PsTree

487-3279 Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 232876   Accepted: 40603 Description Businesses like to have memorable telephone numbers. One way to m

Crazy Search Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 21585   Accepted: 6101 Description Many people like to solve hard puzzles some of which may lead t

Power Strings TimeLimit: 1 Second   MemoryLimit: 32 Megabyte Totalsubmit: 1791   Accepted: 528   Description Given two strings a and b we define a*b to be their concatenation. For example, if