Prison Break Time Limit: 5000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/O…

统计难题 Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131070/65535 K (Java/Others)T…

Common Substrings Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 5495  …

PM2.5 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description Now…

Cat VS Dog Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 125536/65536 K (Java/Ot…

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=1060 题目大意：求N^N的最高位数字。 关键思想：换底公式使结果变为10^(N*log10(N))，再除以10^(digi…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 14447   Accepted: 661…

King’s Phone 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5641 Description In a military parade, the …

D. Count Good Substrings 题目连接： http://codeforces.com/contest/451/problem/D Description We call a string good, …

E. Different Subsets For All Tuples 题目连接： http://www.codeforces.com/contest/660/problem/E Description For a se…

Assign the task Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Ja…

Friend Chains Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/…