java.lang.Object
g1501_1600.s1561_maximum_number_of_coins_you_can_get.Solution

public class Solution extends Object
1561 - Maximum Number of Coins You Can Get\. Medium There are `3n` piles of coins of varying size, you and your friends will take piles of coins as follows: * In each step, you will choose **any** `3` piles of coins (not necessarily consecutive). * Of your choice, Alice will pick the pile with the maximum number of coins. * You will pick the next pile with the maximum number of coins. * Your friend Bob will pick the last pile. * Repeat until there are no more piles of coins. Given an array of integers `piles` where `piles[i]` is the number of coins in the ith pile. Return the maximum number of coins that you can have. **Example 1:** **Input:** piles = [2,4,1,2,7,8] **Output:** 9 **Explanation:** Choose the triplet (2, 7, 8), Alice Pick the pile with 8 coins, you the pile with **7** coins and Bob the last one. Choose the triplet (1, 2, 4), Alice Pick the pile with 4 coins, you the pile with **2** coins and Bob the last one. The maximum number of coins which you can have are: 7 + 2 = 9. On the other hand if we choose this arrangement (1, **2** , 8), (2, **4** , 7) you only get 2 + 4 = 6 coins which is not optimal. **Example 2:** **Input:** piles = [2,4,5] **Output:** 4 **Example 3:** **Input:** piles = [9,8,7,6,5,1,2,3,4] **Output:** 18 **Constraints:** * 3 <= piles.length <= 105 * `piles.length % 3 == 0` * 1 <= piles[i] <= 104
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • maxCoins

      public int maxCoins(int[] piles)