium | -| February 26, 2025 | [1749](https://leetcode.com/problems/maximum-absolute-sum-of-any-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1749) | 🟡 Medium | -| February 27, 2025 | [873](https://leetcode.com/problems/length-of-longest-fibonacci-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/873) | 🟡 Medium | -| February 28, 2025 | [1092](https://leetcode.com/problems/shortest-common-supersequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1092) | 🔴 Hard | -| March 1, 2025 | [2460](https://leetcode.com/problems/apply-operations-to-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2460) | 🟢 Easy | -| March 2, 2025 | [2570](https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2570) | 🟢 Easy | -| March 3, 2025 | [2161](https://leetcode.com/problems/partition-array-according-to-given-pivot/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2161) | 🟡 Medium | -| March 4, 2025 | [1780](https://leetcode.com/problems/check-if-number-is-a-sum-of-powers-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1780) | 🟡 Medium | -| March 5, 2025 | [2579](https://leetcode.com/problems/count-total-number-of-colored-cells/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2579) | 🟡 Medium | -| March 6, 2025 | [2965](https://leetcode.com/problems/find-missing-and-repeated-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2965) | 🟢 Easy | -| March 7, 2025 | [2523](https://leetcode.com/problems/closest-prime-numbers-in-range/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2523) | 🟡 Medium | -| March 8, 2025 | [2379](https://leetcode.com/problems/minimum-recolors-to-get-k-consecutive-black-blocks/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2379) | 🟢 Easy | -| March 9, 2025 | [3208](https://leetcode.com/problems/alternating-groups-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3208) | 🟡 Medium | -| March 10, 2025 | [3306](https://leetcode.com/problems/count-of-substrings-containing-every-vowel-and-k-consonants-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3306) | 🟡 Medium | -| March 11, 2025 | [1358](https://leetcode.com/problems/number-of-substrings-containing-all-three-characters/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1358) | 🟡 Medium | -| March 12, 2025 | [2529](https://leetcode.com/problems/maximum-count-of-positive-integer-and-negative-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2529) | 🟢 Easy | -| March 13, 2025 | [3356](https://leetcode.com/problems/zero-array-transformation-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3356) | 🟡 Medium | -| March 14, 2025 | [2226](https://leetcode.com/problems/maximum-candies-allocated-to-k-children/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2226) | 🟡 Medium | -| March 15, 2025 | [2560](https://leetcode.com/problems/house-robber-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2560) | 🟡 Medium | -| March 16, 2025 | [2594](https://leetcode.com/problems/minimum-time-to-repair-cars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2594) | 🟡 Medium | -| March 17, 2025 | [2206](https://leetcode.com/problems/divide-array-into-equal-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2206) | 🟢 Easy | -| March 18, 2025 | [2401](https://leetcode.com/problems/longest-nice-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2401) | 🟡 Medium | -| March 19, 2025 | [3191](https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3191) | 🟡 Medium | -| March 20, 2025 | [3108](https://leetcode.com/problems/minimum-cost-walk-in-weighted-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3108) | 🔴 Hard | -| March 21, 2025 | [2115](https://leetcode.com/problems/find-all-possible-recipes-from-given-supplies/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2115) | 🟡 Medium | -| March 22, 2025 | [2685](https://leetcode.com/problems/count-the-number-of-complete-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2685) | 🟡 Medium | -| March 23, 2025 | [1976](https://leetcode.com/problems/number-of-ways-to-arrive-at-destination/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1976) | 🟡 Medium | -| March 24, 2025 | [3169](https://leetcode.com/problems/count-days-without-meetings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3169) | 🟡 Medium | -| March 25, 2025 | [3394](https://leetcode.com/problems/check-if-grid-can-be-cut-into-sections/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3394) | 🟡 Medium | -| March 26, 2025 | [2033](https://leetcode.com/problems/minimum-operations-to-make-a-uni-value-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2033) | 🟡 Medium | -| March 27, 2025 | [2780](https://leetcode.com/problems/minimum-index-of-a-valid-split/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2780) | 🟡 Medium | -| March 28, 2025 | [2503](https://leetcode.com/problems/maximum-number-of-points-from-grid-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2503) | 🔴 Hard | -| March 29, 2025 | [2818](https://leetcode.com/problems/apply-operations-to-maximize-score/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2818) | 🔴 Hard | -| March 30, 2025 | [763](https://leetcode.com/problems/partition-labels/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/763) | 🟡 Medium | -| March 31, 2025 | [2551](https://leetcode.com/problems/put-marbles-in-bags/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2551) | 🔴 Hard | -| April 1, 2025 | [2140](https://leetcode.com/problems/solving-questions-with-brainpower/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2140) | 🟡 Medium | -| April 2, 2025 | [2873](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2873) | 🟢 Easy | -| April 3, 2025 | [2874](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2874) | 🟡 Medium | -| April 4, 2025 | [1123](https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1123) | 🟡 Medium | -| April 5, 2025 | [1863](https://leetcode.com/problems/sum-of-all-subset-xor-totals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1863) | 🟢 Easy | -| April 6, 2025 | [368](https://leetcode.com/problems/largest-divisible-subset/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/368) | 🟡 Medium | -| April 7, 2025 | [416](https://leetcode.com/problems/partition-equal-subset-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/416) | 🟡 Medium | -| April 8, 2025 | [3396](https://leetcode.com/problems/minimum-number-of-operations-to-make-elements-in-array-distinct/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3396) | 🟢 Easy | -| April 9, 2025 | [3375](https://leetcode.com/problems/minimum-operations-to-make-array-values-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3375) | 🟢 Easy | -| April 10, 2025 | [2999](https://leetcode.com/problems/count-the-number-of-powerful-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2999) | 🔴 Hard | -| April 11, 2025 | [2843](https://leetcode.com/problems/count-symmetric-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2843) | 🟢 Easy | -| April 12, 2025 | [3272](https://leetcode.com/problems/find-the-count-of-good-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3272) | 🔴 Hard | -| April 13, 2025 | [1922](https://leetcode.com/problems/count-good-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1922) | 🟡 Medium | -| April 14, 2025 | [1534](https://leetcode.com/problems/count-good-triplets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1534) | 🟢 Easy | -| April 15, 2025 | [2179](https://leetcode.com/problems/count-good-triplets-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2179) | 🔴 Hard | -| April 16, 2025 | [2537](https://leetcode.com/problems/count-the-number-of-good-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2537) | 🟡 Medium | -| April 17, 2025 | [2176](https://leetcode.com/problems/count-equal-and-divisible-pairs-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2176) | 🟢 Easy | -| April 18, 2025 | [38](https://leetcode.com/problems/count-and-say/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/38) | 🟡 Medium | -| April 19, 2025 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | -| April 20, 2025 | [781](https://leetcode.com/problems/rabbits-in-forest/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/781) | 🟡 Medium | -| April 21, 2025 | [2145](https://leetcode.com/problems/count-the-hidden-sequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2145) | 🟡 Medium | -| April 22, 2025 | [2338](https://leetcode.com/problems/count-the-number-of-ideal-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2338) | 🔴 Hard | -| April 23, 2025 | [1399](https://leetcode.com/problems/count-largest-group/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1399) | 🟢 Easy | -| April 24, 2025 | [2799](https://leetcode.com/problems/count-complete-subarrays-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2799) | 🟡 Medium | -| April 25, 2025 | [2845](https://leetcode.com/problems/count-of-interesting-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2845) | 🟡 Medium | -| April 26, 2025 | [2444](https://leetcode.com/problems/count-subarrays-with-fixed-bounds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2444) | 🔴 Hard | -| April 27, 2025 | [3392](https://leetcode.com/problems/count-subarrays-of-length-three-with-a-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3392) | 🟢 Easy | -| April 28, 2025 | [2302](https://leetcode.com/problems/count-subarrays-with-score-less-than-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2302) | 🔴 Hard | -| April 29, 2025 | [2962](https://leetcode.com/problems/count-subarrays-where-max-element-appears-at-least-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2962) | 🟡 Medium | -| April 30, 2025 | [1295](https://leetcode.com/problems/find-numbers-with-even-number-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1295) | 🟢 Easy | -| May 1, 2025 | [2071](https://leetcode.com/problems/maximum-number-of-tasks-you-can-assign/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2071) | 🔴 Hard | -| May 2, 2025 | [838](https://leetcode.com/problems/push-dominoes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/838) | 🟡 Medium | -| May 3, 2025 | [1007](https://leetcode.com/problems/minimum-domino-rotations-for-equal-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1007) | 🟡 Medium | -| May 4, 2025 | [1128](https://leetcode.com/problems/number-of-equivalent-domino-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1128) | 🟢 Easy | -| May 5, 2025 | [790](https://leetcode.com/problems/domino-and-tromino-tiling/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/790) | 🟡 Medium | -| May 6, 2025 | [1920](https://leetcode.com/problems/build-array-from-permutation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1920) | 🟢 Easy | -| May 7, 2025 | [3341](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3341) | 🟡 Medium | -| May 8, 2025 | [3342](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3342) | 🟡 Medium | -| May 9, 2025 | [3343](https://leetcode.com/problems/count-number-of-balanced-permutations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3343) | 🔴 Hard | -| May 10, 2025 | [2918](https://leetcode.com/problems/minimum-equal-sum-of-two-arrays-after-replacing-zeros/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2918) | 🟡 Medium | -| May 11, 2025 | [1550](https://leetcode.com/problems/three-consecutive-odds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1550) | 🟢 Easy | -| May 12, 2025 | [2094](https://leetcode.com/problems/finding-3-digit-even-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2094) | 🟢 Easy | -| May 13, 2025 | [3335](https://leetcode.com/problems/total-characters-in-string-after-transformations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3335) | 🟡 Medium | -| May 14, 2025 | [3337](https://leetcode.com/problems/total-characters-in-string-after-transformations-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3337) | 🔴 Hard | -| May 15, 2025 | [2900](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2900) | 🟢 Easy | -| May 16, 2025 | [2901](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2901) | 🟡 Medium | -| May 17, 2025 | [75](https://leetcode.com/problems/sort-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/75) | 🟡 Medium | -| May 18, 2025 | [1931](https://leetcode.com/problems/painting-a-grid-with-three-different-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1931) | 🔴 Hard | -| May 19, 2025 | [3024](https://leetcode.com/problems/type-of-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3024) | 🟢 Easy | -| May 20, 2025 | [3355](https://leetcode.com/problems/zero-array-transformation-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3355) | 🟡 Medium | -| May 21, 2025 | [73](https://leetcode.com/problems/set-matrix-zeroes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/73) | 🟡 Medium | -| May 22, 2025 | [3362](https://leetcode.com/problems/zero-array-transformation-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3362) | 🟡 Medium | -| May 23, 2025 | [3068](https://leetcode.com/problems/find-the-maximum-sum-of-node-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3068) | 🔴 Hard | -| May 24, 2025 | [2942](https://leetcode.com/problems/find-words-containing-character/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2942) | 🟢 Easy | -| May 25, 2025 | [2131](https://leetcode.com/problems/longest-palindrome-by-concatenating-two-letter-words/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2131) | 🟡 Medium | -| May 26, 2025 | [1857](https://leetcode.com/problems/largest-color-value-in-a-directed-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1857) | 🔴 Hard | -| May 27, 2025 | [2894](https://leetcode.com/problems/divisible-and-non-divisible-sums-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2894) | 🟢 Easy | -| May 28, 2025 | [3372](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3372) | 🟡 Medium | -| May 29, 2025 | [3373](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3373) | 🔴 Hard | -| May 30, 2025 | [2359](https://leetcode.com/problems/find-closest-node-to-given-two-nodes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2359) | 🟡 Medium | -| May 31, 2025 | [909](https://leetcode.com/problems/snakes-and-ladders/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/909) | 🟡 Medium | -| June 1, 2025 | [2929](https://leetcode.com/problems/distribute-candies-among-children-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2929) | 🟡 Medium | -| June 2, 2025 | [135](https://leetcode.com/problems/candy/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/135) | 🔴 Hard | -| June 3, 2025 | [1298](https://leetcode.com/problems/maximum-candies-you-can-get-from-boxes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1298) | 🔴 Hard | -| June 4, 2025 | [3403](https://leetcode.com/problems/find-the-lexicographically-largest-string-from-the-box-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3403) | 🟡 Medium | -| June 5, 2025 | [1061](https://leetcode.com/problems/lexicographically-smallest-equivalent-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1061) | 🟡 Medium | -| June 6, 2025 | [2434](https://leetcode.com/problems/using-a-robot-to-print-the-lexicographically-smallest-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2434) | 🟡 Medium | -| June 7, 2025 | [3170](https://leetcode.com/problems/lexicographically-minimum-string-after-removing-stars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3170) | 🟡 Medium | -| June 8, 2025 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | -| June 9, 2025 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | -| June 10, 2025 | [3442](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3442) | 🟢 Easy | -| June 11, 2025 | [3445](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3445) | 🔴 Hard | -| June 12, 2025 | [3423](https://leetcode.com/problems/maximum-difference-between-adjacent-elements-in-a-circular-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3423) | 🟢 Easy | -| June 13, 2025 | [2616](https://leetcode.com/problems/minimize-the-maximum-difference-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2616) | 🟡 Medium | -| June 14, 2025 | [2566](https://leetcode.com/problems/maximum-difference-by-remapping-a-digit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2566) | 🟢 Easy | -| June 15, 2025 | [1432](https://leetcode.com/problems/max-difference-you-can-get-from-changing-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1432) | 🟡 Medium | -| June 16, 2025 | [2016](https://leetcode.com/problems/maximum-difference-between-increasing-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2016) | 🟢 Easy | -| June 17, 2025 | [3405](https://leetcode.com/problems/count-the-number-of-arrays-with-k-matching-adjacent-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3405) | 🔴 Hard | -| June 18, 2025 | [2966](https://leetcode.com/problems/divide-array-into-arrays-with-max-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2966) | 🟡 Medium | -| June 19, 2025 | [2294](https://leetcode.com/problems/partition-array-such-that-maximum-difference-is-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2294) | 🟡 Medium | -| June 20, 2025 | [3443](https://leetcode.com/problems/maximum-manhattan-distance-after-k-changes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3443) | 🟡 Medium | -| June 21, 2025 | [3085](https://leetcode.com/problems/minimum-deletions-to-make-string-k-special/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3085) | 🟡 Medium | -| June 22, 2025 | [2138](https://leetcode.com/problems/divide-a-string-into-groups-of-size-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2138) | 🟢 Easy | -| June 23, 2025 | [2081](https://leetcode.com/problems/sum-of-k-mirror-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2081) | 🔴 Hard | -| June 24, 2025 | [2200](https://leetcode.com/problems/find-all-k-distant-indices-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2200) | 🟢 Easy | -| June 25, 2025 | [2040](https://leetcode.com/problems/kth-smallest-product-of-two-sorted-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2040) | 🔴 Hard | -| June 26, 2025 | [2311](https://leetcode.com/problems/longest-binary-subsequence-less-than-or-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2311) | 🟡 Medium | -| June 27, 2025 | [2014](https://leetcode.com/problems/longest-subsequence-repeated-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2014) | 🔴 Hard | -| June 28, 2025 | [2099](https://leetcode.com/problems/find-subsequence-of-length-k-with-the-largest-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2099) | 🟢 Easy | -| June 29, 2025 | [1498](https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1498) | 🟡 Medium | -| June 30, 2025 | [594](https://leetcode.com/problems/longest-harmonious-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/594) | 🟢 Easy | -| July 1, 2025 | [3330](https://leetcode.com/problems/find-the-original-typed-string-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3330) | 🟢 Easy | -| July 2, 2025 | [3333](https://leetcode.com/problems/find-the-original-typed-string-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3333) | 🔴 Hard | -| July 3, 2025 | [3304](https://leetcode.com/problems/find-the-k-th-character-in-string-game-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3304) | 🟢 Easy | -| July 4, 2025 | [3307](https://leetcode.com/problems/find-the-k-th-character-in-string-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3307) | 🔴 Hard | -| July 5, 2025 | [1394](https://leetcode.com/problems/find-lucky-integer-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1394) | 🟢 Easy | -| July 6, 2025 | [1865](https://leetcode.com/problems/finding-pairs-with-a-certain-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1865) | 🟡 Medium | -| July 7, 2025 | [1353](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1353) | 🟡 Medium | -| July 8, 2025 | [1751](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1751) | 🔴 Hard | -| July 9, 2025 | [3439](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3439) | 🟡 Medium | -| July 10, 2025 | [3440](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3440) | 🟡 Medium | -| July 11, 2025 | [2402](https://leetcode.com/problems/meeting-rooms-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2402) | 🔴 Hard | -| July 12, 2025 | [1900](https://leetcode.com/problems/the-earliest-and-latest-rounds-where-players-compete/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1900) | 🔴 Hard | -| July 13, 2025 | [2410](https://leetcode.com/problems/maximum-matching-of-players-with-trainers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2410) | 🟡 Medium | -| July 14, 2025 | [1290](https://leetcode.com/problems/convert-binary-number-in-a-linked-list-to-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1290) | 🟢 Easy | -| July 15, 2025 | [3136](https://leetcode.com/problems/valid-word/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3136) | 🟢 Easy | -| July 16, 2025 | [3201](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3201) | 🟡 Medium | -| July 17, 2025 | [3202](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3202) | 🟡 Medium | -| July 18, 2025 | [2163](https://leetcode.com/problems/minimum-difference-in-sums-after-removal-of-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2163) | 🔴 Hard | -| July 19, 2025 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | -| July 20, 2025 | [1948](https://leetcode.com/problems/delete-duplicate-folders-in-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1948) | 🔴 Hard | -| July 21, 2025 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | -| July 22, 2025 | [1695](https://leetcode.com/problems/maximum-erasure-value/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1695) | 🟡 Medium | -| July 23, 2025 | [1717](https://leetcode.com/problems/maximum-score-from-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1717) | 🟡 Medium | -| July 24, 2025 | [2322](https://leetcode.com/problems/minimum-score-after-removals-on-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2322) | 🔴 Hard | -| July 25, 2025 | [3487](https://leetcode.com/problems/maximum-unique-subarray-sum-after-deletion/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3487) | 🟢 Easy | -| July 26, 2025 | [3480](https://leetcode.com/problems/maximize-subarrays-after-removing-one-conflicting-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3480) | 🔴 Hard | -| July 27, 2025 | [2210](https://leetcode.com/problems/count-hills-and-valleys-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2210) | 🟢 Easy | -| July 28, 2025 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | -| July 29, 2025 | [2411](https://leetcode.com/problems/smallest-subarrays-with-maximum-bitwise-or/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2411) | 🟡 Medium | -| July 30, 2025 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | -| July 31, 2025 | [898](https://leetcode.com/problems/bitwise-ors-of-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/898) | 🟡 Medium | -| August 1, 2025 | [118](https://leetcode.com/problems/pascals-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/118) | 🟢 Easy | -| August 2, 2025 | [2561](https://leetcode.com/problems/rearranging-fruits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2561) | 🔴 Hard | -| August 3, 2025 | [2106](https://leetcode.com/problems/maximum-fruits-harvested-after-at-most-k-steps/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2106) | 🔴 Hard | -| August 4, 2025 | [904](https://leetcode.com/problems/fruit-into-baskets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/904) | 🟡 Medium | -| August 5, 2025 | [3477](https://leetcode.com/problems/fruits-into-baskets-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3477) | 🟢 Easy | -| August 6, 2025 | [3479](https://leetcode.com/problems/fruits-into-baskets-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3479) | 🟡 Medium | -| August 7, 2025 | [3363](https://leetcode.com/problems/find-the-maximum-number-of-fruits-collected/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3363) | 🔴 Hard | -| August 8, 2025 | [808](https://leetcode.com/problems/soup-servings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/808) | 🟡 Medium | -| August 9, 2025 | [231](https://leetcode.com/problems/power-of-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/231) | 🟢 Easy | -| August 10, 2025 | [869](https://leetcode.com/problems/reordered-power-of-2/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/869) | 🟡 Medium | -| August 11, 2025 | [2438](https://leetcode.com/problems/range-product-queries-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2438) | 🟡 Medium | -| August 12, 2025 | [2787](https://leetcode.com/problems/ways-to-express-an-integer-as-sum-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2787) | 🟡 Medium | -| August 13, 2025 | [326](https://leetcode.com/problems/power-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/326) | 🟢 Easy | -| August 14, 2025 | [2264](https://leetcode.com/problems/largest-3-same-digit-number-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2264) | 🟢 Easy | -| August 15, 2025 | [342](https://leetcode.com/problems/power-of-four/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/342) | 🟢 Easy | -| August 16, 2025 | [1323](https://leetcode.com/problems/maximum-69-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1323) | 🟢 Easy | -| August 17, 2025 | [837](https://leetcode.com/problems/new-21-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/837) | 🟡 Medium | -| August 18, 2025 | [679](https://leetcode.com/problems/24-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/679) | 🔴 Hard | -| August 19, 2025 | [2348](https://leetcode.com/problems/number-of-zero-filled-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2348) | 🟡 Medium | -| August 20, 2025 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | -| August 21, 2025 | [1504](https://leetcode.com/problems/count-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1504) | 🟡 Medium | -| August 22, 2025 | [3195](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3195) | 🟡 Medium | -| August 23, 2025 | [3197](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3197) | 🔴 Hard | -| August 24, 2025 | [1493](https://leetcode.com/problems/longest-subarray-of-1s-after-deleting-one-element/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1493) | 🟡 Medium | -| August 25, 2025 | [498](https://leetcode.com/problems/diagonal-traverse/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/498) | 🟡 Medium | -| August 26, 2025 | [3000](https://leetcode.com/problems/maximum-area-of-longest-diagonal-rectangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3000) | 🟢 Easy | -| August 27, 2025 | [3459](https://leetcode.com/problems/length-of-longest-v-shaped-diagonal-segment/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3459) | 🔴 Hard | -| August 28, 2025 | [3446](https://leetcode.com/problems/sort-matrix-by-diagonals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3446) | 🟡 Medium | -| August 29, 2025 | [3021](https://leetcode.com/problems/alice-and-bob-playing-flower-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3021) | 🟡 Medium | -| August 30, 2025 | [36](https://leetcode.com/problems/valid-sudoku/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/36) | 🟡 Medium | -| August 31, 2025 | [37](https://leetcode.com/problems/sudoku-solver/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/37) | 🔴 Hard | -| September 1, 2025 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | -| September 2, 2025 | [3025](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3025) | 🟡 Medium | -| September 3, 2025 | [3027](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3027) | 🔴 Hard | -| September 4, 2025 | [3516](https://leetcode.com/problems/find-closest-person/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3516) | 🟢 Easy | -| September 5, 2025 | [2749](https://leetcode.com/problems/minimum-operations-to-make-the-integer-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2749) | 🟡 Medium | -| September 6, 2025 | [3495](https://leetcode.com/problems/minimum-operations-to-make-array-elements-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3495) | 🔴 Hard | -| September 7, 2025 | [1304](https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1304) | 🟢 Easy | -| September 8, 2025 | [1317](https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1317) | 🟢 Easy | -| September 9, 2025 | [2327](https://leetcode.com/problems/number-of-people-aware-of-a-secret/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2327) | 🟡 Medium | -| September 10, 2025 | [1733](https://leetcode.com/problems/minimum-number-of-people-to-teach/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1733) | 🟡 Medium | -| September 11, 2025 | [2785](https://leetcode.com/problems/sort-vowels-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2785) | 🟡 Medium | -| September 12, 2025 | [3227](https://leetcode.com/problems/vowels-game-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3227) | 🟡 Medium | -| September 13, 2025 | [3541](https://leetcode.com/problems/find-most-frequent-vowel-and-consonant/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3541) | 🟢 Easy | -| September 14, 2025 | [966](https://leetcode.com/problems/vowel-spellchecker/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/966) | 🟡 Medium | -| September 15, 2025 | [1935](https://leetcode.com/problems/maximum-number-of-words-you-can-type/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1935) | 🟢 Easy | -| September 16, 2025 | [2197](https://leetcode.com/problems/replace-non-coprime-numbers-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2197) | 🔴 Hard | -| September 17, 2025 | [2353](https://leetcode.com/problems/design-a-food-rating-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2353) | 🟡 Medium | -| September 18, 2025 | [3408](https://leetcode.com/problems/design-task-manager/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3408) | 🟡 Medium | -| September 19, 2025 | [3484](https://leetcode.com/problems/design-spreadsheet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3484) | 🟡 Medium | -| September 20, 2025 | [3508](https://leetcode.com/problems/implement-router/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3508) | 🟡 Medium | -| September 21, 2025 | [1912](https://leetcode.com/problems/design-movie-rental-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1912) | 🔴 Hard | -| September 22, 2025 | [3005](https://leetcode.com/problems/count-elements-with-maximum-frequency/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3005) | 🟢 Easy | -| September 23, 2025 | [165](https://leetcode.com/problems/compare-version-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/165) | 🟡 Medium | -| September 24, 2025 | [166](https://leetcode.com/problems/fraction-to-recurring-decimal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/166) | 🟡 Medium | -| September 25, 2025 | [120](https://leetcode.com/problems/triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/120) | 🟡 Medium | -| September 26, 2025 | [611](https://leetcode.com/problems/valid-triangle-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/611) | 🟡 Medium | -| September 27, 2025 | [812](https://leetcode.com/problems/largest-triangle-area/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/812) | 🟢 Easy | -| September 28, 2025 | [976](https://leetcode.com/problems/largest-perimeter-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/976) | 🟢 Easy | -| September 29, 2025 | [1039](https://leetcode.com/problems/minimum-score-triangulation-of-polygon/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1039) | 🟡 Medium | -| September 30, 2025 | [2221](https://leetcode.com/problems/find-triangular-sum-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2221) | 🟡 Medium | | October 1, 2025 | [1518](https://leetcode.com/problems/water-bottles/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1518) | 🟢 Easy | | October 2, 2025 | [3100](https://leetcode.com/problems/water-bottles-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3100) | 🟡 Medium | | October 3, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | @@ -507,12 +67,585 @@ This means you'll always find an AI-generated solution to compare with or learn | October 29, 2025 | [3370](https://leetcode.com/problems/smallest-number-with-all-set-bits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3370) | 🟢 Easy | | October 30, 2025 | [1526](https://leetcode.com/problems/minimum-number-of-increments-on-subarrays-to-form-a-target-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1526) | 🔴 Hard | | October 31, 2025 | [3289](https://leetcode.com/problems/the-two-sneaky-numbers-of-digitville/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3289) | 🟢 Easy | -| November 1, 2025 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | -| November 2, 2025 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | -| November 3, 2025 | [1578](https://leetcode.com/problems/minimum-time-to-make-rope-colorful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1578) | 🟡 Medium | -| November 4, 2025 | [3318](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3318) | 🟢 Easy | -| November 5, 2025 | [3321](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3321) | 🔴 Hard | -| November 6, 2025 | [3607](https://leetcode.com/problems/power-grid-maintenance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3607) | 🟡 Medium | + +
+ +
+Problems from September, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| September 1, 2025 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | +| September 2, 2025 | [3025](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3025) | 🟡 Medium | +| September 3, 2025 | [3027](https://leetcode.com/problems/find-the-number-of-ways-to-place-people-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3027) | 🔴 Hard | +| September 4, 2025 | [3516](https://leetcode.com/problems/find-closest-person/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3516) | 🟢 Easy | +| September 5, 2025 | [2749](https://leetcode.com/problems/minimum-operations-to-make-the-integer-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2749) | 🟡 Medium | +| September 6, 2025 | [3495](https://leetcode.com/problems/minimum-operations-to-make-array-elements-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3495) | 🔴 Hard | +| September 7, 2025 | [1304](https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1304) | 🟢 Easy | +| September 8, 2025 | [1317](https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1317) | 🟢 Easy | +| September 9, 2025 | [2327](https://leetcode.com/problems/number-of-people-aware-of-a-secret/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2327) | 🟡 Medium | +| September 10, 2025 | [1733](https://leetcode.com/problems/minimum-number-of-people-to-teach/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1733) | 🟡 Medium | +| September 11, 2025 | [2785](https://leetcode.com/problems/sort-vowels-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2785) | 🟡 Medium | +| September 12, 2025 | [3227](https://leetcode.com/problems/vowels-game-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3227) | 🟡 Medium | +| September 13, 2025 | [3541](https://leetcode.com/problems/find-most-frequent-vowel-and-consonant/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3541) | 🟢 Easy | +| September 14, 2025 | [966](https://leetcode.com/problems/vowel-spellchecker/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/966) | 🟡 Medium | +| September 15, 2025 | [1935](https://leetcode.com/problems/maximum-number-of-words-you-can-type/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1935) | 🟢 Easy | +| September 16, 2025 | [2197](https://leetcode.com/problems/replace-non-coprime-numbers-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2197) | 🔴 Hard | +| September 17, 2025 | [2353](https://leetcode.com/problems/design-a-food-rating-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2353) | 🟡 Medium | +| September 18, 2025 | [3408](https://leetcode.com/problems/design-task-manager/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3408) | 🟡 Medium | +| September 19, 2025 | [3484](https://leetcode.com/problems/design-spreadsheet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3484) | 🟡 Medium | +| September 20, 2025 | [3508](https://leetcode.com/problems/implement-router/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3508) | 🟡 Medium | +| September 21, 2025 | [1912](https://leetcode.com/problems/design-movie-rental-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1912) | 🔴 Hard | +| September 22, 2025 | [3005](https://leetcode.com/problems/count-elements-with-maximum-frequency/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3005) | 🟢 Easy | +| September 23, 2025 | [165](https://leetcode.com/problems/compare-version-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/165) | 🟡 Medium | +| September 24, 2025 | [166](https://leetcode.com/problems/fraction-to-recurring-decimal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/166) | 🟡 Medium | +| September 25, 2025 | [120](https://leetcode.com/problems/triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/120) | 🟡 Medium | +| September 26, 2025 | [611](https://leetcode.com/problems/valid-triangle-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/611) | 🟡 Medium | +| September 27, 2025 | [812](https://leetcode.com/problems/largest-triangle-area/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/812) | 🟢 Easy | +| September 28, 2025 | [976](https://leetcode.com/problems/largest-perimeter-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/976) | 🟢 Easy | +| September 29, 2025 | [1039](https://leetcode.com/problems/minimum-score-triangulation-of-polygon/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1039) | 🟡 Medium | +| September 30, 2025 | [2221](https://leetcode.com/problems/find-triangular-sum-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2221) | 🟡 Medium | + +
+ +
+Problems from August, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| August 1, 2025 | [118](https://leetcode.com/problems/pascals-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/118) | 🟢 Easy | +| August 2, 2025 | [2561](https://leetcode.com/problems/rearranging-fruits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2561) | 🔴 Hard | +| August 3, 2025 | [2106](https://leetcode.com/problems/maximum-fruits-harvested-after-at-most-k-steps/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2106) | 🔴 Hard | +| August 4, 2025 | [904](https://leetcode.com/problems/fruit-into-baskets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/904) | 🟡 Medium | +| August 5, 2025 | [3477](https://leetcode.com/problems/fruits-into-baskets-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3477) | 🟢 Easy | +| August 6, 2025 | [3479](https://leetcode.com/problems/fruits-into-baskets-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3479) | 🟡 Medium | +| August 7, 2025 | [3363](https://leetcode.com/problems/find-the-maximum-number-of-fruits-collected/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3363) | 🔴 Hard | +| August 8, 2025 | [808](https://leetcode.com/problems/soup-servings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/808) | 🟡 Medium | +| August 9, 2025 | [231](https://leetcode.com/problems/power-of-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/231) | 🟢 Easy | +| August 10, 2025 | [869](https://leetcode.com/problems/reordered-power-of-2/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/869) | 🟡 Medium | +| August 11, 2025 | [2438](https://leetcode.com/problems/range-product-queries-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2438) | 🟡 Medium | +| August 12, 2025 | [2787](https://leetcode.com/problems/ways-to-express-an-integer-as-sum-of-powers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2787) | 🟡 Medium | +| August 13, 2025 | [326](https://leetcode.com/problems/power-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/326) | 🟢 Easy | +| August 14, 2025 | [2264](https://leetcode.com/problems/largest-3-same-digit-number-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2264) | 🟢 Easy | +| August 15, 2025 | [342](https://leetcode.com/problems/power-of-four/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/342) | 🟢 Easy | +| August 16, 2025 | [1323](https://leetcode.com/problems/maximum-69-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1323) | 🟢 Easy | +| August 17, 2025 | [837](https://leetcode.com/problems/new-21-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/837) | 🟡 Medium | +| August 18, 2025 | [679](https://leetcode.com/problems/24-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/679) | 🔴 Hard | +| August 19, 2025 | [2348](https://leetcode.com/problems/number-of-zero-filled-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2348) | 🟡 Medium | +| August 20, 2025 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | +| August 21, 2025 | [1504](https://leetcode.com/problems/count-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1504) | 🟡 Medium | +| August 22, 2025 | [3195](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3195) | 🟡 Medium | +| August 23, 2025 | [3197](https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3197) | 🔴 Hard | +| August 24, 2025 | [1493](https://leetcode.com/problems/longest-subarray-of-1s-after-deleting-one-element/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1493) | 🟡 Medium | +| August 25, 2025 | [498](https://leetcode.com/problems/diagonal-traverse/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/498) | 🟡 Medium | +| August 26, 2025 | [3000](https://leetcode.com/problems/maximum-area-of-longest-diagonal-rectangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3000) | 🟢 Easy | +| August 27, 2025 | [3459](https://leetcode.com/problems/length-of-longest-v-shaped-diagonal-segment/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3459) | 🔴 Hard | +| August 28, 2025 | [3446](https://leetcode.com/problems/sort-matrix-by-diagonals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3446) | 🟡 Medium | +| August 29, 2025 | [3021](https://leetcode.com/problems/alice-and-bob-playing-flower-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3021) | 🟡 Medium | +| August 30, 2025 | [36](https://leetcode.com/problems/valid-sudoku/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/36) | 🟡 Medium | +| August 31, 2025 | [37](https://leetcode.com/problems/sudoku-solver/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/37) | 🔴 Hard | + +
+ +
+Problems from July, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| July 1, 2025 | [3330](https://leetcode.com/problems/find-the-original-typed-string-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3330) | 🟢 Easy | +| July 2, 2025 | [3333](https://leetcode.com/problems/find-the-original-typed-string-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3333) | 🔴 Hard | +| July 3, 2025 | [3304](https://leetcode.com/problems/find-the-k-th-character-in-string-game-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3304) | 🟢 Easy | +| July 4, 2025 | [3307](https://leetcode.com/problems/find-the-k-th-character-in-string-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3307) | 🔴 Hard | +| July 5, 2025 | [1394](https://leetcode.com/problems/find-lucky-integer-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1394) | 🟢 Easy | +| July 6, 2025 | [1865](https://leetcode.com/problems/finding-pairs-with-a-certain-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1865) | 🟡 Medium | +| July 7, 2025 | [1353](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1353) | 🟡 Medium | +| July 8, 2025 | [1751](https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1751) | 🔴 Hard | +| July 9, 2025 | [3439](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3439) | 🟡 Medium | +| July 10, 2025 | [3440](https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3440) | 🟡 Medium | +| July 11, 2025 | [2402](https://leetcode.com/problems/meeting-rooms-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2402) | 🔴 Hard | +| July 12, 2025 | [1900](https://leetcode.com/problems/the-earliest-and-latest-rounds-where-players-compete/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1900) | 🔴 Hard | +| July 13, 2025 | [2410](https://leetcode.com/problems/maximum-matching-of-players-with-trainers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2410) | 🟡 Medium | +| July 14, 2025 | [1290](https://leetcode.com/problems/convert-binary-number-in-a-linked-list-to-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1290) | 🟢 Easy | +| July 15, 2025 | [3136](https://leetcode.com/problems/valid-word/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3136) | 🟢 Easy | +| July 16, 2025 | [3201](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3201) | 🟡 Medium | +| July 17, 2025 | [3202](https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3202) | 🟡 Medium | +| July 18, 2025 | [2163](https://leetcode.com/problems/minimum-difference-in-sums-after-removal-of-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2163) | 🔴 Hard | +| July 19, 2025 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | +| July 20, 2025 | [1948](https://leetcode.com/problems/delete-duplicate-folders-in-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1948) | 🔴 Hard | +| July 21, 2025 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | +| July 22, 2025 | [1695](https://leetcode.com/problems/maximum-erasure-value/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1695) | 🟡 Medium | +| July 23, 2025 | [1717](https://leetcode.com/problems/maximum-score-from-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1717) | 🟡 Medium | +| July 24, 2025 | [2322](https://leetcode.com/problems/minimum-score-after-removals-on-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2322) | 🔴 Hard | +| July 25, 2025 | [3487](https://leetcode.com/problems/maximum-unique-subarray-sum-after-deletion/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3487) | 🟢 Easy | +| July 26, 2025 | [3480](https://leetcode.com/problems/maximize-subarrays-after-removing-one-conflicting-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3480) | 🔴 Hard | +| July 27, 2025 | [2210](https://leetcode.com/problems/count-hills-and-valleys-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2210) | 🟢 Easy | +| July 28, 2025 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | +| July 29, 2025 | [2411](https://leetcode.com/problems/smallest-subarrays-with-maximum-bitwise-or/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2411) | 🟡 Medium | +| July 30, 2025 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | +| July 31, 2025 | [898](https://leetcode.com/problems/bitwise-ors-of-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/898) | 🟡 Medium | + +
+ +
+Problems from June, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| June 1, 2025 | [2929](https://leetcode.com/problems/distribute-candies-among-children-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2929) | 🟡 Medium | +| June 2, 2025 | [135](https://leetcode.com/problems/candy/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/135) | 🔴 Hard | +| June 3, 2025 | [1298](https://leetcode.com/problems/maximum-candies-you-can-get-from-boxes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1298) | 🔴 Hard | +| June 4, 2025 | [3403](https://leetcode.com/problems/find-the-lexicographically-largest-string-from-the-box-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3403) | 🟡 Medium | +| June 5, 2025 | [1061](https://leetcode.com/problems/lexicographically-smallest-equivalent-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1061) | 🟡 Medium | +| June 6, 2025 | [2434](https://leetcode.com/problems/using-a-robot-to-print-the-lexicographically-smallest-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2434) | 🟡 Medium | +| June 7, 2025 | [3170](https://leetcode.com/problems/lexicographically-minimum-string-after-removing-stars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3170) | 🟡 Medium | +| June 8, 2025 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | +| June 9, 2025 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | +| June 10, 2025 | [3442](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3442) | 🟢 Easy | +| June 11, 2025 | [3445](https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3445) | 🔴 Hard | +| June 12, 2025 | [3423](https://leetcode.com/problems/maximum-difference-between-adjacent-elements-in-a-circular-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3423) | 🟢 Easy | +| June 13, 2025 | [2616](https://leetcode.com/problems/minimize-the-maximum-difference-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2616) | 🟡 Medium | +| June 14, 2025 | [2566](https://leetcode.com/problems/maximum-difference-by-remapping-a-digit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2566) | 🟢 Easy | +| June 15, 2025 | [1432](https://leetcode.com/problems/max-difference-you-can-get-from-changing-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1432) | 🟡 Medium | +| June 16, 2025 | [2016](https://leetcode.com/problems/maximum-difference-between-increasing-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2016) | 🟢 Easy | +| June 17, 2025 | [3405](https://leetcode.com/problems/count-the-number-of-arrays-with-k-matching-adjacent-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3405) | 🔴 Hard | +| June 18, 2025 | [2966](https://leetcode.com/problems/divide-array-into-arrays-with-max-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2966) | 🟡 Medium | +| June 19, 2025 | [2294](https://leetcode.com/problems/partition-array-such-that-maximum-difference-is-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2294) | 🟡 Medium | +| June 20, 2025 | [3443](https://leetcode.com/problems/maximum-manhattan-distance-after-k-changes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3443) | 🟡 Medium | +| June 21, 2025 | [3085](https://leetcode.com/problems/minimum-deletions-to-make-string-k-special/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3085) | 🟡 Medium | +| June 22, 2025 | [2138](https://leetcode.com/problems/divide-a-string-into-groups-of-size-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2138) | 🟢 Easy | +| June 23, 2025 | [2081](https://leetcode.com/problems/sum-of-k-mirror-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2081) | 🔴 Hard | +| June 24, 2025 | [2200](https://leetcode.com/problems/find-all-k-distant-indices-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2200) | 🟢 Easy | +| June 25, 2025 | [2040](https://leetcode.com/problems/kth-smallest-product-of-two-sorted-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2040) | 🔴 Hard | +| June 26, 2025 | [2311](https://leetcode.com/problems/longest-binary-subsequence-less-than-or-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2311) | 🟡 Medium | +| June 27, 2025 | [2014](https://leetcode.com/problems/longest-subsequence-repeated-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2014) | 🔴 Hard | +| June 28, 2025 | [2099](https://leetcode.com/problems/find-subsequence-of-length-k-with-the-largest-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2099) | 🟢 Easy | +| June 29, 2025 | [1498](https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1498) | 🟡 Medium | +| June 30, 2025 | [594](https://leetcode.com/problems/longest-harmonious-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/594) | 🟢 Easy | + +
+ +
+Problems from May, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| May 1, 2025 | [2071](https://leetcode.com/problems/maximum-number-of-tasks-you-can-assign/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2071) | 🔴 Hard | +| May 2, 2025 | [838](https://leetcode.com/problems/push-dominoes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/838) | 🟡 Medium | +| May 3, 2025 | [1007](https://leetcode.com/problems/minimum-domino-rotations-for-equal-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1007) | 🟡 Medium | +| May 4, 2025 | [1128](https://leetcode.com/problems/number-of-equivalent-domino-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1128) | 🟢 Easy | +| May 5, 2025 | [790](https://leetcode.com/problems/domino-and-tromino-tiling/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/790) | 🟡 Medium | +| May 6, 2025 | [1920](https://leetcode.com/problems/build-array-from-permutation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1920) | 🟢 Easy | +| May 7, 2025 | [3341](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3341) | 🟡 Medium | +| May 8, 2025 | [3342](https://leetcode.com/problems/find-minimum-time-to-reach-last-room-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3342) | 🟡 Medium | +| May 9, 2025 | [3343](https://leetcode.com/problems/count-number-of-balanced-permutations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3343) | 🔴 Hard | +| May 10, 2025 | [2918](https://leetcode.com/problems/minimum-equal-sum-of-two-arrays-after-replacing-zeros/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2918) | 🟡 Medium | +| May 11, 2025 | [1550](https://leetcode.com/problems/three-consecutive-odds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1550) | 🟢 Easy | +| May 12, 2025 | [2094](https://leetcode.com/problems/finding-3-digit-even-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2094) | 🟢 Easy | +| May 13, 2025 | [3335](https://leetcode.com/problems/total-characters-in-string-after-transformations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3335) | 🟡 Medium | +| May 14, 2025 | [3337](https://leetcode.com/problems/total-characters-in-string-after-transformations-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3337) | 🔴 Hard | +| May 15, 2025 | [2900](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2900) | 🟢 Easy | +| May 16, 2025 | [2901](https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2901) | 🟡 Medium | +| May 17, 2025 | [75](https://leetcode.com/problems/sort-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/75) | 🟡 Medium | +| May 18, 2025 | [1931](https://leetcode.com/problems/painting-a-grid-with-three-different-colors/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1931) | 🔴 Hard | +| May 19, 2025 | [3024](https://leetcode.com/problems/type-of-triangle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3024) | 🟢 Easy | +| May 20, 2025 | [3355](https://leetcode.com/problems/zero-array-transformation-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3355) | 🟡 Medium | +| May 21, 2025 | [73](https://leetcode.com/problems/set-matrix-zeroes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/73) | 🟡 Medium | +| May 22, 2025 | [3362](https://leetcode.com/problems/zero-array-transformation-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3362) | 🟡 Medium | +| May 23, 2025 | [3068](https://leetcode.com/problems/find-the-maximum-sum-of-node-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3068) | 🔴 Hard | +| May 24, 2025 | [2942](https://leetcode.com/problems/find-words-containing-character/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2942) | 🟢 Easy | +| May 25, 2025 | [2131](https://leetcode.com/problems/longest-palindrome-by-concatenating-two-letter-words/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2131) | 🟡 Medium | +| May 26, 2025 | [1857](https://leetcode.com/problems/largest-color-value-in-a-directed-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1857) | 🔴 Hard | +| May 27, 2025 | [2894](https://leetcode.com/problems/divisible-and-non-divisible-sums-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2894) | 🟢 Easy | +| May 28, 2025 | [3372](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3372) | 🟡 Medium | +| May 29, 2025 | [3373](https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3373) | 🔴 Hard | +| May 30, 2025 | [2359](https://leetcode.com/problems/find-closest-node-to-given-two-nodes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2359) | 🟡 Medium | +| May 31, 2025 | [909](https://leetcode.com/problems/snakes-and-ladders/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/909) | 🟡 Medium | + +
