随笔分类 -  图论-树链剖分

poj 3237 Tree 树链剖分+线段树
摘要：Description You are given a tree with N nodes. The tree’s nodes are numbered 1 through N and its edges are numbered 1 through N − 1. Each edge is asso 阅读全文
posted @ 2016-08-07 09:57 hxer 阅读(340) 评论(0) 推荐(0)