随笔分类 -  CCPC

[gym104076][CCPC2022济南站L] Tree Distance
摘要：You are given an unrooted weighted tree T with vertices 1,2,…,n. Please answer some queries. We define dist(i,j) as the distance between v 阅读全文
posted @ 2023-02-07 20:29 灰鲭鲨 阅读(63) 评论(0) 推荐(0) 编辑

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