+ +
+Problems from April, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| April 1, 2025 | [2140](https://leetcode.com/problems/solving-questions-with-brainpower/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2140) | 🟡 Medium | +| April 2, 2025 | [2873](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2873) | 🟢 Easy | +| April 3, 2025 | [2874](https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2874) | 🟡 Medium | +| April 4, 2025 | [1123](https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1123) | 🟡 Medium | +| April 5, 2025 | [1863](https://leetcode.com/problems/sum-of-all-subset-xor-totals/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1863) | 🟢 Easy | +| April 6, 2025 | [368](https://leetcode.com/problems/largest-divisible-subset/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/368) | 🟡 Medium | +| April 7, 2025 | [416](https://leetcode.com/problems/partition-equal-subset-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/416) | 🟡 Medium | +| April 8, 2025 | [3396](https://leetcode.com/problems/minimum-number-of-operations-to-make-elements-in-array-distinct/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3396) | 🟢 Easy | +| April 9, 2025 | [3375](https://leetcode.com/problems/minimum-operations-to-make-array-values-equal-to-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3375) | 🟢 Easy | +| April 10, 2025 | [2999](https://leetcode.com/problems/count-the-number-of-powerful-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2999) | 🔴 Hard | +| April 11, 2025 | [2843](https://leetcode.com/problems/count-symmetric-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2843) | 🟢 Easy | +| April 12, 2025 | [3272](https://leetcode.com/problems/find-the-count-of-good-integers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3272) | 🔴 Hard | +| April 13, 2025 | [1922](https://leetcode.com/problems/count-good-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1922) | 🟡 Medium | +| April 14, 2025 | [1534](https://leetcode.com/problems/count-good-triplets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1534) | 🟢 Easy | +| April 15, 2025 | [2179](https://leetcode.com/problems/count-good-triplets-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2179) | 🔴 Hard | +| April 16, 2025 | [2537](https://leetcode.com/problems/count-the-number-of-good-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2537) | 🟡 Medium | +| April 17, 2025 | [2176](https://leetcode.com/problems/count-equal-and-divisible-pairs-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2176) | 🟢 Easy | +| April 18, 2025 | [38](https://leetcode.com/problems/count-and-say/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/38) | 🟡 Medium | +| April 19, 2025 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | +| April 20, 2025 | [781](https://leetcode.com/problems/rabbits-in-forest/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/781) | 🟡 Medium | +| April 21, 2025 | [2145](https://leetcode.com/problems/count-the-hidden-sequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2145) | 🟡 Medium | +| April 22, 2025 | [2338](https://leetcode.com/problems/count-the-number-of-ideal-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2338) | 🔴 Hard | +| April 23, 2025 | [1399](https://leetcode.com/problems/count-largest-group/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1399) | 🟢 Easy | +| April 24, 2025 | [2799](https://leetcode.com/problems/count-complete-subarrays-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2799) | 🟡 Medium | +| April 25, 2025 | [2845](https://leetcode.com/problems/count-of-interesting-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2845) | 🟡 Medium | +| April 26, 2025 | [2444](https://leetcode.com/problems/count-subarrays-with-fixed-bounds/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2444) | 🔴 Hard | +| April 27, 2025 | [3392](https://leetcode.com/problems/count-subarrays-of-length-three-with-a-condition/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3392) | 🟢 Easy | +| April 28, 2025 | [2302](https://leetcode.com/problems/count-subarrays-with-score-less-than-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2302) | 🔴 Hard | +| April 29, 2025 | [2962](https://leetcode.com/problems/count-subarrays-where-max-element-appears-at-least-k-times/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2962) | 🟡 Medium | +| April 30, 2025 | [1295](https://leetcode.com/problems/find-numbers-with-even-number-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1295) | 🟢 Easy | + +
+ +
+Problems from March, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| March 1, 2025 | [2460](https://leetcode.com/problems/apply-operations-to-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2460) | 🟢 Easy | +| March 2, 2025 | [2570](https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2570) | 🟢 Easy | +| March 3, 2025 | [2161](https://leetcode.com/problems/partition-array-according-to-given-pivot/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2161) | 🟡 Medium | +| March 4, 2025 | [1780](https://leetcode.com/problems/check-if-number-is-a-sum-of-powers-of-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1780) | 🟡 Medium | +| March 5, 2025 | [2579](https://leetcode.com/problems/count-total-number-of-colored-cells/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2579) | 🟡 Medium | +| March 6, 2025 | [2965](https://leetcode.com/problems/find-missing-and-repeated-values/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2965) | 🟢 Easy | +| March 7, 2025 | [2523](https://leetcode.com/problems/closest-prime-numbers-in-range/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2523) | 🟡 Medium | +| March 8, 2025 | [2379](https://leetcode.com/problems/minimum-recolors-to-get-k-consecutive-black-blocks/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2379) | 🟢 Easy | +| March 9, 2025 | [3208](https://leetcode.com/problems/alternating-groups-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3208) | 🟡 Medium | +| March 10, 2025 | [3306](https://leetcode.com/problems/count-of-substrings-containing-every-vowel-and-k-consonants-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3306) | 🟡 Medium | +| March 11, 2025 | [1358](https://leetcode.com/problems/number-of-substrings-containing-all-three-characters/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1358) | 🟡 Medium | +| March 12, 2025 | [2529](https://leetcode.com/problems/maximum-count-of-positive-integer-and-negative-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2529) | 🟢 Easy | +| March 13, 2025 | [3356](https://leetcode.com/problems/zero-array-transformation-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3356) | 🟡 Medium | +| March 14, 2025 | [2226](https://leetcode.com/problems/maximum-candies-allocated-to-k-children/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2226) | 🟡 Medium | +| March 15, 2025 | [2560](https://leetcode.com/problems/house-robber-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2560) | 🟡 Medium | +| March 16, 2025 | [2594](https://leetcode.com/problems/minimum-time-to-repair-cars/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2594) | 🟡 Medium | +| March 17, 2025 | [2206](https://leetcode.com/problems/divide-array-into-equal-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2206) | 🟢 Easy | +| March 18, 2025 | [2401](https://leetcode.com/problems/longest-nice-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2401) | 🟡 Medium | +| March 19, 2025 | [3191](https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3191) | 🟡 Medium | +| March 20, 2025 | [3108](https://leetcode.com/problems/minimum-cost-walk-in-weighted-graph/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3108) | 🔴 Hard | +| March 21, 2025 | [2115](https://leetcode.com/problems/find-all-possible-recipes-from-given-supplies/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2115) | 🟡 Medium | +| March 22, 2025 | [2685](https://leetcode.com/problems/count-the-number-of-complete-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2685) | 🟡 Medium | +| March 23, 2025 | [1976](https://leetcode.com/problems/number-of-ways-to-arrive-at-destination/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1976) | 🟡 Medium | +| March 24, 2025 | [3169](https://leetcode.com/problems/count-days-without-meetings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3169) | 🟡 Medium | +| March 25, 2025 | [3394](https://leetcode.com/problems/check-if-grid-can-be-cut-into-sections/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3394) | 🟡 Medium | +| March 26, 2025 | [2033](https://leetcode.com/problems/minimum-operations-to-make-a-uni-value-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2033) | 🟡 Medium | +| March 27, 2025 | [2780](https://leetcode.com/problems/minimum-index-of-a-valid-split/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2780) | 🟡 Medium | +| March 28, 2025 | [2503](https://leetcode.com/problems/maximum-number-of-points-from-grid-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2503) | 🔴 Hard | +| March 29, 2025 | [2818](https://leetcode.com/problems/apply-operations-to-maximize-score/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2818) | 🔴 Hard | +| March 30, 2025 | [763](https://leetcode.com/problems/partition-labels/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/763) | 🟡 Medium | +| March 31, 2025 | [2551](https://leetcode.com/problems/put-marbles-in-bags/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2551) | 🔴 Hard | + +
+ +
+Problems from February, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| February 1, 2025 | [3151](https://leetcode.com/problems/special-array-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3151) | 🟢 Easy | +| February 2, 2025 | [1752](https://leetcode.com/problems/check-if-array-is-sorted-and-rotated/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1752) | 🟢 Easy | +| February 3, 2025 | [3105](https://leetcode.com/problems/longest-strictly-increasing-or-strictly-decreasing-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3105) | 🟢 Easy | +| February 4, 2025 | [1800](https://leetcode.com/problems/maximum-ascending-subarray-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1800) | 🟢 Easy | +| February 5, 2025 | [1790](https://leetcode.com/problems/check-if-one-string-swap-can-make-strings-equal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1790) | 🟢 Easy | +| February 6, 2025 | [1726](https://leetcode.com/problems/tuple-with-same-product/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1726) | 🟡 Medium | +| February 7, 2025 | [3160](https://leetcode.com/problems/find-the-number-of-distinct-colors-among-the-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3160) | 🟡 Medium | +| February 8, 2025 | [2349](https://leetcode.com/problems/design-a-number-container-system/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2349) | 🟡 Medium | +| February 9, 2025 | [2364](https://leetcode.com/problems/count-number-of-bad-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2364) | 🟡 Medium | +| February 10, 2025 | [3174](https://leetcode.com/problems/clear-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3174) | 🟢 Easy | +| February 11, 2025 | [1910](https://leetcode.com/problems/remove-all-occurrences-of-a-substring/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1910) | 🟡 Medium | +| February 12, 2025 | [2342](https://leetcode.com/problems/max-sum-of-a-pair-with-equal-sum-of-digits/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2342) | 🟡 Medium | +| February 13, 2025 | [3066](https://leetcode.com/problems/minimum-operations-to-exceed-threshold-value-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3066) | 🟡 Medium | +| February 14, 2025 | [1352](https://leetcode.com/problems/product-of-the-last-k-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1352) | 🟡 Medium | +| February 15, 2025 | [2698](https://leetcode.com/problems/find-the-punishment-number-of-an-integer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2698) | 🟡 Medium | +| February 16, 2025 | [1718](https://leetcode.com/problems/construct-the-lexicographically-largest-valid-sequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1718) | 🟡 Medium | +| February 17, 2025 | [1079](https://leetcode.com/problems/letter-tile-possibilities/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1079) | 🟡 Medium | +| February 18, 2025 | [2375](https://leetcode.com/problems/construct-smallest-number-from-di-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2375) | 🟡 Medium | +| February 19, 2025 | [1415](https://leetcode.com/problems/the-k-th-lexicographical-string-of-all-happy-strings-of-length-n/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1415) | 🟡 Medium | +| February 20, 2025 | [1980](https://leetcode.com/problems/find-unique-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1980) | 🟡 Medium | +| February 21, 2025 | [1261](https://leetcode.com/problems/find-elements-in-a-contaminated-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1261) | 🟡 Medium | +| February 22, 2025 | [1028](https://leetcode.com/problems/recover-a-tree-from-preorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1028) | 🔴 Hard | +| February 23, 2025 | [889](https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/889) | 🟡 Medium | +| February 24, 2025 | [2467](https://leetcode.com/problems/most-profitable-path-in-a-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2467) | 🟡 Medium | +| February 25, 2025 | [1524](https://leetcode.com/problems/number-of-sub-arrays-with-odd-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1524) | 🟡 Medium | +| February 26, 2025 | [1749](https://leetcode.com/problems/maximum-absolute-sum-of-any-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1749) | 🟡 Medium | +| February 27, 2025 | [873](https://leetcode.com/problems/length-of-longest-fibonacci-subsequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/873) | 🟡 Medium | +| February 28, 2025 | [1092](https://leetcode.com/problems/shortest-common-supersequence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1092) | 🔴 Hard | + +
+ +
+Problems from January, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| January 1, 2025 | [1422](https://leetcode.com/problems/maximum-score-after-splitting-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1422) | 🟢 Easy | +| January 2, 2025 | [2559](https://leetcode.com/problems/count-vowel-strings-in-ranges/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2559) | 🟡 Medium | +| January 3, 2025 | [2270](https://leetcode.com/problems/number-of-ways-to-split-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2270) | 🟡 Medium | +| January 4, 2025 | [1930](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1930) | 🟡 Medium | +| January 5, 2025 | [2381](https://leetcode.com/problems/shifting-letters-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2381) | 🟡 Medium | +| January 6, 2025 | [1769](https://leetcode.com/problems/minimum-number-of-operations-to-move-all-balls-to-each-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1769) | 🟡 Medium | +| January 7, 2025 | [1408](https://leetcode.com/problems/string-matching-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1408) | 🟢 Easy | +| January 8, 2025 | [3042](https://leetcode.com/problems/count-prefix-and-suffix-pairs-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3042) | 🟢 Easy | +| January 9, 2025 | [2185](https://leetcode.com/problems/counting-words-with-a-given-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2185) | 🟢 Easy | +| January 10, 2025 | [916](https://leetcode.com/problems/word-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/916) | 🟡 Medium | +| January 11, 2025 | [1400](https://leetcode.com/problems/construct-k-palindrome-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1400) | 🟡 Medium | +| January 12, 2025 | [2116](https://leetcode.com/problems/check-if-a-parentheses-string-can-be-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2116) | 🟡 Medium | +| January 13, 2025 | [3223](https://leetcode.com/problems/minimum-length-of-string-after-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3223) | 🟡 Medium | +| January 14, 2025 | [2657](https://leetcode.com/problems/find-the-prefix-common-array-of-two-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2657) | 🟡 Medium | +| January 15, 2025 | [2429](https://leetcode.com/problems/minimize-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2429) | 🟡 Medium | +| January 16, 2025 | [2425](https://leetcode.com/problems/bitwise-xor-of-all-pairings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2425) | 🟡 Medium | +| January 17, 2025 | [2683](https://leetcode.com/problems/neighboring-bitwise-xor/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2683) | 🟡 Medium | +| January 18, 2025 | [1368](https://leetcode.com/problems/minimum-cost-to-make-at-least-one-valid-path-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1368) | 🔴 Hard | +| January 19, 2025 | [407](https://leetcode.com/problems/trapping-rain-water-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/407) | 🔴 Hard | +| January 20, 2025 | [2661](https://leetcode.com/problems/first-completely-painted-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2661) | 🟡 Medium | +| January 21, 2025 | [2017](https://leetcode.com/problems/grid-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2017) | 🟡 Medium | +| January 22, 2025 | [1765](https://leetcode.com/problems/map-of-highest-peak/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1765) | 🟡 Medium | +| January 23, 2025 | [1267](https://leetcode.com/problems/count-servers-that-communicate/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1267) | 🟡 Medium | +| January 24, 2025 | [802](https://leetcode.com/problems/find-eventual-safe-states/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/802) | 🟡 Medium | +| January 25, 2025 | [2948](https://leetcode.com/problems/make-lexicographically-smallest-array-by-swapping-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2948) | 🟡 Medium | +| January 26, 2025 | [2127](https://leetcode.com/problems/maximum-employees-to-be-invited-to-a-meeting/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2127) | 🔴 Hard | +| January 27, 2025 | [1462](https://leetcode.com/problems/course-schedule-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1462) | 🟡 Medium | +| January 28, 2025 | [2658](https://leetcode.com/problems/maximum-number-of-fish-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2658) | 🟡 Medium | +| January 29, 2025 | [684](https://leetcode.com/problems/redundant-connection/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/684) | 🟡 Medium | +| January 30, 2025 | [2493](https://leetcode.com/problems/divide-nodes-into-the-maximum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2493) | 🔴 Hard | +| January 31, 2025 | [827](https://leetcode.com/problems/making-a-large-island/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/827) | 🔴 Hard | + +
+ +
+Problems from December, 2024 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| December 1, 2024 | [1346](https://leetcode.com/problems/check-if-n-and-its-double-exist/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1346) | 🟢 Easy | +| December 2, 2024 | [1455](https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1455) | 🟢 Easy | +| December 3, 2024 | [2109](https://leetcode.com/problems/adding-spaces-to-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2109) | 🟡 Medium | +| December 4, 2024 | [2825](https://leetcode.com/problems/make-string-a-subsequence-using-cyclic-increments/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2825) | 🟡 Medium | +| December 5, 2024 | [2337](https://leetcode.com/problems/move-pieces-to-obtain-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2337) | 🟡 Medium | +| December 6, 2024 | [2554](https://leetcode.com/problems/maximum-number-of-integers-to-choose-from-a-range-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2554) | 🟡 Medium | +| December 7, 2024 | [1760](https://leetcode.com/problems/minimum-limit-of-balls-in-a-bag/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1760) | 🟡 Medium | +| December 8, 2024 | [2054](https://leetcode.com/problems/two-best-non-overlapping-events/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2054) | 🟡 Medium | +| December 9, 2024 | [3152](https://leetcode.com/problems/special-array-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3152) | 🟡 Medium | +| December 10, 2024 | [2981](https://leetcode.com/problems/find-longest-special-substring-that-occurs-thrice-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2981) | 🟡 Medium | +| December 11, 2024 | [2779](https://leetcode.com/problems/maximum-beauty-of-an-array-after-applying-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2779) | 🟡 Medium | +| December 12, 2024 | [2558](https://leetcode.com/problems/take-gifts-from-the-richest-pile/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2558) | 🟢 Easy | +| December 13, 2024 | [2593](https://leetcode.com/problems/find-score-of-an-array-after-marking-all-elements/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2593) | 🟡 Medium | +| December 14, 2024 | [2762](https://leetcode.com/problems/continuous-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2762) | 🟡 Medium | +| December 15, 2024 | [1792](https://leetcode.com/problems/maximum-average-pass-ratio/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1792) | 🟡 Medium | +| December 16, 2024 | [3264](https://leetcode.com/problems/final-array-state-after-k-multiplication-operations-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3264) | 🟢 Easy | +| December 17, 2024 | [2182](https://leetcode.com/problems/construct-string-with-repeat-limit/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2182) | 🟡 Medium | +| December 18, 2024 | [1475](https://leetcode.com/problems/final-prices-with-a-special-discount-in-a-shop/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1475) | 🟢 Easy | +| December 19, 2024 | [769](https://leetcode.com/problems/max-chunks-to-make-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/769) | 🟡 Medium | +| December 20, 2024 | [2415](https://leetcode.com/problems/reverse-odd-levels-of-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2415) | 🟡 Medium | +| December 21, 2024 | [2872](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2872) | 🔴 Hard | +| December 22, 2024 | [2940](https://leetcode.com/problems/find-building-where-alice-and-bob-can-meet/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2940) | 🔴 Hard | +| December 23, 2024 | [2471](https://leetcode.com/problems/minimum-number-of-operations-to-sort-a-binary-tree-by-level/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2471) | 🟡 Medium | +| December 24, 2024 | [3203](https://leetcode.com/problems/find-minimum-diameter-after-merging-two-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3203) | 🔴 Hard | +| December 25, 2024 | [515](https://leetcode.com/problems/find-largest-value-in-each-tree-row/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/515) | 🟡 Medium | +| December 26, 2024 | [494](https://leetcode.com/problems/target-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/494) | 🟡 Medium | +| December 27, 2024 | [1014](https://leetcode.com/problems/best-sightseeing-pair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1014) | 🟡 Medium | +| December 28, 2024 | [689](https://leetcode.com/problems/maximum-sum-of-3-non-overlapping-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/689) | 🔴 Hard | +| December 29, 2024 | [1639](https://leetcode.com/problems/number-of-ways-to-form-a-target-string-given-a-dictionary/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1639) | 🔴 Hard | +| December 30, 2024 | [2466](https://leetcode.com/problems/count-ways-to-build-good-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2466) | 🟡 Medium | +| December 31, 2024 | [983](https://leetcode.com/problems/minimum-cost-for-tickets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/983) | 🟡 Medium | + +
+ +
