摘要: 题目链接 https://acm.bnu.edu.cn/v3/problem_show.php?pid=52305 problem description In ICPCCamp, there are n cities and (n−1) (bidirectional) roads between 阅读全文
posted @ 2016-10-02 20:56 茶飘香~ 阅读(633) 评论(2) 推荐(2) 编辑