On a table are N cards, with a positive integer printed on the front and back of each card (possibly different). We flip any number of cards, and after we choose one card. If the number X on the back of the chosen card is not on the front of any card…
1647: [Usaco2007 Open]Fliptile 翻格子游戏 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 423 Solved: 173[Submit][Status][Discuss] Description Farmer John knows that an intellectually satisfied cow is a happy cow who will give more milk. He has arranged a…
问题 B: [Usaco2007 Open]Fliptile 翻格子游戏 时间限制: 5 Sec 内存限制: 128 MB 题目描述 Farmer John knows that an intellectually satisfied cow is a happy cow who will give more milk. He has arranged a brainy activity for cows in which they manipulate an M x N grid (1 <=…
1647: [Usaco2007 Open]Fliptile 翻格子游戏 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 702 Solved: 281[Submit][Status][Discuss] Description Farmer John knows that an intellectually satisfied cow is a happy cow who will give more milk. He has arranged a…
问题 B: [Usaco2007 Open]Fliptile 翻格子游戏 时间限制: 5 Sec 内存限制: 128 MB 题目描述 Farmer John knows that an intellectually satisfied cow is a happy cow who will give more milk. He has arranged a brainy activity for cows in which they manipulate an M x N grid (1 <=…
翻纸牌游戏 Time Limit: 9000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description 有一种纸牌游戏,很有意思,给你N张纸牌,一字排开,纸牌有正反两面,开始的纸牌可能是一种乱的状态(有些朝正,有些朝反),现在你需要整理这些纸牌.但是麻烦的是,每当你翻一张纸牌(由正翻到反,或者有反翻到正)时,他左右两张纸牌(最左边和最右边的纸牌,只会影响附近一张)也必须跟着翻动,现…
翻纸牌游戏 Time Limit: 9000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1740 Accepted Submission(s): 592 Problem Description 有一种纸牌游戏,很有意思,给你N张纸牌,一字排开,纸牌有正反两面,开始的纸牌可能是一种乱的状态(有些朝正,有些朝反),现在你需要整理这些纸牌.但是麻烦的是,每当你翻一…