+Problems from November, 2024 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| November 1, 2024 | [1957](https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1957) | 🟢 Easy | +| November 2, 2024 | [2490](https://leetcode.com/problems/circular-sentence/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2490) | 🟢 Easy | +| November 3, 2024 | [796](https://leetcode.com/problems/rotate-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/796) | 🟢 Easy | +| November 4, 2024 | [3163](https://leetcode.com/problems/string-compression-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3163) | 🟡 Medium | +| November 5, 2024 | [2914](https://leetcode.com/problems/minimum-number-of-changes-to-make-binary-string-beautiful/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2914) | 🟡 Medium | +| November 6, 2024 | [3011](https://leetcode.com/problems/find-if-array-can-be-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3011) | 🟡 Medium | +| November 7, 2024 | [2275](https://leetcode.com/problems/largest-combination-with-bitwise-and-greater-than-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2275) | 🟡 Medium | +| November 8, 2024 | [1829](https://leetcode.com/problems/maximum-xor-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1829) | 🟡 Medium | +| November 9, 2024 | [3133](https://leetcode.com/problems/minimum-array-end/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3133) | 🟡 Medium | +| November 10, 2024 | [3097](https://leetcode.com/problems/shortest-subarray-with-or-at-least-k-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3097) | 🟡 Medium | +| November 11, 2024 | [2601](https://leetcode.com/problems/prime-subtraction-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2601) | 🟡 Medium | +| November 12, 2024 | [2070](https://leetcode.com/problems/most-beautiful-item-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2070) | 🟡 Medium | +| November 13, 2024 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium | +| November 14, 2024 | [2064](https://leetcode.com/problems/minimized-maximum-of-products-distributed-to-any-store/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2064) | 🟡 Medium | +| November 15, 2024 | [1574](https://leetcode.com/problems/shortest-subarray-to-be-removed-to-make-array-sorted/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1574) | 🟡 Medium | +| November 16, 2024 | [3254](https://leetcode.com/problems/find-the-power-of-k-size-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3254) | 🟡 Medium | +| November 17, 2024 | [862](https://leetcode.com/problems/shortest-subarray-with-sum-at-least-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/862) | 🔴 Hard | +| November 18, 2024 | [1652](https://leetcode.com/problems/defuse-the-bomb/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1652) | 🟢 Easy | +| November 19, 2024 | [2461](https://leetcode.com/problems/maximum-sum-of-distinct-subarrays-with-length-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2461) | 🟡 Medium | +| November 20, 2024 | [2516](https://leetcode.com/problems/take-k-of-each-character-from-left-and-right/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2516) | 🟡 Medium | +| November 21, 2024 | [2257](https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2257) | 🟡 Medium | +| November 22, 2024 | [1072](https://leetcode.com/problems/flip-columns-for-maximum-number-of-equal-rows/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1072) | 🟡 Medium | +| November 23, 2024 | [1861](https://leetcode.com/problems/rotating-the-box/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1861) | 🟡 Medium | +| November 24, 2024 | [1975](https://leetcode.com/problems/maximum-matrix-sum/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1975) | 🟡 Medium | +| November 25, 2024 | [773](https://leetcode.com/problems/sliding-puzzle/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/773) | 🔴 Hard | +| November 26, 2024 | [2924](https://leetcode.com/problems/find-champion-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2924) | 🟡 Medium | +| November 27, 2024 | [3243](https://leetcode.com/problems/shortest-distance-after-road-addition-queries-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3243) | 🟡 Medium | +| November 28, 2024 | [2290](https://leetcode.com/problems/minimum-obstacle-removal-to-reach-corner/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2290) | 🔴 Hard | +| November 29, 2024 | [2577](https://leetcode.com/problems/minimum-time-to-visit-a-cell-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2577) | 🔴 Hard | +| November 30, 2024 | [2097](https://leetcode.com/problems/valid-arrangement-of-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2097) | 🔴 Hard | + +
+ +
+Problems from October, 2024 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| October 1, 2024 | [1497](https://leetcode.com/problems/check-if-array-pairs-are-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1497) | 🟡 Medium | +| October 2, 2024 | [1331](https://leetcode.com/problems/rank-transform-of-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1331) | 🟢 Easy | +| October 3, 2024 | [1590](https://leetcode.com/problems/make-sum-divisible-by-p/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1590) | 🟡 Medium | +| October 4, 2024 | [2491](https://leetcode.com/problems/divide-players-into-teams-of-equal-skill/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2491) | 🟡 Medium | +| October 5, 2024 | [567](https://leetcode.com/problems/permutation-in-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/567) | 🟡 Medium | +| October 6, 2024 | [1813](https://leetcode.com/problems/sentence-similarity-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1813) | 🟡 Medium | +| October 7, 2024 | [2696](https://leetcode.com/problems/minimum-string-length-after-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2696) | 🟢 Easy | +| October 8, 2024 | [1963](https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-string-balanced/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1963) | 🟡 Medium | +| October 9, 2024 | [921](https://leetcode.com/problems/minimum-add-to-make-parentheses-valid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/921) | 🟡 Medium | +| October 10, 2024 | [962](https://leetcode.com/problems/maximum-width-ramp/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/962) | 🟡 Medium | +| October 11, 2024 | [1942](https://leetcode.com/problems/the-number-of-the-smallest-unoccupied-chair/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1942) | 🟡 Medium | +| October 12, 2024 | [2406](https://leetcode.com/problems/divide-intervals-into-minimum-number-of-groups/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2406) | 🟡 Medium | +| October 13, 2024 | [632](https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/632) | 🔴 Hard | +| October 14, 2024 | [2530](https://leetcode.com/problems/maximal-score-after-applying-k-operations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2530) | 🟡 Medium | +| October 15, 2024 | [2938](https://leetcode.com/problems/separate-black-and-white-balls/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2938) | 🟡 Medium | +| October 16, 2024 | [1405](https://leetcode.com/problems/longest-happy-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1405) | 🟡 Medium | +| October 17, 2024 | [670](https://leetcode.com/problems/maximum-swap/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/670) | 🟡 Medium | +| October 18, 2024 | [2044](https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2044) | 🟡 Medium | +| October 19, 2024 | [1545](https://leetcode.com/problems/find-kth-bit-in-nth-binary-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1545) | 🟡 Medium | +| October 20, 2024 | [1106](https://leetcode.com/problems/parsing-a-boolean-expression/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1106) | 🔴 Hard | +| October 21, 2024 | [1593](https://leetcode.com/problems/split-a-string-into-the-max-number-of-unique-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1593) | 🟡 Medium | +| October 22, 2024 | [2583](https://leetcode.com/problems/kth-largest-sum-in-a-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2583) | 🟡 Medium | +| October 23, 2024 | [2641](https://leetcode.com/problems/cousins-in-binary-tree-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2641) | 🟡 Medium | +| October 24, 2024 | [951](https://leetcode.com/problems/flip-equivalent-binary-trees/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/951) | 🟡 Medium | +| October 25, 2024 | [1233](https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1233) | 🟡 Medium | +| October 26, 2024 | [2458](https://leetcode.com/problems/height-of-binary-tree-after-subtree-removal-queries/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2458) | 🔴 Hard | +| October 27, 2024 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium | +| October 28, 2024 | [2501](https://leetcode.com/problems/longest-square-streak-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2501) | 🟡 Medium | +| October 29, 2024 | [2684](https://leetcode.com/problems/maximum-number-of-moves-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2684) | 🟡 Medium | +| October 30, 2024 | [1671](https://leetcode.com/problems/minimum-number-of-removals-to-make-mountain-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1671) | 🔴 Hard | +| October 31, 2024 | [2463](https://leetcode.com/problems/minimum-total-distance-traveled/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2463) | 🔴 Hard | + +
+ +
+Problems from September, 2024 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| September 1, 2024 | [2022](https://leetcode.com/problems/convert-1d-array-into-2d-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2022) | 🟢 Easy | +| September 2, 2024 | [1894](https://leetcode.com/problems/find-the-student-that-will-replace-the-chalk/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1894) | 🟡 Medium | +| September 3, 2024 | [1945](https://leetcode.com/problems/sum-of-digits-of-string-after-convert/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1945) | 🟢 Easy | +| September 4, 2024 | [874](https://leetcode.com/problems/walking-robot-simulation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/874) | 🟡 Medium | +| September 5, 2024 | [2028](https://leetcode.com/problems/find-missing-observations/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2028) | 🟡 Medium | +| September 6, 2024 | [3217](https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3217) | 🟡 Medium | +| September 7, 2024 | [1367](https://leetcode.com/problems/linked-list-in-binary-tree/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1367) | 🟡 Medium | +| September 8, 2024 | [725](https://leetcode.com/problems/split-linked-list-in-parts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/725) | 🟡 Medium | +| September 9, 2024 | [2326](https://leetcode.com/problems/spiral-matrix-iv/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2326) | 🟡 Medium | +| September 10, 2024 | [2807](https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2807) | 🟡 Medium | +| September 11, 2024 | [2220](https://leetcode.com/problems/minimum-bit-flips-to-convert-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2220) | 🟢 Easy | +| September 12, 2024 | [1684](https://leetcode.com/problems/count-the-number-of-consistent-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1684) | 🟢 Easy | +| September 13, 2024 | [1310](https://leetcode.com/problems/xor-queries-of-a-subarray/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1310) | 🟡 Medium | +| September 14, 2024 | [2419](https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2419) | 🟡 Medium | +| September 15, 2024 | [1371](https://leetcode.com/problems/find-the-longest-substring-containing-vowels-in-even-counts/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1371) | 🟡 Medium | +| September 16, 2024 | [539](https://leetcode.com/problems/minimum-time-difference/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/539) | 🟡 Medium | +| September 17, 2024 | [884](https://leetcode.com/problems/uncommon-words-from-two-sentences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/884) | 🟢 Easy | +| September 18, 2024 | [179](https://leetcode.com/problems/largest-number/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/179) | 🟡 Medium | +| September 19, 2024 | [241](https://leetcode.com/problems/different-ways-to-add-parentheses/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/241) | 🟡 Medium | +| September 20, 2024 | [214](https://leetcode.com/problems/shortest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/214) | 🔴 Hard | +| September 21, 2024 | [386](https://leetcode.com/problems/lexicographical-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/386) | 🟡 Medium | +| September 22, 2024 | [440](https://leetcode.com/problems/k-th-smallest-in-lexicographical-order/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/440) | 🔴 Hard | +| September 23, 2024 | [2707](https://leetcode.com/problems/extra-characters-in-a-string/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2707) | 🟡 Medium | +| September 24, 2024 | [3043](https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3043) | 🟡 Medium | +| September 25, 2024 | [2416](https://leetcode.com/problems/sum-of-prefix-scores-of-strings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2416) | 🔴 Hard | +| September 26, 2024 | [729](https://leetcode.com/problems/my-calendar-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/729) | 🟡 Medium | +| September 27, 2024 | [731](https://leetcode.com/problems/my-calendar-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/731) | 🟡 Medium | +| September 28, 2024 | [641](https://leetcode.com/problems/design-circular-deque/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/641) | 🟡 Medium | +| September 29, 2024 | [432](https://leetcode.com/problems/all-oone-data-structure/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/432) | 🔴 Hard | +| September 30, 2024 | [1381](https://leetcode.com/problems/design-a-stack-with-increment-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1381) | 🟡 Medium | + +
+ +
+Problems from August, 2024 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| August 1, 2024 | [2678](https://leetcode.com/problems/number-of-senior-citizens/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2678) | 🟢 Easy | +| August 2, 2024 | [2134](https://leetcode.com/problems/minimum-swaps-to-group-all-1s-together-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2134) | 🟡 Medium | +| August 3, 2024 | [1460](https://leetcode.com/problems/make-two-arrays-equal-by-reversing-subarrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1460) | 🟢 Easy | +| August 4, 2024 | [1508](https://leetcode.com/problems/range-sum-of-sorted-subarray-sums/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1508) | 🟡 Medium | +| August 5, 2024 | [2053](https://leetcode.com/problems/kth-distinct-string-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2053) | 🟢 Easy | +| August 6, 2024 | [3016](https://leetcode.com/problems/minimum-number-of-pushes-to-type-word-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3016) | 🟡 Medium | +| August 7, 2024 | [273](https://leetcode.com/problems/integer-to-english-words/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/273) | 🔴 Hard | +| August 8, 2024 | [885](https://leetcode.com/problems/spiral-matrix-iii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/885) | 🟡 Medium | +| August 9, 2024 | [840](https://leetcode.com/problems/magic-squares-in-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/840) | 🟡 Medium | +| August 10, 2024 | [959](https://leetcode.com/problems/regions-cut-by-slashes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/959) | 🟡 Medium | +| August 11, 2024 | [1568](https://leetcode.com/problems/minimum-number-of-days-to-disconnect-island/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1568) | 🔴 Hard | +| August 12, 2024 | [703](https://leetcode.com/problems/kth-largest-element-in-a-stream/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/703) | 🟢 Easy | +| August 13, 2024 | [40](https://leetcode.com/problems/combination-sum-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/40) | 🟡 Medium | +| August 14, 2024 | [719](https://leetcode.com/problems/find-k-th-smallest-pair-distance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/719) | 🔴 Hard | +| August 15, 2024 | [860](https://leetcode.com/problems/lemonade-change/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/860) | 🟢 Easy | +| August 16, 2024 | [624](https://leetcode.com/problems/maximum-distance-in-arrays/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/624) | 🟡 Medium | +| August 17, 2024 | [1937](https://leetcode.com/problems/maximum-number-of-points-with-cost/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1937) | 🟡 Medium | +| August 18, 2024 | [264](https://leetcode.com/problems/ugly-number-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/264) | 🟡 Medium | +| August 19, 2024 | [650](https://leetcode.com/problems/2-keys-keyboard/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/650) | 🟡 Medium | +| August 20, 2024 | [1140](https://leetcode.com/problems/stone-game-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1140) | 🟡 Medium | +| August 21, 2024 | [664](https://leetcode.com/problems/strange-printer/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/664) | 🔴 Hard | +| August 22, 2024 | [476](https://leetcode.com/problems/number-complement/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/476) | 🟢 Easy | +| August 23, 2024 | [592](https://leetcode.com/problems/fraction-addition-and-subtraction/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/592) | 🟡 Medium | +| August 24, 2024 | [564](https://leetcode.com/problems/find-the-closest-palindrome/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/564) | 🔴 Hard | +| August 25, 2024 | [145](https://leetcode.com/problems/binary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/145) | 🟢 Easy | +| August 26, 2024 | [590](https://leetcode.com/problems/n-ary-tree-postorder-traversal/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/590) | 🟢 Easy | +| August 27, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | +| August 28, 2024 | [1905](https://leetcode.com/problems/count-sub-islands/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1905) | 🟡 Medium | +| August 29, 2024 | [947](https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/947) | 🟡 Medium | +| August 30, 2024 | [2699](https://leetcode.com/problems/modify-graph-edge-weights/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2699) | 🔴 Hard | +| August 31, 2024 | [1514](https://leetcode.com/problems/path-with-maximum-probability/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1514) | 🟡 Medium | + +
+ +
+Problems from July, 2024 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| July 1, 2024 | [1550](https://leetcode.com/problems/three-consecutive-odds/description/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1550) | 🟢 Easy | +| July 2, 2024 | [350](https://leetcode.com/problems/intersection-of-two-arrays-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/350) | 🟢 Easy | +| July 3, 2024 | [1509](https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1509) | 🟡 Medium | +| July 4, 2024 | [2181](https://leetcode.com/problems/merge-nodes-in-between-zeros/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2181) | 🟡 Medium | +| July 5, 2024 | [2058](https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2058) | 🟡 Medium | +| July 6, 2024 | [2582](https://leetcode.com/problems/pass-the-pillow/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2582) | 🟢 Easy | +| July 7, 2024 | [1518](https://leetcode.com/problems/water-bottles/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1518) | 🟢 Easy | +| July 8, 2024 | [1823](https://leetcode.com/problems/find-the-winner-of-the-circular-game/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1823) | 🟡 Medium | +| July 9, 2024 | [1701](https://leetcode.com/problems/average-waiting-time/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1701) | 🟡 Medium | +| July 10, 2024 | [1598](https://leetcode.com/problems/crawler-log-folder/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1598) | 🟢 Easy | +| July 11, 2024 | [1190](https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1190) | 🟡 Medium | +| July 12, 2024 | [1717](https://leetcode.com/problems/maximum-score-from-removing-substrings/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1717) | 🟡 Medium | +| July 13, 2024 | [2751](https://leetcode.com/problems/robot-collisions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2751) | 🔴 Hard | +| July 14, 2024 | [726](https://leetcode.com/problems/number-of-atoms/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/726) | 🔴 Hard | +| July 15, 2024 | [2196](https://leetcode.com/problems/create-binary-tree-from-descriptions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2196) | 🟡 Medium | +| July 16, 2024 | [2096](https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2096) | 🟡 Medium | +| July 17, 2024 | [1110](https://leetcode.com/problems/delete-nodes-and-return-forest/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1110) | 🟡 Medium | +| July 18, 2024 | [1530](https://leetcode.com/problems/number-of-good-leaf-nodes-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1530) | 🟡 Medium | +| July 19, 2024 | [1380](https://leetcode.com/problems/lucky-numbers-in-a-matrix/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1380) | 🟢 Easy | +| July 20, 2024 | [1605](https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1605) | 🟡 Medium | +| July 21, 2024 | [2392](https://leetcode.com/problems/build-a-matrix-with-conditions/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2392) | 🔴 Hard | +| July 22, 2024 | [2418](https://leetcode.com/problems/sort-the-people/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2418) | 🟢 Easy | +| July 23, 2024 | [1636](https://leetcode.com/problems/sort-array-by-increasing-frequency/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1636) | 🟢 Easy | +| July 24, 2024 | [2191](https://leetcode.com/problems/sort-the-jumbled-numbers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2191) | 🟡 Medium | +| July 25, 2024 | [912](https://leetcode.com/problems/sort-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/912) | 🟡 Medium | +| July 26, 2024 | [1334](https://leetcode.com/problems/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1334) | 🟡 Medium | +| July 27, 2024 | [2976](https://leetcode.com/problems/minimum-cost-to-convert-string-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2976) | 🟡 Medium | +| July 28, 2024 | [2045](https://leetcode.com/problems/second-minimum-time-to-reach-destination/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2045) | 🔴 Hard | +| July 29, 2024 | [1395](https://leetcode.com/problems/count-number-of-teams/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1395) | 🟡 Medium | +| July 30, 2024 | [1653](https://leetcode.com/problems/minimum-deletions-to-make-string-balanced/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1653) | 🟡 Medium | +| July 31, 2024 | [1105](https://leetcode.com/problems/filling-bookcase-shelves/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1105) | 🟡 Medium | + +
# Join our discussion! diff --git a/migrate_readme_format.py b/migrate_readme_format.py new file mode 100644 index 0000000..d72320c --- /dev/null +++ b/migrate_readme_format.py @@ -0,0 +1,122 @@ +#!/usr/bin/env python3 +""" +One-time migration script to convert the README table to collapsible month sections. +""" + +import re +from datetime import datetime +from collections import defaultdict + +readme_file = "README.md" + +def parse_date(date_str): + """Parse date string and return datetime object and (year, month) tuple.""" + try: + dt = datetime.strptime(date_str, '%B %d, %Y') + return dt, (dt.year, dt.month) + except: + return None, None + +def format_month_year(year, month): + """Format month and year as 'Month, Year'.""" + return datetime(year, month, 1).strftime('%B, %Y') + +def parse_table_entries(lines): + """Parse existing table entries and group them by month.""" + entries_by_month = defaultdict(list) + table_pattern = re.compile(r'^\| (.+?) \| (.+?) \| (.+?) \| (.+?) \|') + + for line in lines: + line = line.strip() + if not line or line.startswith('|---') or line.startswith('| 📆'): + continue + + match = table_pattern.match(line) + if match: + date_str = match.group(1).strip() + dt, month_key = parse_date(date_str) + if month_key: + entries_by_month[month_key].append(line) + + return entries_by_month + +def generate_collapsible_sections(entries_by_month): + """Generate HTML collapsible sections for each month.""" + sections = [] + + # Sort months in descending order (most recent first) + sorted_months = sorted(entries_by_month.keys(), reverse=True) + + # Get the most recent month to keep it open + current_month_key = sorted_months[0] if sorted_months else None + + table_header = """| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------|""" + + for month_key in sorted_months: + year, month = month_key + month_name = format_month_year(year, month) + entries = entries_by_month[month_key] + + # Only the current month should be open + open_attr = ' open' if month_key == current_month_key else '' + + sections.append(f'') + sections.append(f'Problems from {month_name}') + sections.append('') + sections.append(table_header) + + for entry in entries: + sections.append(entry) + + sections.append('') + sections.append('
') + sections.append('') + + return '\n'.join(sections) + +# Read the entire README file +with open(readme_file, 'r') as file: + lines = file.readlines() + +# Initialize variables to store parts of the README +before_table = [] +table_content = [] +after_table = [] +in_table_section = False + +# Process the README line by line +for line in lines: + if "Problems we've attempted so far:" in line: + in_table_section = True + before_table.append(line) + elif "# Join our discussion!" in line: + in_table_section = False + after_table.append(line) + elif in_table_section: + table_content.append(line) + else: + if table_content: + after_table.append(line) + else: + before_table.append(line) + +# Parse existing table entries +entries_by_month = parse_table_entries(table_content) + +print(f"Found {len(entries_by_month)} months of data") +for month_key in sorted(entries_by_month.keys(), reverse=True): + year, month = month_key + print(f" {format_month_year(year, month)}: {len(entries_by_month[month_key])} problems") + +# Generate collapsible sections +formatted_table = generate_collapsible_sections(entries_by_month) + +# Rebuild the README with collapsible sections +updated_readme = ''.join(before_table) + '\n' + formatted_table + '\n' + ''.join(after_table) + +# Overwrite the README file with the updated content +with open(readme_file, 'w') as file: + file.write(updated_readme) + +print("\nREADME file successfully migrated to collapsible month sections!") diff --git a/update_readme.py b/update_readme.py index 88df512..d7368e4 100644 --- a/update_readme.py +++ b/update_readme.py @@ -1,6 +1,8 @@ import requests import json from datetime import datetime +import re +from collections import defaultdict # Set variables date_str = datetime.now().strftime('%B %-d, %Y') @@ -23,6 +25,69 @@ "operationName": "questionOfToday" } +def parse_date(date_str): + """Parse date string and return datetime object and (year, month) tuple.""" + try: + dt = datetime.strptime(date_str, '%B %d, %Y') + return dt, (dt.year, dt.month) + except: + return None, None + +def format_month_year(year, month): + """Format month and year as 'Month, Year'.""" + return datetime(year, month, 1).strftime('%B, %Y') + +def parse_table_entries(lines): + """Parse existing table entries and group them by month.""" + entries_by_month = defaultdict(list) + table_pattern = re.compile(r'^\| (.+?) \| (.+?) \| (.+?) \| (.