Crazy Tank Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Oth…

最少拦截系统 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)…

Naive and Silly Muggles Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/3276…

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=1513 题目大意：给一个字符串，问最少加多少个字母能成为回文串。 关键思想：要解决的是回文子序列问题而不是回文子串。回文子序…

LCM Walk Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5584 Descripti…

Count The CarriesTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hust.edu.cn/vjudge/contest/view.actio…

matrix Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5569 Description…

GSM Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others)Tot…

Invoker Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 122768/62768 K (Java/Other…

Scaring the Birds Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (J…

RSA Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Tot…

Running Median Time Limit: 1 Sec  Memory Limit: 256 MB 题目连接 　　http://acm.hdu.edu.cn/showproblem.php?…