CA Loves GCD 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5656 Description CA is a fine comrade who loves t…

Can you find it Time Limit: 1 Sec   Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5…

小希的迷宫 Time Limit: 20 Sec  Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=1272 D…

Billboard Time Limit: 1 Sec  Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=279…

USACO ORZ Time Limit: 5000/1500 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Othe…

A. Kalevitch and Chess 题目连接： http://www.codeforces.com/contest/7/problem/A Description A famous Berland’…

E. Product Sum 题目连接： http://www.codeforces.com/contest/631/problem/E Description Blake is the boss of Kris, ho…

Power Network Time Limit: 2000MS   Memory Limit: 32768K Total Submissions: 18309   Accepted: 9643 De…

Popular Cows Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 13835 Accepted: 5484 Description Every…

D-City Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=4496 Description…

Codeforces Beta Round #83 (Div. 1 Only) A. Dorm Water Supply 题意 给你一个n点m边的图，保证每个点的入度和出度最多为1 如果这个点入度为0，那么这个点就是水龙…

B. Before an Exam 题目连接： http://www.codeforces.com/contest/4/problem/B Description Tomorrow Peter has a Biology…