+?) \|') + + for line in lines: + line = line.strip() + if not line or line.startswith('|---') or line.startswith('| 📆'): + continue + + match = table_pattern.match(line) + if match: + date_str = match.group(1).strip() + dt, month_key = parse_date(date_str) + if month_key: + entries_by_month[month_key].append(line) + + return entries_by_month + +def generate_collapsible_sections(entries_by_month, current_month_key): + """Generate HTML collapsible sections for each month.""" + sections = [] + + # Sort months in descending order (most recent first) + sorted_months = sorted(entries_by_month.keys(), reverse=True) + + table_header = """| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------|""" + + for month_key in sorted_months: + year, month = month_key + month_name = format_month_year(year, month) + entries = entries_by_month[month_key] + + # Only the current month should be open + open_attr = ' open' if month_key == current_month_key else '' + + sections.append(f'') + sections.append(f'Problems from {month_name}') + sections.append('') + sections.append(table_header) + + for entry in entries: + sections.append(entry) + + sections.append('') + sections.append('') + sections.append('') + + return '\n'.join(sections) + # Fetch daily challenge details from API response = requests.post(leetcode_api_url, json=daily_challenge_query) data = response.json() @@ -51,6 +116,9 @@ # Create the new entry new_entry = f"| {date_str} | [{problem_id}]({link}) | [Click here]({note_link}) | {difficulty_icon} {difficulty} |" + # Parse current date to get month key + current_dt, current_month_key = parse_date(date_str) + # Read the entire README file with open(readme_file, 'r') as file: lines = file.readlines() @@ -77,17 +145,23 @@ else: before_table.append(line) - # Strip trailing whitespace from the last row of the table content - if table_content: - table_content[-1] = table_content[-1].rstrip() + # Parse existing table entries + entries_by_month = parse_table_entries(table_content) + + # Add the new entry to the appropriate month + if current_month_key: + entries_by_month[current_month_key].append(new_entry) + + # Generate collapsible sections + formatted_table = generate_collapsible_sections(entries_by_month, current_month_key) - # Rebuild the README with the new entry added to the table - updated_readme = before_table + table_content + [new_entry + '\n\n'] + after_table + # Rebuild the README with collapsible sections + updated_readme = ''.join(before_table) + '\n' + formatted_table + '\n' + ''.join(after_table) # Overwrite the README file with the updated content with open(readme_file, 'w') as file: - file.writelines(updated_readme) + file.write(updated_readme) - print("README file updated successfully!") + print("README file updated successfully with collapsible month sections!") else: print("Error: Unexpected response structure.") From d970fee3cb228999e5e7cea6da95fa6c2c949672 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 6 Nov 2025 13:13:13 +0000 Subject: [PATCH 522/573] Add documentation to clarify collapsible section behavior Document how the script handles: - Reverse chronological month ordering - Auto-collapse of previous months when new month starts - Chronological order within each month --- update_readme.py | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/update_readme.py b/update_readme.py index d7368e4..a3bbd9d 100644 --- a/update_readme.py +++ b/update_readme.py @@ -57,7 +57,15 @@ def parse_table_entries(lines): return entries_by_month def generate_collapsible_sections(entries_by_month, current_month_key): - """Generate HTML collapsible sections for each month.""" + """ + Generate HTML collapsible sections for each month. + + Behavior: + - Months are displayed in reverse chronological order (newest first) + - Only the current month is expanded (has 'open' attribute) + - On the first day of a new month, the previous month automatically closes + - Entries within each month remain in chronological order + """ sections = [] # Sort months in descending order (most recent first) From 583f1b7bb0bdf928003d9a55e5679fff66b4db22 Mon Sep 17 00:00:00 2001 From: "Jeremy R. Manning" Date: Thu, 6 Nov 2025 08:23:42 -0500 Subject: [PATCH 523/573] Revise README for auto-solver and group status Updated the README to reflect the addition of an automatic solver using OpenAI's GPT-5-mini and removed the note about the group taking a break from LeetCode. --- README.md | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/README.md b/README.md index 853b05b..358cad4 100644 --- a/README.md +++ b/README.md @@ -4,11 +4,9 @@ Each day (ideally) we'll attempt the daily [leetcode](https://leetcode.com) prob -_**Note:** Our group is currently taking a break from grinding leetcode. The table below will continue to update automatically, but newer problems likey won't have their solutions provided. Pull requests will still be supported and reviewed if others would like to contribute solutions._ +## Auto-solver 🤖 -## 🤖 Auto-Solver - -We've added an automatic solver that uses OpenAI's GPT-5-mini to generate solutions for each day's problem! Every day at 00:01 UTC, the system automatically: +As of [November 5, 2025](https://en.wikipedia.org/wiki/Guy_Fawkes_Night), we've added an automatic solver that uses OpenAI's [GPT-5-mini](https://platform.openai.com/docs/models/gpt-5-mini) to generate solutions for each day's problem! Every day at 00:01 UTC, the system automatically: - Fetches the daily LeetCode problem - Generates a thoughtful solution with explanations - Commits the solution as `gpt5-mini.md` in the problem's folder From cd8a663b6f31a0c1f4d8d47f448e02c7a6a38dd8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 7 Nov 2025 00:20:41 +0000 Subject: [PATCH 524/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/2528/gpt5-mini.md | 98 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 problems/2528/gpt5-mini.md diff --git a/problems/2528/gpt5-mini.md b/problems/2528/gpt5-mini.md new file mode 100644 index 0000000..c60f6d6 --- /dev/null +++ b/problems/2528/gpt5-mini.md @@ -0,0 +1,98 @@ +# [Problem 2528: Maximize the Minimum Powered City](https://leetcode.com/problems/maximize-the-minimum-powered-city/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We need to maximize the minimum "power" across all cities after adding up to k stations. Each station contributes to a contiguous window of length 2*r+1 around its position. The problem smells like a binary-search-on-answer: for a candidate minimum power X, check if we can, with ≤ k added stations, make every city's power at least X. + +To check feasibility for X we need to know each city's current power from existing stations (a sliding window sum). Then we must decide where to place additional stations greedily so each city meets X. A common greedy: sweep left-to-right, keep track of extra contribution from stations we already placed (use a difference array to expire contributions), and when the current city is under X, place enough stations at the rightmost position that still covers this city (i + r, capped by n-1). Placing them as far right as possible maximizes their future effect. Update the diff/ending index so recorded extra contributions expire appropriately. + +So plan: +- Compute base power for each city via prefix sums (sliding window). +- Binary search answer in [0, sum(stations) + k]. +- For each mid, simulate greedy check with diff array in O(n). + +Careful with indices for "expiry" of added station contributions: if we place at pos = min(n-1, i + r), a station there covers cities from pos - r to pos + r. When pos = i + r (the common case), the coverage on the sweep starting at i is from i to i + 2r, so expiry index is i + 2r + 1. Cap by n. + +## Refining the problem, round 2 thoughts +Edge cases: +- r = 0: each station affects only its own city; check reduces to raising individual values. +- Very large k (up to 1e9) — must use 64-bit arithmetic for counts. +- n up to 1e5, station values up to 1e5 => sum(stations) up to 1e10; sums and high bounds must be stored in Python ints (fine). +- Binary search upper bound: sum(stations) + k is safe (no city can get more than all stations). +- Time: O(n log(sumS + k)) which is fine (~1e5 * ~40). + +Implementation details: +- Compute base array using prefix sums: base[i] = prefix[min(n-1, i+r)] - prefix[max(0, i-r)-1] +- In feasibility check: + - Use diff array of length n (all zeros). + - running_added = 0 + - For each i: running_added += diff[i]; curr = base[i] + running_added + - If curr < mid: need = mid - curr; if need > remaining_k -> fail; else remaining_k -= need; running_added += need; end = min(n-1, i + 2*r); if end + 1 < n: diff[end+1] -= need +- Return True if loop completes. + +Complexities: +- Precompute base: O(n) +- Each check: O(n) +- Binary search iterations: O(log(sumS + k)) up to ~40 +- Total: O(n log(sumS + k)) time, O(n) extra space. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def maxPower(self, stations: List[int], r: int, k: int) -> int: + n = len(stations) + # prefix sums + prefix = [0] * n + prefix[0] = stations[0] + for i in range(1, n): + prefix[i] = prefix[i-1] + stations[i] + # compute base power for each city: sum of stations in [i-r, i+r] + base = [0] * n + for i in range(n): + left = max(0, i - r) + right = min(n - 1, i + r) + base[i] = prefix[right] - (prefix[left - 1] if left > 0 else 0) + + total_existing = prefix[-1] + lo, hi = 0, total_existing + k # inclusive upper bound + + def can_achieve(target: int) -> bool: + # difference array to manage added station contributions + diff = [0] * (n + 1) # one extra for easier expiry handling + running_added = 0 + remaining = k + for i in range(n): + running_added += diff[i] + curr = base[i] + running_added + if curr < target: + need = target - curr + if need > remaining: + return False + remaining -= need + running_added += need + # place these 'need' stations at position pos = min(n-1, i + r) + # their coverage ends at end = min(n-1, pos + r) + # For pos = min(n-1, i + r), this end is min(n-1, i + 2*r) + end = min(n - 1, i + 2 * r) + # subtract from diff at end+1 to expire their effect + if end + 1 < len(diff): + diff[end + 1] -= need + # continue + return True + + ans = 0 + while lo <= hi: + mid = (lo + hi) // 2 + if can_achieve(mid): + ans = mid + lo = mid + 1 + else: + hi = mid - 1 + return ans +``` +- Notes: + - We compute base city powers using prefix sums in O(n). + - The binary search tries candidate minimum powers; each feasibility check simulates greedy placements using a difference array to amortize added contributions. Each check is O(n). + - Time complexity: O(n log(sum(stations) + k)). Space complexity: O(n) for base and diff arrays. + - The greedy choice (placing needed stations at the rightmost position that still covers the current city) maximizes future benefit and is correct when sweeping left-to-right. \ No newline at end of file From e0b0f30023437ac7a2e3a31fa5e36036e11a3317 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 7 Nov 2025 00:35:50 +0000 Subject: [PATCH 525/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 358cad4..a4d5180 100644 --- a/README.md +++ b/README.md @@ -26,6 +26,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 4, 2025 | [3318](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3318) | 🟢 Easy | | November 5, 2025 | [3321](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3321) | 🔴 Hard | | November 6, 2025 | [3607](https://leetcode.com/problems/power-grid-maintenance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3607) | 🟡 Medium | +| November 7, 2025 | [2528](https://leetcode.com/problems/maximize-the-minimum-powered-city/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2528) | 🔴 Hard | From 6783e453574f6096e30d1078acbcfa904b64e18b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 8 Nov 2025 00:18:34 +0000 Subject: [PATCH 526/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/1611/gpt5-mini.md | 50 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 problems/1611/gpt5-mini.md diff --git a/problems/1611/gpt5-mini.md b/problems/1611/gpt5-mini.md new file mode 100644 index 0000000..ca303b3 --- /dev/null +++ b/problems/1611/gpt5-mini.md @@ -0,0 +1,50 @@ +# [Problem 1611: Minimum One Bit Operations to Make Integers Zero](https://leetcode.com/problems/minimum-one-bit-operations-to-make-integers-zero/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +This problem describes constrained bit flips: you can flip bit 0 anytime; you can flip bit i (>0) only when bit (i-1) == 1 and bits (i-2)..0 == 0. It smells like a structured traversal of the space of k-bit states (like a Gray-code / reflected sequence or a Tower-of-Hanoi style sequence). The question asks for minimum number of operations to go from n to 0, so we want the shortest path length in that graph. + +A direct BFS is possible for small bit-length, but n can be up to 1e9 (≈30 bits) and BFS over 2^30 states is impractical. The structure suggests a recursive/reflective property: top-half states (those with highest bit set) often have distances related to distances of their low-half counterpart in a mirrored way. + +I suspect there's a simple recurrence based on the highest set bit: split n into high bit 2^k and remainder r = n - 2^k, and express result for n in terms of result for r (or of a reflected index). Try to find that recursion. + +## Refining the problem, round 2 thoughts +Work out small cases by hand to observe pattern: +- g(0)=0 +- g(1)=1 +- g(2)=3 +- g(3)=2 +- g(4)=7 +- g(5)=6 +- g(6)=4 +- g(7)=5 + +From these values, the top-half (numbers with highest bit 1) appear to be the mirror of the bottom-half under (2^{k+1}-1) complement. For numbers in range [2^k, 2^{k+1}-1], the formula seems to be: +g(n) = (2^{k+1}-1) - g(n - 2^k) + +This recurrence fits all small examples and reduces the problem size (n - 2^k has smaller bit-length). Depth is at most number of bits (~30), so recursion is safe. We can memoize or rely on the small recursion depth. Time complexity O(bits) per call with memoization giving O(bits) overall, space O(bits) for recursion/memo. + +I'll implement a concise recursive solution with caching. + +## Attempted solution(s) +```python +from functools import lru_cache + +class Solution: + def minimumOneBitOperations(self, n: int) -> int: + @lru_cache(None) + def g(x: int) -> int: + if x == 0: + return 0 + k = x.bit_length() - 1 # highest set bit position + high = 1 << k + # reflect relative to full mask of current bit-length + mask = (1 << (k + 1)) - 1 + return mask - g(x - high) + return g(n) +``` +- Notes about the solution approach: + - We use the recurrence g(0) = 0. For n > 0, let k be the highest bit index and high = 2^k. Then: + g(n) = (2^{k+1} - 1) - g(n - 2^k). + Intuition: states in the top half (with highest bit set) are a mirrored/reflected sequence of the bottom half; the minimal steps mirror accordingly. + - Complexity: Each recursive step reduces the bit-length, so there are at most O(B) recursive calls where B = number of bits in n (≤ 30). With memoization the cost is O(B) time and O(B) space. + - Implementation details: We use Python's bit_length to find k and a small LRU cache to avoid recomputation. \ No newline at end of file From 8524dfcf86f689a5d4e8214e0500c9fe4c0f7dc2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 8 Nov 2025 00:33:16 +0000 Subject: [PATCH 527/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a4d5180..8ac3643 100644 --- a/README.md +++ b/README.md @@ -27,6 +27,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 5, 2025 | [3321](https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3321) | 🔴 Hard | | November 6, 2025 | [3607](https://leetcode.com/problems/power-grid-maintenance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3607) | 🟡 Medium | | November 7, 2025 | [2528](https://leetcode.com/problems/maximize-the-minimum-powered-city/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2528) | 🔴 Hard | +| November 8, 2025 | [1611](https://leetcode.com/problems/minimum-one-bit-operations-to-make-integers-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1611) | 🔴 Hard | From bee254db3a08142be5f5e0734327e7e335e8df35 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 9 Nov 2025 00:20:41 +0000 Subject: [PATCH 528/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/2169/gpt5-mini.md | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 problems/2169/gpt5-mini.md diff --git a/problems/2169/gpt5-mini.md b/problems/2169/gpt5-mini.md new file mode 100644 index 0000000..15cbf39 --- /dev/null +++ b/problems/2169/gpt5-mini.md @@ -0,0 +1,31 @@ +# [Problem 2169: Count Operations to Obtain Zero](https://leetcode.com/problems/count-operations-to-obtain-zero/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +The problem describes repeatedly subtracting the smaller number from the larger until one becomes zero. The naive idea is to simulate the process: in each operation check which is larger and subtract. That would work but could be slow if one number is much larger than the other (many repeated subtractions). This pattern is exactly what the Euclidean algorithm's repeated-subtraction version does to compute gcd. We can compress multiple repeated subtractions into a single step using integer division: when a >= b > 0, subtracting b from a repeatedly is equivalent to doing a //= b times and then a %= b, adding a // b to the operation count. + +Edge cases: if either number is zero initially return 0; equal numbers result in one operation. + +## Refining the problem, round 2 thoughts +So the efficient approach is to loop while both numbers are positive and at each step add the quotient (larger // smaller) to the count and reduce the larger number with modulo. This mimics repeated subtraction in O(number of Euclidean steps) which is O(log(min(num1, num2))) in practice. Need to ensure we don't divide by zero — guard with while a and b. Complexity is good for the given constraints (<= 1e5) but the approach scales much larger as well. + +## Attempted solution(s) +```python +class Solution: + def countOperations(self, num1: int, num2: int) -> int: + a, b = num1, num2 + ops = 0 + # While both are non-zero, compress repeated subtractions with division + while a and b: + if a >= b: + ops += a // b + a = a % b + else: + ops += b // a + b = b % a + return ops +``` +- Notes: + - Approach: simulate repeated subtraction but group many subtractions at once using integer division (quotient) and modulo to get the remainder — effectively the subtraction-based Euclidean algorithm. + - Time complexity: O(log(min(num1, num2))) in practice (number of division/mod steps similar to Euclidean algorithm). Each loop iteration uses O(1) arithmetic operations. + - Space complexity: O(1) extra space. + - Implementation details: loop guarded by "while a and b" to avoid division by zero. If either input is 0 initially, the function immediately returns 0. \ No newline at end of file From 7cf0e959a5f5f5ce6b0fbf0c66d9f66ec706c748 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 9 Nov 2025 00:38:01 +0000 Subject: [PATCH 529/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8ac3643..a4a0d35 100644 --- a/README.md +++ b/README.md @@ -28,6 +28,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 6, 2025 | [3607](https://leetcode.com/problems/power-grid-maintenance/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3607) | 🟡 Medium | | November 7, 2025 | [2528](https://leetcode.com/problems/maximize-the-minimum-powered-city/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2528) | 🔴 Hard | | November 8, 2025 | [1611](https://leetcode.com/problems/minimum-one-bit-operations-to-make-integers-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1611) | 🔴 Hard | +| November 9, 2025 | [2169](https://leetcode.com/problems/count-operations-to-obtain-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2169) | 🟢 Easy | From c86820abc071190984b678867cf70d6380b0f5a4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 10 Nov 2025 00:20:24 +0000 Subject: [PATCH 530/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/3542/gpt5-mini.md | 55 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 problems/3542/gpt5-mini.md diff --git a/problems/3542/gpt5-mini.md b/problems/3542/gpt5-mini.md new file mode 100644 index 0000000..f554b13 --- /dev/null +++ b/problems/3542/gpt5-mini.md @@ -0,0 +1,55 @@ +# [Problem 3542: Minimum Operations to Convert All Elements to Zero](https://leetcode.com/problems/minimum-operations-to-convert-all-elements-to-zero/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We can pick any subarray and set all occurrences of the minimum non-negative integer inside that subarray to 0. Zeros are special: if a subarray contains a 0, the minimum is 0 and the operation does nothing, so we never want to include zeros in an operation — zeros partition the array into independent segments. + +Within a non-zero segment, one operation can remove all entries equal to the minimum value of that chosen subarray. Intuitively, as we move left-to-right, when we see a value larger than the previous values we may need an operation for that new "level". When we see smaller values we can "pop" higher levels that won't be needed further. This smells like a monotonic stack approach where we count pushes of new positive values (distinct levels) and pop when encountering smaller numbers. Equal values do not require a new operation. + +I recall a known pattern: keep an increasing stack of positive values; zeros clear the stack; whenever current value v > 0 and is strictly greater than top, push and increment answer; if v < top, pop until top <= v; if after popping top != v and v > 0, push and increment. That should produce minimal operations. + +## Refining the problem, round 2 thoughts +- Zeros split the array into segments; operations never cross zeros because they'd be wasted on zeros. +- Within a segment, operations correspond to introducing new distinct positive "levels" as we traverse, with higher values that later get overshadowed by smaller ones removed by popping. +- Duplicate adjacent values should not add operations. +- Complexity target: O(n) time, O(n) space for the stack. +- Edge cases: all zeros -> 0 operations; all same value -> 1 operation (unless value is 0); alternating patterns handled by stack logic. + +I'll implement the monotonic stack solution described above, with careful handling of zeros (stack cleared) and equality checks. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def minOperations(self, nums: List[int]) -> int: + """ + Monotonic increasing stack approach: + - zeros partition the array: clear stack on zero. + - maintain increasing stack of positive values. + - when seeing v > 0: + pop while stack top > v + if stack is empty or stack top < v: + push v and increment answer + if stack top == v: do nothing + """ + stack = [] + ans = 0 + for v in nums: + if v == 0: + # zeros partition; operations touching zeros are useless + stack.clear() + continue + # remove strictly larger values that cannot be matched further + while stack and stack[-1] > v: + stack.pop() + # if top equals v, this value already accounted for + if stack and stack[-1] == v: + continue + # need a new operation for this new positive level + stack.append(v) + ans += 1 + return ans +``` +- Approach notes: We treat zeros as separators and maintain an increasing stack of active positive values. Every time we see a new positive value not represented at the stack top, it corresponds to an operation (we will need to remove that value eventually). Larger values that appear before a smaller value are popped because once a smaller value appears, future subarrays that cover both would pick the smaller as minimum and removing smaller values first will not require separate operations for those larger values in the same way — the stack popping captures this ordering. +- Time complexity: O(n). Each element is pushed/popped at most once. +- Space complexity: O(n) in worst case for the stack. \ No newline at end of file From 3a9307e1cc577782772de0a95f91a0492d58cbc3 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 10 Nov 2025 00:37:41 +0000 Subject: [PATCH 531/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a4a0d35..7060b58 100644 --- a/README.md +++ b/README.md @@ -29,6 +29,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 7, 2025 | [2528](https://leetcode.com/problems/maximize-the-minimum-powered-city/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2528) | 🔴 Hard | | November 8, 2025 | [1611](https://leetcode.com/problems/minimum-one-bit-operations-to-make-integers-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1611) | 🔴 Hard | | November 9, 2025 | [2169](https://leetcode.com/problems/count-operations-to-obtain-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2169) | 🟢 Easy | +| November 10, 2025 | [3542](https://leetcode.com/problems/minimum-operations-to-convert-all-elements-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3542) | 🟡 Medium | From e2c002f27778178c78fe3ba1c3457594077f775f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 11 Nov 2025 00:19:44 +0000 Subject: [PATCH 532/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/474/gpt5-mini.md | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 problems/474/gpt5-mini.md diff --git a/problems/474/gpt5-mini.md b/problems/474/gpt5-mini.md new file mode 100644 index 0000000..7c41f66 --- /dev/null +++ b/problems/474/gpt5-mini.md @@ -0,0 +1,36 @@ +# [Problem 474: Ones and Zeroes](https://leetcode.com/problems/ones-and-zeroes/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +This looks like a knapsack variant: each string has a "cost" in zeros and ones, and we want the maximum number of items (strings) we can pick without exceeding m zeros and n ones. Each string is either taken or not (0/1 choice), so it maps to 0/1 knapsack with two capacity dimensions. A dynamic programming approach fits: dp[i][j] = maximum number of strings using at most i zeros and j ones. Brute-force subsets is exponential and infeasible for up to 600 strings. + +## Refining the problem, round 2 thoughts +We can compute the zeros and ones count for each string first. For DP we can either use a 3D DP over index and capacities, or a 2D DP updated per string (like typical space-optimized knapsack). To avoid reusing the same string multiple times, iterate capacities in reverse (from m downwards and n downwards). Edge cases: strings that individually require more zeros or ones than capacity — those won't be used. Time complexity will be O(L * m * n) where L = len(strs), which is fine given constraints (L ≤ 600, m,n ≤ 100). Space can be O(m * n) using the optimized 2D DP. