搞ACM去专业的online judge网站咯，比如
http://acm.zju.edu.cn
ZJU Online Judge
http://acm.uva.es/
Valladolid Programming Contest Site
http://acm.timus.ru
Ural State University Problem Set Archive with Online Judge System
http://ace.delos.com/usacogate
USACO training ground
http://acm.sgu.ru/
Saratov State University :: Online Contester
http://www.topcoder.com
TopCoder
http://ipsc.ksp.sk
Internet Problem Solving Contest |
