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(89) 评论(0) 推荐(0)