USA Computing Olympiad (USACO) 2026–27

USACO identifies, motivates and trains high school computing students at all levels. It offers hundreds of hours of free online training and past problems with solutions, online contests in four divisions, and an intensive summer training camp for the top students in the USA. The top four students represent the USA at the International Olympiad in Informatics (IOI), and the top four female students at the European Girls' Olympiad in Informatics (EGOI).