摘要: 2243: [SDOI2011]染色Time Limit: 20 SecMemory Limit: 256 MB题目连接http://www.lydsy.com/JudgeOnline/problem.php?id=2243Description给定一棵有n个节点的无根树和m个操作,操作有2类:1、... 阅读全文
posted @ 2015-05-03 23:20 qscqesze 阅读(332) 评论(0) 推荐(0) 编辑