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摘要: 链接:https://ac.nowcoder.com/acm/contest/11255/E 来源:牛客网 题目描述 Bob has a tree with nn nodes and the weight of i-th node is wiwi. But Bob forgot w1...nw1.. 阅读全文
posted @ 2021-07-28 23:10 脂环 阅读(285) 评论(3) 推荐(1) 编辑