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def findMaxForm(self, strs: List[str], m: int, n: int) -> int: + # dp[i][j] = max number of strings using at most i zeros and j ones + dp = [[0] * (n + 1) for _ in range(m + 1)] + + for s in strs: + zeros = s.count('0') + ones = s.count('1') + # If a string individually exceeds capacity, skip updates for impossible states. + # Iterate in reverse to ensure each string is used at most once (0/1 knapsack). + if zeros > m or ones > n: + # Still okay to skip; it can't fit in any capacity. + continue + for i in range(m, zeros - 1, -1): + for j in range(n, ones - 1, -1): + dp[i][j] = max(dp[i][j], dp[i - zeros][j - ones] + 1) + + return dp[m][n] +``` +- Notes: + - Approach: 2D dynamic programming (space-optimized 0/1 knapsack across two dimensions). + - Time complexity: O(L * m * n), where L = len(strs). For each string we update up to (m+1)*(n+1) states. + - Space complexity: O(m * n) for the dp table. + - Implementation detail: iterate capacities in reverse to prevent reusing the same string multiple times. Strings that require more zeros or ones than available are skipped. \ No newline at end of file From 368662410bccee9d8f5f3c1dbc8a641ee2d97f37 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 11 Nov 2025 00:36:33 +0000 Subject: [PATCH 533/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 7060b58..437a39d 100644 --- a/README.md +++ b/README.md @@ -30,6 +30,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 8, 2025 | [1611](https://leetcode.com/problems/minimum-one-bit-operations-to-make-integers-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1611) | 🔴 Hard | | November 9, 2025 | [2169](https://leetcode.com/problems/count-operations-to-obtain-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2169) | 🟢 Easy | | November 10, 2025 | [3542](https://leetcode.com/problems/minimum-operations-to-convert-all-elements-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3542) | 🟡 Medium | +| November 11, 2025 | [474](https://leetcode.com/problems/ones-and-zeroes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/474) | 🟡 Medium | From 093e807f21a102d1891604d99ec0ed4c358a6f6f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 12 Nov 2025 00:19:10 +0000 Subject: [PATCH 534/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/2654/gpt5-mini.md | 56 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 problems/2654/gpt5-mini.md diff --git a/problems/2654/gpt5-mini.md b/problems/2654/gpt5-mini.md new file mode 100644 index 0000000..f469df8 --- /dev/null +++ b/problems/2654/gpt5-mini.md @@ -0,0 +1,56 @@ +# [Problem 2654: Minimum Number of Operations to Make All Array Elements Equal to 1](https://leetcode.com/problems/minimum-number-of-operations-to-make-all-array-elements-equal-to-1/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +If any element is already 1, we can use it to make neighbors 1 by taking gcd(1, x) = 1, so we can "spread" the 1 across the array. Each non-1 element needs one operation to become 1 when there's at least one 1, so I think answer = n - (# of ones) in that case. + +If there are no ones, we need to create a 1 first. Creating a 1 requires finding a contiguous subarray whose gcd is 1; reducing that subarray to a single 1 takes some operations. For a subarray of length L whose gcd is 1, I recall it takes L-1 operations to produce a 1 inside it (by repeatedly taking gcd of adjacent elements). Once we have a single 1, we then need to spread it to the remaining n-1 elements, which costs n-1 operations. So total would be (L-1) + (n-1) = n + L - 2. If no subarray has gcd 1, it's impossible. + +So algorithm: count ones -> if any, return n - count_ones. Otherwise, find minimal L such that gcd of subarray = 1 (O(n^2) with gcd updates). If none -> -1. Else return n + L - 2. + +## Refining the problem, round 2 thoughts +- Edge cases: + - Already contains multiple 1s -> formula n - count_ones still holds. + - Entire array gcd > 1 -> impossible. + - n up to 50, so O(n^2 logA) (gcd updates) is fine. +- Implementation detail: while scanning subarrays, if running gcd becomes 1 we can break the inner loop for that start index because extending only increases length. +- Complexity: We'll compute gcd pairwise cumulatively to avoid recomputing from scratch; use math.gcd. +- No tricky memory requirements. + +## Attempted solution(s) +```python +from math import gcd +from typing import List + +class Solution: + def minOperations(self, nums: List[int]) -> int: + n = len(nums) + # Count existing ones + ones = sum(1 for x in nums if x == 1) + if ones > 0: + return n - ones + + # Find minimal subarray length with gcd == 1 + min_len = float('inf') + for i in range(n): + g = nums[i] + if g == 1: + min_len = 1 + break + for j in range(i + 1, n): + g = gcd(g, nums[j]) + if g == 1: + min_len = min(min_len, j - i + 1) + break # no need to extend this start further + + if min_len == float('inf'): + return -1 + + # To create the first 1 takes (min_len - 1) operations, + # then spreading that 1 to the remaining n-1 elements takes (n - 1) operations. + return (min_len - 1) + (n - 1) +``` +- Notes on approach: + - If there is at least one 1 in nums, we need exactly one operation per non-1 to convert it to 1 using adjacent gcd with a 1, so answer = n - count_ones. + - If no 1 exists, find the shortest contiguous segment whose gcd is 1 (length L). It takes L-1 operations to reduce that segment to a single 1, then n-1 operations to propagate that 1 to all elements. Total = n + L - 2. +- Time complexity: O(n^2 * logA) where n = len(nums) (<=50) and logA is cost of gcd on values up to 1e6. Practically O(n^2). +- Space complexity: O(1) extra space. \ No newline at end of file From e81a2044a2ec24a0952b846fb75e8d0c0fde0985 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 12 Nov 2025 00:35:56 +0000 Subject: [PATCH 535/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 437a39d..74c3381 100644 --- a/README.md +++ b/README.md @@ -31,6 +31,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 9, 2025 | [2169](https://leetcode.com/problems/count-operations-to-obtain-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2169) | 🟢 Easy | | November 10, 2025 | [3542](https://leetcode.com/problems/minimum-operations-to-convert-all-elements-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3542) | 🟡 Medium | | November 11, 2025 | [474](https://leetcode.com/problems/ones-and-zeroes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/474) | 🟡 Medium | +| November 12, 2025 | [2654](https://leetcode.com/problems/minimum-number-of-operations-to-make-all-array-elements-equal-to-1/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2654) | 🟡 Medium | From 5e5e2de32dd95946b2e77b3e8a8d0052e39a54ab Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 13 Nov 2025 00:35:49 +0000 Subject: [PATCH 536/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 74c3381..f4371b4 100644 --- a/README.md +++ b/README.md @@ -32,6 +32,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 10, 2025 | [3542](https://leetcode.com/problems/minimum-operations-to-convert-all-elements-to-zero/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3542) | 🟡 Medium | | November 11, 2025 | [474](https://leetcode.com/problems/ones-and-zeroes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/474) | 🟡 Medium | | November 12, 2025 | [2654](https://leetcode.com/problems/minimum-number-of-operations-to-make-all-array-elements-equal-to-1/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2654) | 🟡 Medium | +| November 13, 2025 | [3228](https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3228) | 🟡 Medium | From 7e7b927eba4fc07e7fe063da1d6ab244eb5fffce Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 14 Nov 2025 00:19:43 +0000 Subject: [PATCH 537/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/2536/gpt5-mini.md | 52 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 problems/2536/gpt5-mini.md diff --git a/problems/2536/gpt5-mini.md b/problems/2536/gpt5-mini.md new file mode 100644 index 0000000..df22506 --- /dev/null +++ b/problems/2536/gpt5-mini.md @@ -0,0 +1,52 @@ +# [Problem 2536: Increment Submatrices by One](https://leetcode.com/problems/increment-submatrices-by-one/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +The problem asks to apply many range-add operations on submatrices of an n x n zero matrix. The naive approach (for each query, loop over all cells in the submatrix and increment) could be O(n^2) per query and will be too slow when n is up to 500 and queries up to 10^4. + +This looks like a classic use-case for a 2D difference array (2D prefix-sum trick): record 4 corner updates per query and then convert the difference array to the final matrix via prefix sums. That should reduce the updates to O(1) per query and O(n^2) to build the final matrix. + +## Refining the problem, round 2 thoughts +Use a (n+1) x (n+1) difference array diff initialized to zero. For a query [r1, c1, r2, c2] do: +- diff[r1][c1] += 1 +- diff[r1][c2+1] -= 1 +- diff[r2+1][c1] -= 1 +- diff[r2+1][c2+1] += 1 + +Because r2+1 and c2+1 can equal n, diff must be sized n+1 to safely index up to n. After applying all queries, compute prefix sums to recover the matrix values. One safe way: first do horizontal prefix (row-wise) for columns 0..n-1, then vertical prefix (column-wise) for rows 0..n-1. The final mat[i][j] will be diff[i][j] for 0 <= i,j < n. + +Edge cases: queries may touch the border (r2 or c2 == n-1), but using n+1 depth handles that. Complexity: O(q + n^2) time, O(n^2) space. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def rangeAddQueries(self, n: int, queries: List[List[int]]) -> List[List[int]]: + # difference array with extra row and column + diff = [[0] * (n + 1) for _ in range(n + 1)] + + # apply 4-corner updates for each query + for r1, c1, r2, c2 in queries: + diff[r1][c1] += 1 + diff[r1][c2 + 1] -= 1 + diff[r2 + 1][c1] -= 1 + diff[r2 + 1][c2 + 1] += 1 + + # build horizontal prefix sums for first n columns + for i in range(n): + for j in range(1, n): + diff[i][j] += diff[i][j - 1] + + # build vertical prefix sums for first n rows + for j in range(n): + for i in range(1, n): + diff[i][j] += diff[i - 1][j] + + # extract resulting n x n matrix + return [[diff[i][j] for j in range(n)] for i in range(n)] +``` +- Notes: + - Approach: 2D difference array (size (n+1)x(n+1)) with O(1) update per query, then 2 passes of prefix sums to recover values. + - Time complexity: O(q + n^2) where q = number of queries. Each query does O(1) work; the final prefix and extraction over n x n cells is O(n^2). + - Space complexity: O(n^2) for the (n+1) x (n+1) diff array (dominant). + - Implementation details: Using n+1 size avoids boundary checks when updating at r2+1 or c2+1; only the first n rows and columns are used when computing the final matrix. \ No newline at end of file From 10afc5831c5e10c266581d5c271107bc44f0f353 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 14 Nov 2025 00:36:26 +0000 Subject: [PATCH 538/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index f4371b4..274a28b 100644 --- a/README.md +++ b/README.md @@ -33,6 +33,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 11, 2025 | [474](https://leetcode.com/problems/ones-and-zeroes/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/474) | 🟡 Medium | | November 12, 2025 | [2654](https://leetcode.com/problems/minimum-number-of-operations-to-make-all-array-elements-equal-to-1/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2654) | 🟡 Medium | | November 13, 2025 | [3228](https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3228) | 🟡 Medium | +| November 14, 2025 | [2536](https://leetcode.com/problems/increment-submatrices-by-one/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2536) | 🟡 Medium | From 92b157bac4f0f6b771a43e23cde539c0e4a9e480 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 15 Nov 2025 00:19:02 +0000 Subject: [PATCH 539/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/3234/gpt5-mini.md | 82 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 problems/3234/gpt5-mini.md diff --git a/problems/3234/gpt5-mini.md b/problems/3234/gpt5-mini.md new file mode 100644 index 0000000..a4adaac --- /dev/null +++ b/problems/3234/gpt5-mini.md @@ -0,0 +1,82 @@ +# [Problem 3234: Count the Number of Substrings With Dominant Ones](https://leetcode.com/problems/count-the-number-of-substrings-with-dominant-ones/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We need to count substrings where the number of ones o >= (number of zeros z)^2. If z is large the square grows quickly; since s.length <= 4e4, z cannot be very large in any valid substring because z^2 would exceed n. That suggests we can bound the number of zeros we need to consider per substring by ~sqrt(n) (about 200). So an approach that iterates over each starting index and tries all feasible zero counts up to that bound seems plausible. + +We can use the positions of zeros to quickly locate the substring that contains exactly c zeros starting from index i: the c-th zero position gives the leftmost index where c zeros are included, and the next zero (if any) bounds the maximum end index before increasing zero count. For each such block we can compute the minimal end index required by the inequality and count how many end indices in that block satisfy it. + +This yields O(n * sqrt(n)) time which should be fine for n up to 4e4. + +## Refining the problem, round 2 thoughts +- Precompute the positions of zeros in s. Let pos be that list. +- For a given start index i and a given zero-count c >= 1: + - The earliest r that includes c zeros is pos[posIdx + c - 1] where posIdx is the index in pos of the first zero >= i. + - The largest r without including the (c+1)-th zero is pos[posIdx + c] - 1, or n-1 if none. + - The inequality o >= c^2 where o = (r - i + 1) - c rearranges to r >= i - 1 + c + c^2. + - So valid r are in [ max( earliest_r, required_r ), latest_r ]. +- For c = 0 (no zeros) substrings must be all-ones; those are always valid. We can count all substrings starting at i that contain no zero simply as nextZero(i) - i. +- Iterate i from 0..n-1, maintain a pointer into pos so we can find posIdx quickly (amortized O(1) move as i increases). For each i, iterate c from 1..K where K ~ sqrt(n) (stop earlier if we run out of zeros). +- Complexity: O(n * sqrt(n)) time, O(n) extra space for zero positions. + +Edge cases: +- All ones -> every substring valid. Our c=0 counting captures those. +- All zeros -> possible only small substrings might satisfy; algorithm handles since pos list is full but c^2 quickly becomes large and restricts r. +- Careful about indexing and bounds when posIdx + c - 1 or posIdx + c exceeds pos length. + +## Attempted solution(s) +```python +import math +from typing import List + +class Solution: + def numberOfSubstrings(self, s: str) -> int: + n = len(s) + pos = [i for i, ch in enumerate(s) if ch == '0'] + m = len(pos) + # Upper bound for zero count to check: if c^2 > n then impossible + K = int(math.sqrt(n)) + 2 + + ans = 0 + + # First count substrings with 0 zeros (all-ones substrings). + # For each start i, number of substrings starting at i with zero zeros: + # nextZero(i) - i (where nextZero(i) is index of first zero >= i, or n) + p = 0 + for i in range(n): + while p < m and pos[p] < i: + p += 1 + next_zero = pos[p] if p < m else n + # substrings s[i..r] with r in [i, next_zero-1] are zero-zero substrings + ans += (next_zero - i) + + # Now count substrings with c >= 1 zeros, for c up to K (practically <= sqrt(n)) + p = 0 + for i in range(n): + # advance pointer to first zero index >= i + while p < m and pos[p] < i: + p += 1 + # try each zero count c + for c in range(1, K + 1): + j = p + c - 1 # index in pos of the c-th zero from start i + if j >= m: + break # not enough zeros remaining to have c zeros + earliest_r = pos[j] # minimal r that includes c zeros + required_r = i - 1 + c + c * c # from o >= c^2 => r >= ... + lower = max(earliest_r, required_r) + # upper bound: before the (c+1)-th zero, or end of string + if p + c < m: + upper = pos[p + c] - 1 + else: + upper = n - 1 + if lower <= upper: + ans += (upper - lower + 1) + + return ans +``` +- Notes about the solution: + - We precompute zero positions to jump to the c-th zero quickly. + - For c = 0 we add next_zero(i) - i for each start index i; this counts all substrings consisting only of ones starting at i. + - For c >= 1 we compute the valid r-range intersection between (a) indices that include exactly c zeros and (b) indices satisfying the inequality. Add the length of that intersection when non-empty. + - Time complexity: O(n * sqrt(n)) because for each of the n start indices we iterate c up to ~sqrt(n). With n <= 4e4 this is about <= 8e6 iterations, which is efficient. + - Space complexity: O(n) for storing positions of zeros. + - Careful bound handling ensures correctness at string endpoints and when zeros run out. \ No newline at end of file From d6221c84d8041282977b4a54b3945104eff570ee Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 15 Nov 2025 00:34:25 +0000 Subject: [PATCH 540/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 274a28b..9c59380 100644 --- a/README.md +++ b/README.md @@ -34,6 +34,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 12, 2025 | [2654](https://leetcode.com/problems/minimum-number-of-operations-to-make-all-array-elements-equal-to-1/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2654) | 🟡 Medium | | November 13, 2025 | [3228](https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3228) | 🟡 Medium | | November 14, 2025 | [2536](https://leetcode.com/problems/increment-submatrices-by-one/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2536) | 🟡 Medium | +| November 15, 2025 | [3234](https://leetcode.com/problems/count-the-number-of-substrings-with-dominant-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3234) | 🟡 Medium | From 71efb7a71952b153050b1ccecc34ed1fc4361ebd Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 16 Nov 2025 00:20:48 +0000 Subject: [PATCH 541/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/1513/gpt5-mini.md | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 problems/1513/gpt5-mini.md diff --git a/problems/1513/gpt5-mini.md b/problems/1513/gpt5-mini.md new file mode 100644 index 0000000..e694901 --- /dev/null +++ b/problems/1513/gpt5-mini.md @@ -0,0 +1,38 @@ +# [Problem 1513: Number of Substrings With Only 1s](https://leetcode.com/problems/number-of-substrings-with-only-1s/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +Sorry — I can’t share internal stream-of-consciousness. Brief summary instead: scan the string once to find contiguous runs of '1's; each run of length k contributes k*(k+1)/2 substrings made of only '1's. Sum those contributions modulo 10^9+7. + +## Refining the problem, round 2 thoughts +- We need a single pass O(n) algorithm: iterate through s, count current consecutive '1's; when a '0' or end is reached, add k*(k+1)//2 to the result and reset the counter. +- Use modulo 1_000_000_007 to avoid overflow; apply modulo when adding each run's count. +- Edge cases: all zeros (answer 0), all ones (single run), alternating characters. +- Alternative: maintain running contribution incrementally (add current_count when you see a '1'), but both approaches are O(n) time and O(1) space. +- Time complexity: O(n). Space complexity: O(1). + +## Attempted solution(s) +```python +class Solution: + def numSub(self, s: str) -> int: + MOD = 10**9 + 7 + res = 0 + count = 0 # current consecutive '1's + + for ch in s: + if ch == '1': + count += 1 + else: + if count: + res = (res + count * (count + 1) // 2) % MOD + count = 0 + # handle trailing run of '1's + if count: + res = (res + count * (count + 1) // 2) % MOD + + return res +``` +- Notes: + - Approach: Count contiguous '1' runs. For a run of length k, number of substrings inside it = k*(k+1)/2 (sum of 1..k). + - Time complexity: O(n), where n = len(s), because we scan the string once. + - Space complexity: O(1), only a few integer variables used. + - Implementation detail: use modulo 10^9+7 when adding each run to keep numbers small. \ No newline at end of file From f4b9886e640dace4d9be56951f7fe4714e1e14d4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 16 Nov 2025 00:38:41 +0000 Subject: [PATCH 542/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 9c59380..ca286cd 100644 --- a/README.md +++ b/README.md @@ -35,6 +35,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 13, 2025 | [3228](https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3228) | 🟡 Medium | | November 14, 2025 | [2536](https://leetcode.com/problems/increment-submatrices-by-one/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2536) | 🟡 Medium | | November 15, 2025 | [3234](https://leetcode.com/problems/count-the-number-of-substrings-with-dominant-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3234) | 🟡 Medium | +| November 16, 2025 | [1513](https://leetcode.com/problems/number-of-substrings-with-only-1s/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1513) | 🟡 Medium | From 7cbb2faa4cfbc0addf720c03b90d9c5b932dac85 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 17 Nov 2025 00:19:50 +0000 Subject: [PATCH 543/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/1437/gpt5-mini.md | 44 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 problems/1437/gpt5-mini.md diff --git a/problems/1437/gpt5-mini.md b/problems/1437/gpt5-mini.md new file mode 100644 index 0000000..27c9e8d --- /dev/null +++ b/problems/1437/gpt5-mini.md @@ -0,0 +1,44 @@ +# [Problem 1437: Check If All 1's Are at Least Length K Places Away](https://leetcode.com/problems/check-if-all-1s-are-at-least-length-k-places-away/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +I need to verify that every pair of 1s in the array has at least k zeros between them. The array length up to 1e5 so an O(n) scan is fine. The simplest idea: walk the array, remember the index of the previous 1; when I encounter a new 1, compute the gap between indices and check whether there are at least k zeros between them. If any gap is too small, return False. If I finish the scan, return True. + +Edge quick thoughts: if k == 0 it's always true because no separation required. For the first encountered 1 there is no previous to compare with. Use -inf or None to indicate no previous 1. Be careful with off-by-one: if previous 1 at i_prev and current at i, number of places between = i - i_prev - 1, so require i - i_prev - 1 >= k -> equivalently i - i_prev > k. + +## Refining the problem, round 2 thoughts +Implementation details: +- Iterate with enumerate to get indices. +- Keep prev index initialized to None. +- On nums[i] == 1: + - If prev is not None, check if i - prev - 1 < k -> return False. + - Update prev = i. +- Complexity: single pass, O(n) time, O(1) extra space. +Alternative approaches: you could count consecutive zeros after each 1, or use a queue to store last 1s, but those are no simpler or not more efficient in this problem. + +Edge cases: +- All zeros -> True. +- Single 1 -> True. +- k = 0 -> True. +- Adjacent 1s -> must be k = 0 to be valid. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def kLengthApart(self, nums: List[int], k: int) -> bool: + prev = None # index of previous 1 + for i, val in enumerate(nums): + if val == 1: + if prev is not None: + # number of places between prev and i is (i - prev - 1) + if i - prev - 1 < k: + return False + prev = i + return True +``` +- Notes: + - Approach: single pass keeping the index of the last seen 1 and checking the number of zeros between consecutive 1s. + - Time complexity: O(n), where n = len(nums), because we examine each element once. + - Space complexity: O(1) extra space (only an index variable). + - Implementation detail: the check uses i - prev - 1 < k (equivalently i - prev <= k) to detect a violation. \ No newline at end of file From 27cd819223769425f796d8e342dcd8be8cbfe991 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 17 Nov 2025 00:37:09 +0000 Subject: [PATCH 544/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index ca286cd..273a75d 100644 --- a/README.md +++ b/README.md @@ -36,6 +36,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 14, 2025 | [2536](https://leetcode.com/problems/increment-submatrices-by-one/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2536) | 🟡 Medium | | November 15, 2025 | [3234](https://leetcode.com/problems/count-the-number-of-substrings-with-dominant-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3234) | 🟡 Medium | | November 16, 2025 | [1513](https://leetcode.com/problems/number-of-substrings-with-only-1s/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1513) | 🟡 Medium | +| November 17, 2025 | [1437](https://leetcode.com/problems/check-if-all-1s-are-at-least-length-k-places-away/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1437) | 🟢 Easy | From c6c80929775f15d9c0a305b71f1702a564d101e9 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 18 Nov 2025 00:19:38 +0000 Subject: [PATCH 545/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/717/gpt5-mini.md | 43 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 problems/717/gpt5-mini.md diff --git a/problems/717/gpt5-mini.md b/problems/717/gpt5-mini.md new file mode 100644 index 0000000..935e3fe --- /dev/null +++ b/problems/717/gpt5-mini.md @@ -0,0 +1,43 @@ +# [Problem 717: 1-bit and 2-bit Characters](https://leetcode.com/problems/1-bit-and-2-bit-characters/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We have two character encodings: 0 is a single-bit character, 10 and 11 are two-bit characters. The array always ends with 0. We need to determine whether that final 0 is decoded as a single-bit character or whether it is consumed as the second bit of a preceding two-bit character. + +First idea: simulate parsing the bits from left to right greedily. When we see a 0, it must be a one-bit character, so move one step. When we see a 1, it must start a two-bit character (10 or 11), so skip two steps. If we parse until we reach the last position, then the last bit is a one-bit character; otherwise it's part of a two-bit character. This gives an O(n) time, O(1) space solution. + +I also recall a neat trick: count how many consecutive 1s appear immediately before the final 0. If that count is odd, the final 0 is part of a two-bit character (because the last two-bit started at that odd 1), so return false; if even, return true. + +Edge-case thoughts: array length might be 1 (bits = [0]) -> true. The array always ends with 0 by problem statement. + +## Refining the problem, round 2 thoughts +- The greedy parse is straightforward and easy to implement. Stop parsing when i reaches n-1 (the last index) or goes beyond it. If i == n-1 at the end, last is one-bit; else not. +- The counting-ones trick is slightly more clever and also O(n) but requires scanning backwards from the second-last element counting consecutive ones until hitting a 0 or start. If count is even -> true, odd -> false. +- Both are O(n) time and O(1) extra space. The greedy parse is easy to reason about and less error-prone. +- Confirm constraints: n up to 1000 so any linear solution is fine. +- Implementation detail: use while loop carefully to avoid index errors; for greedy approach loop while i < n-1 so we don't accidentally skip checking the last required comparison. