题目大意：两个人取n张牌，每次只能取1，2，4等2的幂次张，取完最后一张的获胜。问先手必胜吗？ 关键思想：有求SG值的方法，或者找规律的方法，仅贴代码不做讲述，到处都有。了解基础博弈论的话很容易理解。 代码如下： SG值…

Triathlon Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 4733   Accepte…

Segments Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 7739   Accepted: 2316 Descript…

772002画马尾 题目连接： http://acm.uestc.edu.cn/#/problem/show/1280 Description 众所周知772002很喜欢马尾，所以他决定画几幅马尾送给他的女朋友。 772…

Hard Code Time Limit: 1 Sec   Memory Limit: 256 MB 题目连接 http://acm.hust.edu.cn/vjudge/contest/view.action…

Find a path Time Limit: 1 Sec   Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5492 …

D. Searching Rectangles 题目连接： http://codeforces.com/contest/714/problem/D Description Filya just learned new g…

Reduced ID Numbers Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 7494   Accepted: 302…

1877: [SDOI2009]晨跑 Time Limit: 1 Sec   Memory Limit: 256 MB 题目连接 http://www.lydsy.com/JudgeOnline/problem…

Teacher Bo 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5762 Description Teacher BoBo is a geography teache…

3-idiots Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Othe…

C. Mike and Chocolate Thieves 题目连接： http://www.codeforces.com/contest/689/problem/C Description Bad news came …