Class Solution


  • public class Solution
    extends Object
    1140 - Stone Game II\. Medium Alice and Bob continue their games with piles of stones. There are a number of piles **arranged in a row** , and each pile has a positive integer number of stones `piles[i]`. The objective of the game is to end with the most stones. Alice and Bob take turns, with Alice starting first. Initially, `M = 1`. On each player's turn, that player can take **all the stones** in the **first** `X` remaining piles, where `1 <= X <= 2M`. Then, we set `M = max(M, X)`. The game continues until all the stones have been taken. Assuming Alice and Bob play optimally, return the maximum number of stones Alice can get. **Example 1:** **Input:** piles = [2,7,9,4,4] **Output:** 10 **Explanation:** If Alice takes one pile at the beginning, Bob takes two piles, then Alice takes 2 piles again. Alice can get 2 + 4 + 4 = 10 piles in total. If Alice takes two piles at the beginning, then Bob can take all three piles left. In this case, Alice get 2 + 7 = 9 piles in total. So we return 10 since it's larger. **Example 2:** **Input:** piles = [1,2,3,4,5,100] **Output:** 104 **Constraints:** * `1 <= piles.length <= 100` * 1 <= piles[i] <= 104
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • stoneGameII

        public int stoneGameII​(int[] piles)