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def isOneBitCharacter(self, bits: List[int]) -> bool: + """ + Greedy parse: iterate from the start, when seeing 1 skip two bits, when seeing 0 skip one bit. + Stop when we reach or pass the last index. If we exactly land on the last index, it's a one-bit char. + """ + n = len(bits) + i = 0 + # parse until the penultimate index; the last bit is guaranteed 0 by problem statement + while i < n - 1: + if bits[i] == 1: + i += 2 + else: + i += 1 + return i == n - 1 +``` +- Notes: + - Approach: Greedy left-to-right parsing. When encountering 1 we know it's the start of a two-bit character so skip the next bit; when encountering 0 it's a one-bit character so move one step. + - Correctness: Since encoding is unambiguous and greedy picking of smallest valid character at each step matches valid decoding, the final position indicates whether the last bit stands alone. + - Time complexity: O(n), where n = len(bits), because each iteration advances i by at least 1. + - Space complexity: O(1) extra space. \ No newline at end of file From 3ac8c16ffd5f800c63c65ad4a254e0857be7a68e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 18 Nov 2025 00:35:36 +0000 Subject: [PATCH 546/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 273a75d..34d7aeb 100644 --- a/README.md +++ b/README.md @@ -37,6 +37,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 15, 2025 | [3234](https://leetcode.com/problems/count-the-number-of-substrings-with-dominant-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3234) | 🟡 Medium | | November 16, 2025 | [1513](https://leetcode.com/problems/number-of-substrings-with-only-1s/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1513) | 🟡 Medium | | November 17, 2025 | [1437](https://leetcode.com/problems/check-if-all-1s-are-at-least-length-k-places-away/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1437) | 🟢 Easy | +| November 18, 2025 | [717](https://leetcode.com/problems/1-bit-and-2-bit-characters/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/717) | 🟢 Easy | From 101696d9868d7284d800c7ff174278acaa9b607b Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 19 Nov 2025 00:19:52 +0000 Subject: [PATCH 547/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/2154/gpt5-mini.md | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 problems/2154/gpt5-mini.md diff --git a/problems/2154/gpt5-mini.md b/problems/2154/gpt5-mini.md new file mode 100644 index 0000000..0d62a78 --- /dev/null +++ b/problems/2154/gpt5-mini.md @@ -0,0 +1,26 @@ +# [Problem 2154: Keep Multiplying Found Values by Two](https://leetcode.com/problems/keep-multiplying-found-values-by-two/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We need to repeatedly check if the current value "original" appears in nums; if it does, double original and continue. A straightforward way is to search the array each time, but that would be O(n) per check and could be wasteful. Using a hash set of nums gives O(1) average membership checks, so we can loop while original is in the set and double it. The process must terminate because values grow exponentially (and constraints limit nums values), and Python handles big integers anyway. + +## Refining the problem, round 2 thoughts +- Build a set from nums for fast membership tests. +- Loop: while original in set: original *= 2. +- Edge cases: if original is not present initially, we return original immediately. Duplicates in nums don't matter because set handles membership. The number of doublings is limited (values in nums are <= 1000, but even without that bound the loop is finite as values grow). +- Time complexity: O(n) to build the set, plus O(k) membership checks where k is number of successful doublings (k is small, at most ~log(max_value/original)). Space: O(n) for the set. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def findFinalValue(self, nums: List[int], original: int) -> int: + seen = set(nums) + while original in seen: + original *= 2 + return original +``` +- Approach: Convert nums to a set for O(1) membership checks and repeatedly double original while it's present in the set. +- Time complexity: O(n + k) where n = len(nums) to build the set and k is the number of successful doublings (typically small). In worst-case terms k <= log(max_possible_value/original), but with given constraints this is tiny. +- Space complexity: O(n) for the set. +- Implementation details: Uses Python's set for fast membership; Python integers can grow arbitrarily large so no overflow concerns. \ No newline at end of file From 249868d12e62f214893571417ac045323b09af0f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 19 Nov 2025 00:36:25 +0000 Subject: [PATCH 548/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 34d7aeb..87dc6d4 100644 --- a/README.md +++ b/README.md @@ -38,6 +38,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 16, 2025 | [1513](https://leetcode.com/problems/number-of-substrings-with-only-1s/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1513) | 🟡 Medium | | November 17, 2025 | [1437](https://leetcode.com/problems/check-if-all-1s-are-at-least-length-k-places-away/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1437) | 🟢 Easy | | November 18, 2025 | [717](https://leetcode.com/problems/1-bit-and-2-bit-characters/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/717) | 🟢 Easy | +| November 19, 2025 | [2154](https://leetcode.com/problems/keep-multiplying-found-values-by-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2154) | 🟢 Easy | From 70cdc2265d204cf2291529bddbf12e1e12fb1b7f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 20 Nov 2025 00:19:44 +0000 Subject: [PATCH 549/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/757/gpt5-mini.md | 57 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 problems/757/gpt5-mini.md diff --git a/problems/757/gpt5-mini.md b/problems/757/gpt5-mini.md new file mode 100644 index 0000000..4c6843b --- /dev/null +++ b/problems/757/gpt5-mini.md @@ -0,0 +1,57 @@ +# [Problem 757: Set Intersection Size At Least Two](https://leetcode.com/problems/set-intersection-size-at-least-two/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +I need the smallest set of integers such that every interval contains at least two of those integers. This smells like a greedy covering problem. If I process intervals by their right endpoints (earliest finishing first) I can try to place points as far right as possible so they help future intervals too. For each interval I want to know how many of the already chosen points fall inside it. If none, I should add two points inside the interval (preferably the two largest possible, i.e., r-1 and r). If exactly one, add one more (again put it at r). If two or more, nothing to do. + +I remember one tricky part: when intervals share the same right endpoint, the ordering by start matters (we should process intervals with larger starts first when ends tie), so that we don't mistakenly think an already chosen point at r suffices for a tighter interval that requires two distinct points. + +So approach: sort by end ascending, and for equal ends by start descending, maintain two largest chosen points a (second last) and b (last), and update as we scan. + +## Refining the problem, round 2 thoughts +- Sorting: key = (end, -start). +- Maintain two latest chosen points a < b (initialize to very small values). For interval [l, r]: + - If l > b: none of a or b in interval -> pick r-1 and r (ans += 2), set a = r-1, b = r. + - Else if l > a: exactly one (b) in interval -> pick r (ans += 1), set a = b, b = r. + - Else: a and b both in interval -> nothing to do. +- Edge cases: + - intervals length up to 3000 so sorting O(n log n) is fine. + - r-1 will always be >= l? Given start < end, r-1 >= l can be equal or greater; r-1 could be < l if interval length is 1? Actually start < end implies at least two integers, e.g., [1,2] => r-1 == 1 == l. So r-1 always >= l. + - Sorting by start descending for same end prevents incorrect reuse of existing r when we need two distinct points inside tight intervals with same end. +- Complexity: sorting O(n log n), single pass O(n), space O(1) extra. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def intersectionSizeTwo(self, intervals: List[List[int]]) -> int: + # Sort by end ascending, and for equal end sort by start descending + intervals.sort(key=lambda x: (x[1], -x[0])) + + # a = second-last chosen point, b = last chosen point + a = -10**18 + b = -10**18 + ans = 0 + + for l, r in intervals: + if l > b: + # neither a nor b is in [l, r]: pick r-1 and r + ans += 2 + a = r - 1 + b = r + elif l > a: + # only b is in [l, r]: pick r + ans += 1 + a = b + b = r + else: + # both a and b are in [l, r]: nothing to do + continue + + return ans +``` +- Notes: + - Greedy idea: always choose points as far to the right as possible (r-1 and r) so they maximize reuse by later intervals. + - Sorting by (end asc, start desc) ensures correctness when multiple intervals share the same end. + - Time complexity: O(n log n) due to sorting, where n = number of intervals. + - Space complexity: O(1) extra (besides input and sorting). \ No newline at end of file From 8a8a4e4121d1fafaaf57e8299893ecfde9125695 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 20 Nov 2025 00:35:03 +0000 Subject: [PATCH 550/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 87dc6d4..b7d3efd 100644 --- a/README.md +++ b/README.md @@ -39,6 +39,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 17, 2025 | [1437](https://leetcode.com/problems/check-if-all-1s-are-at-least-length-k-places-away/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1437) | 🟢 Easy | | November 18, 2025 | [717](https://leetcode.com/problems/1-bit-and-2-bit-characters/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/717) | 🟢 Easy | | November 19, 2025 | [2154](https://leetcode.com/problems/keep-multiplying-found-values-by-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2154) | 🟢 Easy | +| November 20, 2025 | [757](https://leetcode.com/problems/set-intersection-size-at-least-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/757) | 🔴 Hard | From 1ba30854a36f4daf09a372ec2cca942a7fe1f746 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 21 Nov 2025 00:19:13 +0000 Subject: [PATCH 551/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/1930/gpt5-mini.md | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 problems/1930/gpt5-mini.md diff --git a/problems/1930/gpt5-mini.md b/problems/1930/gpt5-mini.md new file mode 100644 index 0000000..4857477 --- /dev/null +++ b/problems/1930/gpt5-mini.md @@ -0,0 +1,38 @@ +# [Problem 1930: Unique Length-3 Palindromic Subsequences](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We want palindromes of length 3, so they must be of the form x y x (first and last characters equal). The only degrees of freedom are the outer character x and the middle character y. We need to count distinct strings "x y x" that appear as subsequences (not substrings). For a given outer character x, if we can find at least one occurrence of x before some position and at least one occurrence after that position, then any distinct character y that appears somewhere between the first and last occurrence of x will yield the palindrome x y x. So counting, for each outer letter x, the number of distinct letters present between the first and last occurrence of x gives the number of distinct palindromes with outer letter x. Sum over x (26 letters). That avoids double counting because each palindrome is determined uniquely by (x,y). + +## Refining the problem, round 2 thoughts +- Edge cases: if a letter x appears fewer than 2 times (i.e., no index i int: + # record first and last occurrence for each lowercase letter + first = [-1] * 26 + last = [-1] * 26 + for i, ch in enumerate(s): + idx = ord(ch) - 97 + if first[idx] == -1: + first[idx] = i + last[idx] = i + + ans = 0 + # for each possible outer character, count distinct middle characters between first and last + for c in range(26): + if first[c] != -1 and first[c] < last[c]: + seen = [False] * 26 + for j in range(first[c] + 1, last[c]): + seen[ord(s[j]) - 97] = True + ans += sum(seen) + return ans +``` +- Notes: + - Approach: For each outer character x (26 options), find its first and last index; if they exist with first < last, count the number of distinct characters in between — each distinct middle character y gives a unique palindrome x y x. + - Time complexity: O(26 * n) = O(n) where n = len(s). For n up to 1e5 this is fast. + - Space complexity: O(1) extra (arrays of size 26). \ No newline at end of file From c0b349a18c09455f094b9ec0dd0b3511ae5299fd Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 21 Nov 2025 00:35:49 +0000 Subject: [PATCH 552/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b7d3efd..8fffe77 100644 --- a/README.md +++ b/README.md @@ -40,6 +40,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 18, 2025 | [717](https://leetcode.com/problems/1-bit-and-2-bit-characters/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/717) | 🟢 Easy | | November 19, 2025 | [2154](https://leetcode.com/problems/keep-multiplying-found-values-by-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2154) | 🟢 Easy | | November 20, 2025 | [757](https://leetcode.com/problems/set-intersection-size-at-least-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/757) | 🔴 Hard | +| November 21, 2025 | [1930](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1930) | 🟡 Medium | From 6767b5e10eaa9c63e7d01e9722a28ae4411dd0b7 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 22 Nov 2025 00:18:34 +0000 Subject: [PATCH 553/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/3190/gpt5-mini.md | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 problems/3190/gpt5-mini.md diff --git a/problems/3190/gpt5-mini.md b/problems/3190/gpt5-mini.md new file mode 100644 index 0000000..0747a91 --- /dev/null +++ b/problems/3190/gpt5-mini.md @@ -0,0 +1,30 @@ +# [Problem 3190: Find Minimum Operations to Make All Elements Divisible by Three](https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We only care about each number modulo 3. For a number x, let r = x % 3: +- If r == 0, it's already divisible by 3 (cost 0). +- If r == 1, we can subtract 1 (cost 1) or add 2 (cost 2) — best is 1. +- If r == 2, we can add 1 (cost 1) or subtract 2 (cost 2) — best is 1. + +So each element with remainder 1 or 2 costs exactly 1 operation. That suggests the answer is simply the count of elements with remainder != 0. I briefly wondered if operations could be shared or paired to reduce cost, but operations act on single elements independently (add/subtract 1 to any element), so there's no sharing advantage. + +## Refining the problem, round 2 thoughts +- Edge cases: small arrays, all already divisible by 3 -> answer 0. Works fine. +- Alternative expression: sum(min(r, 3-r) for each remainder r) which reduces here to counting nonzero remainders since min(1,2)=1 and min(2,1)=1. +- Time complexity: O(n) where n = len(nums). +- Space complexity: O(1) extra (ignoring input), only a counter required. +- Implementation detail: use generator expression to count nums with x % 3 != 0 for succinctness. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def minimumOperations(self, nums: List[int]) -> int: + # Each element with remainder 1 or 2 needs exactly 1 operation to become divisible by 3. + return sum(1 for x in nums if x % 3 != 0) +``` +- Notes: + - Approach: Count how many elements have remainder 1 or 2 modulo 3. Each such element requires one +1 or -1 operation. + - Time complexity: O(n), single pass over the array. + - Space complexity: O(1) extra (generator uses constant extra memory). \ No newline at end of file From 4264f7e320e16f00c6d3412d6a7d6c3e24dd7e8f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 22 Nov 2025 00:34:15 +0000 Subject: [PATCH 554/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 8fffe77..33bdbf3 100644 --- a/README.md +++ b/README.md @@ -41,6 +41,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 19, 2025 | [2154](https://leetcode.com/problems/keep-multiplying-found-values-by-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2154) | 🟢 Easy | | November 20, 2025 | [757](https://leetcode.com/problems/set-intersection-size-at-least-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/757) | 🔴 Hard | | November 21, 2025 | [1930](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1930) | 🟡 Medium | +| November 22, 2025 | [3190](https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3190) | 🟢 Easy | From 06d5338d0ff8f1db478b0b225e51a3bf6292eeb7 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 23 Nov 2025 00:22:01 +0000 Subject: [PATCH 555/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/1262/gpt5-mini.md | 73 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 problems/1262/gpt5-mini.md diff --git a/problems/1262/gpt5-mini.md b/problems/1262/gpt5-mini.md new file mode 100644 index 0000000..d92f0e2 --- /dev/null +++ b/problems/1262/gpt5-mini.md @@ -0,0 +1,73 @@ +# [Problem 1262: Greatest Sum Divisible by Three](https://leetcode.com/problems/greatest-sum-divisible-by-three/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +I want the largest sum from some subset of the array such that the sum % 3 == 0. The simplest idea is to take as many numbers as possible — i.e., try to use the total sum, and if total % 3 != 0, remove the smallest possible amount to make it divisible by 3. So compute total = sum(nums). If total % 3 == 0 we're done. Otherwise, depending on remainder r (1 or 2), either remove the smallest single number with num % 3 == r, or remove the smallest two numbers whose remainders sum to r (i.e., two with remainder 3-r). We should track the smallest one or two numbers in each remainder class. This is O(n) and constant extra space. + +I also recall a DP approach where we keep dp[0..2] = max sum with remainder 0,1,2 and update for each number, but the greedy "remove minimal" approach is simpler to implement. + +Edge cases: if no appropriate numbers exist to remove we must return 0 because we can choose empty subset. Also handle when array has small size (1 or 2). + +## Refining the problem, round 2 thoughts +Refinements: +- Efficiently track the two smallest numbers for remainder 1 and remainder 2 classes. Initialize them to infinity and update while iterating. +- After iteration, if total % 3 == 1: candidate removals are min_single_mod1 and sum_of_two_smallest_mod2. If neither exists, answer is 0. Likewise for remainder 2. +- Complexity: O(n) time, O(1) extra space. +- Alternative solution: DP with dp = [0, -inf, -inf], then for each num update new_dp[(j + num%3)%3] = max(dp[(j + num%3)%3], dp[j] + num) — also O(n) time and O(1) space. +- Confirm with examples: [3,6,5,1,8] -> total 23 remainder 2 -> remove smallest mod2 (5) or two mod1s (1 and 8? 8%3=2, so not) so remove 5 get 18. +- Edge-case: if removal candidates sum to more than total just silly; check existence via infinity sentinel. + +## Attempted solution(s) +```python +from typing import List +import math + +class Solution: + def greatestSumDivisibleByThree(self, nums: List[int]) -> int: + total = sum(nums) + # track smallest two numbers with remainder 1 and remainder 2 + inf = float('inf') + m1_a = m1_b = inf # two smallest with num % 3 == 1 + m2_a = m2_b = inf # two smallest with num % 3 == 2 + + for x in nums: + r = x % 3 + if r == 1: + # update two smallest for remainder 1 + if x < m1_a: + m1_b = m1_a + m1_a = x + elif x < m1_b: + m1_b = x + elif r == 2: + # update two smallest for remainder 2 + if x < m2_a: + m2_b = m2_a + m2_a = x + elif x < m2_b: + m2_b = x + + rem = total % 3 + if rem == 0: + return total + + ans = 0 + if rem == 1: + # Option 1: remove smallest single remainder-1 + cand1 = total - m1_a if m1_a != inf else -math.inf + # Option 2: remove two smallest remainder-2 + cand2 = total - (m2_a + m2_b) if m2_a != inf and m2_b != inf else -math.inf + ans = max(0, int(max(cand1, cand2))) # ensure non-negative + else: # rem == 2 + # Option 1: remove smallest single remainder-2 + cand1 = total - m2_a if m2_a != inf else -math.inf + # Option 2: remove two smallest remainder-1 + cand2 = total - (m1_a + m1_b) if m1_a != inf and m1_b != inf else -math.inf + ans = max(0, int(max(cand1, cand2))) + + return ans +``` +- Notes: + - Approach: Greedy removal of the smallest total value necessary to make the sum divisible by 3. Track the two smallest numbers in remainder classes 1 and 2 while scanning once. + - Time complexity: O(n) where n = len(nums), because we scan the array once. + - Space complexity: O(1) extra space (only a few variables). + - Alternative: A DP approach using dp[3] to keep max sums for each remainder class also works and is equally O(n) time, O(1) space. \ No newline at end of file From 06abca14ae264f88b1c671b23d798e3d6caf80d8 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 23 Nov 2025 00:41:14 +0000 Subject: [PATCH 556/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 33bdbf3..3264dfa 100644 --- a/README.md +++ b/README.md @@ -42,6 +42,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 20, 2025 | [757](https://leetcode.com/problems/set-intersection-size-at-least-two/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/757) | 🔴 Hard | | November 21, 2025 | [1930](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1930) | 🟡 Medium | | November 22, 2025 | [3190](https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3190) | 🟢 Easy | +| November 23, 2025 | [1262](https://leetcode.com/problems/greatest-sum-divisible-by-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1262) | 🟡 Medium | From ccdd981c70ece26ef2993d1c297540411b75a48c Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 24 Nov 2025 00:20:48 +0000 Subject: [PATCH 557/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/1018/gpt5-mini.md | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 problems/1018/gpt5-mini.md diff --git a/problems/1018/gpt5-mini.md b/problems/1018/gpt5-mini.md new file mode 100644 index 0000000..e8a7097 --- /dev/null +++ b/problems/1018/gpt5-mini.md @@ -0,0 +1,26 @@ +# [Problem 1018: Binary Prefix Divisible By 5](https://leetcode.com/problems/binary-prefix-divisible-by-5/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +I need to check for each prefix treated as a binary number whether it's divisible by 5. The naive way would be to compute the integer value of each prefix and test % 5, but prefix values grow exponentially with length and could become large (though Python can handle big ints, it's wasteful). Observing modular arithmetic: if current prefix value is v, and next bit is b, new value is v' = 2*v + b. So I can just keep v mod 5 and update v = (2*v + b) % 5. Then check v == 0. That is O(1) work per element and avoids large numbers. + +## Refining the problem, round 2 thoughts +Edge cases: leading zeros (e.g., [0,0,...]) should produce True for any prefix that equals 0. The modulo approach handles that naturally. Complexity: single pass O(n) time, O(n) output space. No tricky corner cases beyond ensuring we update remainder correctly. Alternative would be to build full integers or use bit shifting, but remainder tracking is simplest and most efficient. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def prefixesDivBy5(self, nums: List[int]) -> List[bool]: + res: List[bool] = [] + rem = 0 # current prefix value modulo 5 + for bit in nums: + rem = (rem * 2 + bit) % 5 + res.append(rem == 0) + return res +``` +- Notes: + - Approach: maintain remainder rem = current_prefix % 5, update rem = (2*rem + bit) % 5 for each incoming bit, and record whether rem == 0. + - Time complexity: O(n), where n = len(nums), since we do O(1) work per element. + - Space complexity: O(n) for the output list (plus O(1) extra for rem). + - This avoids constructing large integers and uses modular arithmetic to stay efficient. \ No newline at end of file From bc0491dce6ce8bdcd173942984c34678bee6eadc Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 24 Nov 2025 00:38:37 +0000 Subject: [PATCH 558/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 3264dfa..b49927c 100644 --- a/README.md +++ b/README.md @@ -43,6 +43,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 21, 2025 | [1930](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1930) | 🟡 Medium | | November 22, 2025 | [3190](https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3190) | 🟢 Easy | | November 23, 2025 | [1262](https://leetcode.com/problems/greatest-sum-divisible-by-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1262) | 🟡 Medium | +| November 24, 2025 | [1018](https://leetcode.com/problems/binary-prefix-divisible-by-5/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1018) | 🟢 Easy | From 599616578d4fc7bdd94292a6efcc1f8955cb37a5 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 25 Nov 2025 00:18:14 +0000 Subject: [PATCH 559/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/1015/gpt5-mini.md | 45 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 problems/1015/gpt5-mini.md diff --git a/problems/1015/gpt5-mini.md b/problems/1015/gpt5-mini.md new file mode 100644 index 0000000..98586fd --- /dev/null +++ b/problems/1015/gpt5-mini.md @@ -0,0 +1,45 @@ +# [Problem 1015: Smallest Integer Divisible by K](https://leetcode.com/problems/smallest-integer-divisible-by-k/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +I need the smallest positive integer n made only of digit '1' that is divisible by k, and return its length. Directly constructing the integer will quickly overflow, so I should work with remainders modulo k. If I build numbers 1, 11, 111, ... I can update the remainder r <- (r*10 + 1) % k each step and check when r == 0. + +I recall that if k is divisible by 2 or 5, such a number can't exist because a decimal number composed only of 1s is odd (not divisible by 2) and its last digit is 1 (not divisible by 5). Also by pigeonhole principle, remainders repeat within k steps, so I only need to try at most k times; if I don't hit remainder 0 within k iterations it's impossible. + +So algorithm: handle k%2==0 or k%5==0 -> -1; then iterate up to k times computing remainders, return index when remainder zero. + +## Refining the problem, round 2 thoughts +Edge cases: +- k = 1 -> answer 1 (first remainder 1%1 == 0). +- Very large k up to 1e5; O(k) loop is fine. +- No extra memory needed beyond a few ints. + +Alternative detection of impossibility: instead of special-casing 2 and 5, I could run the loop and rely on the k-iteration bound; but short-circuiting for 2 and 5 is a quick check and common observation. + +Time complexity O(k), space O(1). Implementation straightforward in Python. + +## Attempted solution(s) +```python +class Solution: + def smallestRepunitDivByK(self, k: int) -> int: + """ + Return the length of the smallest positive integer consisting only of '1's + that is divisible by k, or -1 if none exists. + """ + # Quick impossibility check: any number consisting only of 1's is odd and + # ends with digit 1, so it cannot be divisible by 2 or 5. + if k % 2 == 0 or k % 5 == 0: + return -1 + + remainder = 0 + # Try lengths from 1 to k (pigeonhole: if no remainder 0 in k steps, it won't appear) + for length in range(1, k + 1): + remainder = (remainder * 10 + 1) % k + if remainder == 0: + return length + return -1 +``` +- Notes: + - Approach: iterate building the remainder of 1, 11, 111, ... modulo k using remainder = (remainder*10 + 1) % k. Return the first length where remainder == 0. + - Time complexity: O(k) in the worst case (at most k iterations). + - Space complexity: O(1) extra space. + - Important implementation details: avoid constructing the large integer itself; only track remainder. Early return for k divisible by 2 or 5 to handle impossibility quickly. \ No newline at end of file From e4cb634d6ae7ec273eff874094702d81bf9ada4a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 25 Nov 2025 00:34:41 +0000 Subject: [PATCH 560/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index b49927c..6119c7d 100644 --- a/README.md +++ b/README.md @@ -44,6 +44,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 22, 2025 | [3190](https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3190) | 🟢 Easy | | November 23, 2025 | [1262](https://leetcode.com/problems/greatest-sum-divisible-by-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1262) | 🟡 Medium | | November 24, 2025 | [1018](https://leetcode.com/problems/binary-prefix-divisible-by-5/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1018) | 🟢 Easy | +| November 25, 2025 | [1015](https://leetcode.com/problems/smallest-integer-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1015) | 🟡 Medium | From 5e3aa700e635ba8ec4527d021ae007c547c589d3 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 26 Nov 2025 00:19:36 +0000 Subject: [PATCH 561/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/2435/gpt5-mini.md | 84 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 problems/2435/gpt5-mini.md diff --git a/problems/2435/gpt5-mini.md b/problems/2435/gpt5-mini.md new file mode 100644 index 0000000..5629514 --- /dev/null +++ b/problems/2435/gpt5-mini.md @@ -0,0 +1,84 @@ +# [Problem 2435: Paths in Matrix Whose Sum Is Divisible by K](https://leetcode.com/problems/paths-in-matrix-whose-sum-is-divisible-by-k/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We need to count number of down/right paths from (0,0) to (m-1,n-1) such that the sum of visited grid values is divisible by k. This is a classic DP over grid where each DP state must remember sum modulo k. Natural DP: dp[i][j][r] = number of ways to reach (i,j) with current sum % k == r. Transition from top or left: shift remainder by grid[i][j] and add counts. + +However naive 3D DP storing states for all cells may be memory-heavy in Python because k ≤ 50 and m*n ≤ 5e4 — worst-case could be many integers. We can reduce memory by only keeping previous row and current row (since transitions only from top and left). Also we can transpose the grid so the number of columns is the smaller dimension (to minimize memory for per-column arrays). Complexity will be O(m * n * k) time and O(n * k) memory (after transpose ensuring n ≤ m). + +Edge cases: single row or single column (only one path), k = 1 (everything divisible), but DP handles these naturally. Transposing when n > m keeps memory small. + +## Refining the problem, round 2 thoughts +- Ensure we transpose the grid so the number of columns (n) ≤ number of rows (m) — that makes O(n*k) memory safe because n ≤ sqrt(m*n) ≤ sqrt(5e4) ≈ 224. +- Use two arrays (prev row and cur row) where each entry is a length-k list of counts. +- Initialize dp at (0,0) with remainder grid[0][0] % k = 1 way. +- For cell (i,j) add contributions from prev[j] (top) and cur[j-1] (left), shifting indices by cell value modulo k. +- Use modulo 10^9+7 for counts. +- Time complexity O(m*n*k) with m*n ≤ 5e4 and k ≤ 50 so ≲ 2.5e6 remainder-updates; memory O(n*k). + +Now provide the full Python solution. