摘要: 传送门:http://codeforces.com/problemset/problem/711/C 题目: C. Coloring Trees time limit per test 2 seconds memory limit per test 256 megabytes input stand 阅读全文
posted @ 2016-08-30 15:46 weeping 阅读(255) 评论(0) 推荐(0) 编辑