2016年7月20日
Codeforces Round #363 (Div. 2) 698B Fix a Tree
摘要： D. Fix a Tree time limit per test 2 seconds memory limit per test 256 megabytes A tree is an undirected connected graph without cycles. Let's consider 阅读全文
posted @ 2016-07-20 11:43 Kcl886 阅读(264) 评论(0) 推荐(0) 编辑