昊昊爱运动 Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.uestc.edu.cn/#/problem/show/1256 Description 昊昊喜…

No Pain No Game Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/32768 K (Jav…

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=1041 题目大意：初始数字1。规则1变成01，0变成10。问经过N次完整变换后，有多少连续零对。 关键思想：考虑零对的直接来…

A – Noldbach problem 题面链接 http://codeforces.com/contest/17/problem/A 题面 Nick is interested in prime numb…

E. Anton and Tree 题目连接： http://codeforces.com/contest/734/problem/E Description Anton is growing a tree in his…

D. Birthday 题目连接： http://www.codeforces.com/contest/623/problem/D Description A MIPT student named Misha has a…

3101: N皇后 题目连接： http://www.lydsy.com/JudgeOnline/problem.php?id=3101 Description n*n的棋盘,在上面摆下n个皇后，使其两两间不能相互攻击……

1789: [Ahoi2008]Necklace Y型项链 Time Limit: 20 Sec  Memory Limit: 256 MB 题目连接 http://www.lydsy.com/Jud…

Toposort 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5638 Description There is a directed acyclic graph wi…

Random Walk Time Limit: 5000/2000 MS (Java/Others)    Memory Limit: 65535/65536 K (Java/Ot…

C. Mahmoud and a Message 题目连接： http://codeforces.com/contest/766/problem/C Description Mahmoud wrote a message…

  Arbitrage Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 11008   Accepted: 4629…