摘要: Paint the Tree 题目来源: Moscow Pre Finals Workshop 2018 Day 5 C 题目大意: 一棵$n(n\le2000)$个点的树,有$m(2 include include inline int getint() { register char ch; w 阅读全文
posted @ 2018-12-03 16:41 skylee03 阅读(264) 评论(0) 推荐(0) 编辑