2015年6月26日
Codeforces Round #225 (Div. 1) C. Propagating tree dfs序+树状数组
摘要： C. Propagating treeTime Limit: 20 SecMemory Limit: 256 MB题目连接http://codeforces.com/contest/383/problem/CDescriptionIahub likes trees very much. Recent... 阅读全文
posted @ 2015-06-26 10:43 qscqesze 阅读(313) 评论(0) 推荐(0) 编辑
Codeforces Beta Round #29 (Div. 2, Codeforces format) C. Mail Stamps 离散化拓扑排序
摘要： C. Mail StampsTime Limit: 20 SecMemory Limit: 256 MB题目连接http://codeforces.com/problemset/problem/29/CDescriptionOne day Bob got a letter in an envelop... 阅读全文
posted @ 2015-06-26 10:04 qscqesze 阅读(407) 评论(0) 推荐(0) 编辑
Codeforces Beta Round #18 (Div. 2 Only) C. Stripe 前缀和
摘要： C. StripeTime Limit: 20 SecMemory Limit: 256 MB题目连接http://codeforces.com/problemset/problem/18/CDescriptionOnce Bob took a paper stripe of n squares (... 阅读全文
posted @ 2015-06-26 09:41 qscqesze 阅读(387) 评论(0) 推荐(0) 编辑