摘要: 题目链接:http://poj.org/problem?id=3237You are given a tree withNnodes. The tree’s nodes are numbered 1 throughNand its edges are numbered 1 throughN− 1. ... 阅读全文
posted @ 2015-03-17 18:15 huangxf 阅读(245) 评论(0) 推荐(0) 编辑