07 2018 档案

摘要:原题网址:http://codeforces.com/problemset/problem/620/E啊,从这篇博客开始我就不复制题目了,毕竟大家点进来都是为了我的AC代码。好的,这道题的题目大意就是,有一棵树,给它染色,刚开始的颜色是给定的,然后有两个操作:1,输入... 阅读全文
posted @ 2018-07-23 21:11 溡沭 阅读(135) 评论(0) 推荐(0) 编辑
摘要:Cerror is the mayor of city HangZhou. As you may know, the traffic system of this city is so terrible, that there are traffic jams eve... 阅读全文
posted @ 2018-07-17 15:57 溡沭 阅读(237) 评论(0) 推荐(0) 编辑

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