随笔分类 -  图论--直径

（jzoj snow的追寻）线段树维护树的直径
摘要：jzoj snow的追寻 DFS序上搞 合并暴力和，记录最长链和当前最远点，距离跑LCA # include <stdio.h> # include <stdlib.h> # include <iostream> # include <algorithm> # include <string.h> 阅读全文
posted @ 2017-12-09 11:20 Cyhlnj 阅读(306) 评论(0) 推荐(0)