2018年2月6日
POJ [P2631] Roads in the North
摘要： 树的直径 树的直径求法： 1. 任取一点u，找到树上距u最远的点s 2. 找到树上距s点最远的点t，s t的距离即为所求 cpp include include include include include include include using namespace std; int init 阅读全文
posted @ 2018-02-06 11:06 Mr_Wolfram 阅读(116) 评论(0) 推荐(0)