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# OJ: https://leetcode.com/problems/stone-game-viii/
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# Author: github.com/lzl124631x
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class Solution:
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    def stoneGameVIII(self, A: List[int]) -> int:
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        return reduce(
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            lambda memo, cur: max(memo, cur - memo), list(accumulate(A))[::-1][:-1]
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        )