牛客练习赛32 A B C题解

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A题:Phrase String  贪心

题目链接:https://ac.nowcoder.com/acm/contest/272/A

详细题解:https://blog.csdn.net/xiang_6/article/details/84678421

B题:Xor Path  树上结点贡献次数

题目链接:https://ac.nowcoder.com/acm/contest/272/B

详细题解:https://blog.csdn.net/xiang_6/article/details/84678473

C题:Balls  概率期望&规律

题目链接:https://ac.nowcoder.com/acm/contest/272/C

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详细题解:https://blog.csdn.net/xiang_6/article/details/84678826

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