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Contests

Computer Science Contests

USACO and ACSL are the most influential international CS contests — algorithmic ability is the core credential for CS applicants.

USACO

USA Computing OlympiadLearn more

The official US computing olympiad with four promotion divisions — Bronze, Silver, Gold and Platinum. One of the most valued credentials in CS.

Suitable Grades
Grade 6-12; promotion by programming level
Contest Time
Four contests from December to March
Format
3-4 algorithmic programming problems, 4 hours, online submission

ACSL

American Computer Science LeagueLearn more

A long-running league covering computer theory, data structures and programming, with divisions from elementary to senior high school.

Suitable Grades
Grade 3-12 across multiple age divisions
Contest Time
Four rounds from December to May
Format
Written theory test plus programming problems, online

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