2018年8月28日
[AGC018]F - Two Trees
摘要： Time limit : 2sec / Memory limit : 256MB Problem Statement There are two rooted trees, each with $N$ vertices. The vertices of each tree are numbered 阅读全文
posted @ 2018-08-28 16:41 栓犬 阅读(254) 评论(0) 推荐(0)