Class Solution
java.lang.Object
g1501_1600.s1561_maximum_number_of_coins_you_can_get.Solution
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 Summary
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Method Summary
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Constructor Details
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Solution
public Solution()
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Method Details
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maxCoins
public int maxCoins(int[] piles)
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