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IOI - International Olympics in Informatics - http://www.ioinformatics.org/
An official site describing the history of the contest, official regulations, future locations and members in many countries of the world. |
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International Olympiad in Informatics - http://olympiads.win.tue.nl/ioi/
Annual computing-science competition for talented senior high-school students. Contains links to the homepages for every year and status information about the organisation of the event. |
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USACO Training Program Gateway - http://ace.delos.com/usacogate
Training pages for C++/Pascal programmers who intend to particapate at IOI. |
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American Computer Science League - http://www.acsl.org/
ACSL organizes computer science contests and computer programming contests for junior and senior high school students. |
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USA Computing Olympiad (USACO) - http://oldweb.uwp.edu/academic/mathematics/usaco/
USACO supports pre-college computing around the world through computer programming competitions and training materials. Site contains details about current and previous competitions, alumni, training, and registration. |