http://acm.uva.es/problemset/
http://cs.kaist.ac.kr/~acmicpc/2001/index.html
http://icpc.baylor.edu/past/icpc2002/regionals/report.html
http://www.u-aizu.ac.jp/conference/ACM/
http://icpc.baylor.edu/past/default.htm
ECODERS
http://www.ecoders.co.kr