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def numberOfPaths(self, grid: List[List[int]], k: int) -> int: + MOD = 10**9 + 7 + m = len(grid) + n = len(grid[0]) + # Transpose if columns > rows to minimize number of columns (and memory) + if n > m: + grid = [list(row) for row in zip(*grid)] + m, n = n, m # swapped + + # prev[j] is a list of length k: counts for column j in previous row + prev = [ [0]*k for _ in range(n) ] + + for i in range(m): + cur = [ [0]*k for _ in range(n) ] + for j in range(n): + val = grid[i][j] % k + if i == 0 and j == 0: + cur[0][val] = 1 + else: + # from top (prev row same column) + if i > 0: + top = prev[j] + # shift each remainder by val + if val == 0: + # small optimization: if val 0, remainders don't shift + for r in range(k): + cnt = top[r] + if cnt: + cur[j][r] = (cur[j][r] + cnt) % MOD + else: + for r in range(k): + cnt = top[r] + if cnt: + newr = (r + val) % k + cur[j][newr] = (cur[j][newr] + cnt) % MOD + + # from left (current row previous column) + if j > 0: + left = cur[j-1] + if val == 0: + for r in range(k): + cnt = left[r] + if cnt: + cur[j][r] = (cur[j][r] + cnt) % MOD + else: + for r in range(k): + cnt = left[r] + if cnt: + newr = (r + val) % k + cur[j][newr] = (cur[j][newr] + cnt) % MOD + prev = cur + + # answer is number of ways to reach last cell with remainder 0 + return prev[n-1][0] % MOD +``` +- Notes on approach: + - We transpose grid when needed to ensure the number of columns n ≤ rows m so memory O(n*k) is small. + - prev and cur store counts per remainder for each column. For each cell we combine contributions from top (prev[j]) and left (cur[j-1]) after shifting remainders by grid[i][j] % k. + - Time complexity: O(m * n * k). Given constraints m * n ≤ 5e4 and k ≤ 50, this is at most about 2.5e6 remainder-updates — efficient. + - Space complexity: O(n * k) after transpose (n ≤ sqrt(m*n)), which fits comfortably in memory. \ No newline at end of file From 20ec38b220032ad725dc4534bc119543ae1c406e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Wed, 26 Nov 2025 00:36:01 +0000 Subject: [PATCH 562/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6119c7d..06fd425 100644 --- a/README.md +++ b/README.md @@ -45,6 +45,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 23, 2025 | [1262](https://leetcode.com/problems/greatest-sum-divisible-by-three/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1262) | 🟡 Medium | | November 24, 2025 | [1018](https://leetcode.com/problems/binary-prefix-divisible-by-5/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1018) | 🟢 Easy | | November 25, 2025 | [1015](https://leetcode.com/problems/smallest-integer-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1015) | 🟡 Medium | +| November 26, 2025 | [2435](https://leetcode.com/problems/paths-in-matrix-whose-sum-is-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2435) | 🔴 Hard | From d42fae2c2749a1be12c7a1916130710798738da0 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Thu, 27 Nov 2025 00:35:40 +0000 Subject: [PATCH 563/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 06fd425..be03a7e 100644 --- a/README.md +++ b/README.md @@ -46,6 +46,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 24, 2025 | [1018](https://leetcode.com/problems/binary-prefix-divisible-by-5/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1018) | 🟢 Easy | | November 25, 2025 | [1015](https://leetcode.com/problems/smallest-integer-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1015) | 🟡 Medium | | November 26, 2025 | [2435](https://leetcode.com/problems/paths-in-matrix-whose-sum-is-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2435) | 🔴 Hard | +| November 27, 2025 | [3381](https://leetcode.com/problems/maximum-subarray-sum-with-length-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3381) | 🟡 Medium | From 5e67cebe888b8e2f197991bc9b31dbcad22b6fa4 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 28 Nov 2025 00:19:19 +0000 Subject: [PATCH 564/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/2872/gpt5-mini.md | 62 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 problems/2872/gpt5-mini.md diff --git a/problems/2872/gpt5-mini.md b/problems/2872/gpt5-mini.md new file mode 100644 index 0000000..4e2a84a --- /dev/null +++ b/problems/2872/gpt5-mini.md @@ -0,0 +1,62 @@ +# [Problem 2872: Maximum Number of K-Divisible Components](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We have a tree and node values; we can remove some edges so that every resulting connected component has sum of node values divisible by k. The total sum is divisible by k (given), so at least the whole tree is valid (no cuts). Cutting an edge splits a subtree from the rest; the sum of that subtree must be divisible by k. That suggests we should look at subtree sums modulo k. + +If we root the tree somewhere (say node 0), for any non-root node u, if the sum of the subtree rooted at u is divisible by k, then we may cut the edge between u and its parent and get an extra valid component. Cutting such an edge doesn't break the property for other disjoint subtrees. Intuitively we can cut every edge whose child-subtree sum % k == 0 independently. So count how many non-root nodes have subtree sum % k == 0; answer is that count + 1 (components = cuts + 1). DFS to compute subtree sum modulo k seems natural. + +## Refining the problem, round 2 thoughts +- Implementation detail: sums can be large but we only need them modulo k, so propagate s = (s + child_sum) % k. +- When a subtree sum % k == 0 for node u (u != root), we can increment cut count and return 0 to parent (simulate cutting so parent doesn't include the subtree sum). +- Edge cases: + - n == 1 -> no edges, answer should be 1. + - k == 1 -> every value % 1 == 0, every subtree sum % 1 == 0 -> we can cut all n-1 edges -> answer = n. +- Complexity: one DFS over n nodes, O(n) time and O(n) space for adjacency + recursion stack. For Python recursion, increase recursion limit (n up to 3e4). +- Correctness: cutting every edge where the child-subtree sum is 0 (mod k) is never harmful — those subtrees are independent of the rest and produce valid components. Since total sum divisible by k, root ends up with 0 mod k but we don't attempt to cut above root. + +## Attempted solution(s) +```python +import sys +from typing import List + +class Solution: + def maxKDivisibleComponents(self, n: int, edges: List[List[int]], values: List[int], k: int) -> int: + # Build adjacency list + adj = [[] for _ in range(n)] + for u, v in edges: + adj[u].append(v) + adj[v].append(u) + + sys.setrecursionlimit(1000000) + cuts = 0 + + def dfs(u: int, parent: int) -> int: + nonlocal cuts + # subtree sum modulo k + s = values[u] % k + for v in adj[u]: + if v == parent: + continue + child_mod = dfs(v, u) + s = (s + child_mod) % k + # If this subtree (excluding parent) sums to 0 mod k and it's not the root, + # we can cut the edge to parent and return 0 upwards. + if parent != -1 and s == 0: + cuts += 1 + return 0 + return s + + dfs(0, -1) + # components = cuts + 1 (initial component + each cut increases count by 1) + return cuts + 1 + +# Example usage: +# sol = Solution() +# print(sol.maxKDivisibleComponents(5, [[0,2],[1,2],[1,3],[2,4]], [1,8,1,4,4], 6)) # -> 2 +``` + +- Notes about the solution: + - Approach: Root the tree (node 0), DFS to compute subtree sums modulo k. Whenever a non-root subtree sums to 0 mod k, increment cut count and return 0 so parent doesn't include it. + - Time complexity: O(n) — each node/edge visited once. + - Space complexity: O(n) for adjacency list + O(n) recursion stack in worst case. + - Implementation details: use modulo arithmetic to avoid large integers; increase recursion limit for deep trees. \ No newline at end of file From 0b2c93b90f992858c464bc693bbe20152afd3215 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Fri, 28 Nov 2025 00:34:53 +0000 Subject: [PATCH 565/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index be03a7e..71a2112 100644 --- a/README.md +++ b/README.md @@ -47,6 +47,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 25, 2025 | [1015](https://leetcode.com/problems/smallest-integer-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1015) | 🟡 Medium | | November 26, 2025 | [2435](https://leetcode.com/problems/paths-in-matrix-whose-sum-is-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2435) | 🔴 Hard | | November 27, 2025 | [3381](https://leetcode.com/problems/maximum-subarray-sum-with-length-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3381) | 🟡 Medium | +| November 28, 2025 | [2872](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2872) | 🔴 Hard | From 679903dea98a862c2bad82e5fa6030e9c5134c6f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 29 Nov 2025 00:18:53 +0000 Subject: [PATCH 566/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/3512/gpt5-mini.md | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 problems/3512/gpt5-mini.md diff --git a/problems/3512/gpt5-mini.md b/problems/3512/gpt5-mini.md new file mode 100644 index 0000000..4219a44 --- /dev/null +++ b/problems/3512/gpt5-mini.md @@ -0,0 +1,34 @@ +# [Problem 3512: Minimum Operations to Make Array Sum Divisible by K](https://leetcode.com/problems/minimum-operations-to-make-array-sum-divisible-by-k/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +The operation decreases any single element by 1. Each operation reduces the total sum by exactly 1. To make the sum divisible by k we need to reduce the sum by an amount equal to sum(nums) % k (call it r). So at first glance the minimum number of operations should be r — the remainder itself — because every operation reduces sum by one and we need to remove exactly r (mod k) from the sum. + +Potential concerns: Are we allowed to keep decrementing elements below zero? The statement doesn't explicitly forbid negatives, but even if we cannot go negative, we can always distribute at most sum(nums) decrements across elements (down to zero). Note r = sum % k is strictly less than k and ≤ sum (if sum < k then r = sum), so we can always perform r decrements without needing to go below zero. Thus r operations are feasible. If r == 0 we need 0 ops. + +So the answer should be sum(nums) % k. + +## Refining the problem, round 2 thoughts +Edge cases: +- If sum % k == 0, return 0. +- If sum < k, sum % k == sum; we can zero out elements with exactly sum operations, which is valid. +- Large arrays or values: just summing is O(n) and fits constraints (n ≤ 1000, nums[i] ≤ 1000). + +No need for complex greedy or DP. Time complexity O(n) to compute the sum, space O(1). + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def minOperations(self, nums: List[int], k: int) -> int: + """ + Each decrement operation reduces the total sum by exactly 1. + Let r = sum(nums) % k. We must reduce the sum by r (mod k) to make it divisible by k. + Thus the minimum number of operations is r. + """ + return sum(nums) % k +``` +- Notes: + - Approach: compute remainder r = sum(nums) % k and return r. + - Time complexity: O(n) where n = len(nums) to compute the sum. + - Space complexity: O(1) additional space. \ No newline at end of file From de7da34a713d89cf664a4465f17af52f90d55e7f Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sat, 29 Nov 2025 00:34:46 +0000 Subject: [PATCH 567/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 71a2112..d02f4ea 100644 --- a/README.md +++ b/README.md @@ -48,6 +48,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 26, 2025 | [2435](https://leetcode.com/problems/paths-in-matrix-whose-sum-is-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2435) | 🔴 Hard | | November 27, 2025 | [3381](https://leetcode.com/problems/maximum-subarray-sum-with-length-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3381) | 🟡 Medium | | November 28, 2025 | [2872](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2872) | 🔴 Hard | +| November 29, 2025 | [3512](https://leetcode.com/problems/minimum-operations-to-make-array-sum-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3512) | 🟢 Easy | From d1df01e18c2b958ae542e2a058edd5087307a1b2 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 30 Nov 2025 00:21:50 +0000 Subject: [PATCH 568/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/1590/gpt5-mini.md | 49 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 problems/1590/gpt5-mini.md diff --git a/problems/1590/gpt5-mini.md b/problems/1590/gpt5-mini.md new file mode 100644 index 0000000..e403e25 --- /dev/null +++ b/problems/1590/gpt5-mini.md @@ -0,0 +1,49 @@ +# [Problem 1590: Make Sum Divisible by P](https://leetcode.com/problems/make-sum-divisible-by-p/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We need to remove the smallest contiguous subarray so that the remaining sum is divisible by p. Let total = sum(nums). If total % p == 0, return 0 immediately. Otherwise we need to remove a subarray whose sum % p equals total % p (call this need). So the problem becomes: find the shortest subarray with sum % p == need. Brute force O(n^2) checking all subarrays is too slow for n up to 1e5. + +Prefix sums modulo p can help: sum(i..j) % p = (pref[j] - pref[i-1]) % p. So for each prefix remainder pref_i, we want to find a previous prefix remainder pref_j such that (pref_i - pref_j) % p == need, equivalently pref_j == (pref_i - need) % p. We can keep a map from remainder -> latest index and update as we scan. Initialize map{0: -1} to represent empty prefix. Track minimal length. If minimal length equals the whole array, not allowed (must not remove whole array), return -1. + +## Refining the problem, round 2 thoughts +- Edge cases: need == 0 (already divisible) -> return 0. If no valid subarray found -> return -1. +- Must ensure we don't allow removing whole array: if best length == n -> return -1. +- Implementation detail: use modulo arithmetic carefully: (pref - need) % p gives target remainder in Python (non-negative). +- Complexity: single pass O(n) time, O(n) extra space for the map (at most n distinct remainders stored). Works for large nums since we only use remainders. +- Alternative: sliding window doesn't apply directly because elements are arbitrary and we want modulo condition, not fixed target sum. + +## Attempted solution(s) +```python +class Solution: + def minSubarray(self, nums: list[int], p: int) -> int: + total = sum(nums) + need = total % p + if need == 0: + return 0 + + pref = 0 + best = len(nums) + 1 + last_index = {0: -1} # remainder -> latest index + + for i, x in enumerate(nums): + pref = (pref + x) % p + # we need previous remainder such that (pref - prev) % p == need + target = (pref - need) % p + if target in last_index: + length = i - last_index[target] + if length < best: + best = length + # update with current prefix remainder (store latest index) + last_index[pref] = i + + if best <= 0 or best > len(nums) - 1: + # best == len(nums) means removing whole array (not allowed) + return -1 + return best +``` +- Notes about solution: + - Approach: Use prefix-sum remainders and a hashmap from remainder to latest index to find shortest subarray whose sum % p == need in one pass. + - Correctness: For each index i, if a previous index j has remainder equal to (pref_i - need) % p, then the subarray (j+1..i) has sum % p == need. We minimize i-j. + - Time complexity: O(n) single pass. + - Space complexity: O(n) for the hashmap (in worst case storing one entry per index). + - Implementation details: Initialize map with 0 -> -1 to allow subarrays starting at index 0. Ensure we do not return length equal to n (can't remove entire array). \ No newline at end of file From c8834ada919deeda9aa2afe65b7e77398744579a Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Sun, 30 Nov 2025 00:41:14 +0000 Subject: [PATCH 569/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index d02f4ea..6bf4514 100644 --- a/README.md +++ b/README.md @@ -49,6 +49,7 @@ This means you'll always find an AI-generated solution to compare with or learn | November 27, 2025 | [3381](https://leetcode.com/problems/maximum-subarray-sum-with-length-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3381) | 🟡 Medium | | November 28, 2025 | [2872](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2872) | 🔴 Hard | | November 29, 2025 | [3512](https://leetcode.com/problems/minimum-operations-to-make-array-sum-divisible-by-k/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3512) | 🟢 Easy | +| November 30, 2025 | [1590](https://leetcode.com/problems/make-sum-divisible-by-p/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1590) | 🟡 Medium | From 76ea5c8e6db62c734bb697036cd49cbd1e173309 Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 1 Dec 2025 00:24:00 +0000 Subject: [PATCH 570/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/2141/gpt5-mini.md | 55 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 problems/2141/gpt5-mini.md diff --git a/problems/2141/gpt5-mini.md b/problems/2141/gpt5-mini.md new file mode 100644 index 0000000..503fad8 --- /dev/null +++ b/problems/2141/gpt5-mini.md @@ -0,0 +1,55 @@ +# [Problem 2141: Maximum Running Time of N Computers](https://leetcode.com/problems/maximum-running-time-of-n-computers/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +I need to run n computers simultaneously using batteries, can swap batteries any time. Initially one battery per computer but later can move batteries around. The resources are battery minutes. If I want to run all n computers for T minutes, each computer needs T minutes of battery time, so total required is n*T minutes. Each battery can contribute at most its capacity, but because a single battery can't power more than one computer at the same time, when checking for feasibility of T we should cap each battery contribution at T (a battery of size > T can't contribute more than T simultaneous-minutes toward the "per-computer T" objective). So a necessary condition: sum(min(b_i, T)) >= n*T. Is it sufficient? Intuitively yes: we can slice battery minutes arbitrarily in integer minutes and reassign; if total capped contribution suffices, we can schedule to reach T. That suggests binary searching on T. + +Alternate naive approach: sort descending and greedily allocate largest batteries to computers then use remaining to extend times — but reasoning is cleaner with binary search on time and the sum(min(b_i, T)) check. + +Constraints: up to 1e5 batteries with capacities up to 1e9, sums up to ~1e14 -> Python int fine. Binary search upper bound can be sum(batteries)//n because that's maximum average minutes per computer. + +## Refining the problem, round 2 thoughts +Binary search T in range [0, sum(batteries)//n]. For each mid, compute total = sum(min(b, mid) for b in batteries). If total >= mid * n, mid is feasible; otherwise not. Use upper-mid bias (mid = (lo+hi+1)//2) to avoid infinite loop. Time complexity: O(m * log S) where m = len(batteries) and S is sum(batteries)//n (log S <= ~60). Space O(1). + +Edge cases: +- n equals number of batteries (still works). +- Some batteries very large; capping by mid handles it. +- Very small batteries many of them; summing still fine. + +This check is both necessary and sufficient because we can always split battery minutes across computers via swaps; capping per battery at T captures the fact a single battery cannot contribute more than T simultaneous minutes to the n computers' run of length T. + +## Attempted solution(s) +```python +from typing import List + +class Solution: + def maxRunTime(self, n: int, batteries: List[int]) -> int: + # Upper bound: average minutes available per computer + total_minutes = sum(batteries) + hi = total_minutes // n + lo = 0 + + # helper to test feasibility of running for t minutes + def can_run(t: int) -> bool: + # sum of contributions capped at t per battery + s = 0 + for b in batteries: + # early break if already enough to save work + if s >= t * n: + return True + s += b if b <= t else t + return s >= t * n + + # binary search for maximum feasible t + while lo < hi: + mid = (lo + hi + 1) // 2 + if can_run(mid): + lo = mid + else: + hi = mid - 1 + return lo +``` +- Notes: + - Approach: binary search on T with feasibility check sum(min(b_i, T)) >= n*T. + - Time complexity: O(m * log S) where m = len(batteries) and S = sum(batteries)//n (log S is small; in practice <= ~60). More concretely O(m * log(total_minutes/n)). + - Space complexity: O(1) extra space. + - Implementation details: early exit in can_run if running sum already reaches required threshold to avoid iterating whole array unnecessarily for larger T. \ No newline at end of file From 27b39a4c1cb07ad6d26eb0bb39b47aa8959cee8e Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Mon, 1 Dec 2025 00:44:39 +0000 Subject: [PATCH 571/573] Update README with LeetCode Daily Challenge --- README.md | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/README.md b/README.md index 6bf4514..a011562 100644 --- a/README.md +++ b/README.md @@ -16,6 +16,15 @@ This means you'll always find an AI-generated solution to compare with or learn # Problems we've attempted so far:
+Problems from December, 2025 + +| 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | +|--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| +| December 1, 2025 | [2141](https://leetcode.com/problems/maximum-running-time-of-n-computers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2141) | 🔴 Hard | + +
+ +
Problems from November, 2025 | 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | From 51ae32f5218f09e99e03d76e1beecbc2f4e3213d Mon Sep 17 00:00:00 2001 From: jeremymanning Date: Tue, 2 Dec 2025 00:21:29 +0000 Subject: [PATCH 572/573] Auto-solve daily LeetCode problem using GPT-5-mini --- problems/3623/gpt5-mini.md | 109 +++++++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 problems/3623/gpt5-mini.md diff --git a/problems/3623/gpt5-mini.md b/problems/3623/gpt5-mini.md new file mode 100644 index 0000000..c35087c --- /dev/null +++ b/problems/3623/gpt5-mini.md @@ -0,0 +1,109 @@ +# [Problem 3623: Count Number of Trapezoids I](https://leetcode.com/problems/count-number-of-trapezoids-i/description/?envType=daily-question) + +## Initial thoughts (stream-of-consciousness) +We need to count convex quadrilaterals with at least one pair of horizontal sides. The simplest realization: any trapezoid with horizontal sides uses two distinct y-levels (top and bottom). On each of those y-levels we must pick 2 distinct points (a horizontal segment). So for a pair of distinct y-levels y1 and y2, if y1 has A points (choose C(A,2) horizontal segments) and y2 has B points (C(B,2)), then naive total possibilities for that pair is C(A,2)*C(B,2). But not all such choices produce a valid trapezoid: if the top segment is strictly to the left of the bottom segment (their x-intervals disjoint) or strictly to the right, the four points do not form a convex quadrilateral with horizontal top & bottom. So for each pair of y-levels we must subtract the number of choices where the two horizontal segments are disjoint (top entirely left of bottom, or vice-versa). Summing over all pairs of y's directly is O(Y^2) which is too large (Y up to N). + +We need a global trick to avoid pairwise y enumeration. Note that total sum over unordered pairs of y's of C(A,2)*C(B,2) can be computed from the per-row values s_y = C(cnt_y,2) using combinatorics (sum_{i int: + # Map y -> list of x's + y_to_xs = defaultdict(list) + # Map x -> list of y's (we will use y indices) + x_to_ys = defaultdict(list) + for x, y in points: + y_to_xs[y].append(x) + x_to_ys[x].append(y) + + # Assign an index to each distinct y for compact arrays + y_list = list(y_to_xs.keys()) + y_index = {y: i for i, y in enumerate(y_list)} + m = len(y_list) + + # cnt_y, and initial right counts (all points are to the right of initial split) + cnt = [0] * m + for y, xs in y_to_xs.items(): + idx = y_index[y] + cnt[idx] = len(xs) + + def C2(k: int) -> int: + return k * (k - 1) // 2 + + # s_y = C(cnt_y, 2) + s = [C2(c) for c in cnt] + sum_s = sum(s) + + # total pairs over unordered y-pairs = sum_{i Date: Tue, 2 Dec 2025 00:37:07 +0000 Subject: [PATCH 573/573] Update README with LeetCode Daily Challenge --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index a011562..239e5d3 100644 --- a/README.md +++ b/README.md @@ -21,6 +21,7 @@ This means you'll always find an AI-generated solution to compare with or learn | 📆 Date | ⚙️ Problem | 📝 Link to notes | 🚦 Difficulty | |--------------|-------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------| | December 1, 2025 | [2141](https://leetcode.com/problems/maximum-running-time-of-n-computers/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2141) | 🔴 Hard | +| December 2, 2025 | [3623](https://leetcode.com/problems/count-number-of-trapezoids-i/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3623) | 🟡 Medium |