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QOJ

Category: Olympiad in Informatics

Category#(Contests)#(Problems)
Asia-Pacific Informatics Olympiad (APIO)1545
Baltic - BOI (Baltic Olympiad in Informatics)1648
Canada - CCO (Canadian Computing Olympiad)2060
Central Europe - CEOI (Central European Olympiad in Informatics)1648
China - China Team Homework (集训队作业 / 集训队互测)50150
China - CSP-J/S726
China - CTS/CTSC (China Team Selection) (中国国家队选拔)1854
China - CTT (China Team Training) (清华集训 / 北大集训)36108
China - IOI China Team Training (中国国家队集训)1648
China - Misc2276
China - NOI (National Olympiad in Informatics)2472
China - NOIP (National Olympiad in Informatics in Provinces)312
China - Provincial Team Selection (省队选拔)3721118
China - WC (Winter Camp) (冬令营 / 候选队选拔)927
Croatia - Croatian Open Competition In Informatics (COCI)525
Croatia - IOI/CEOI Team Selection (Izborne Pripreme)618
Europe - European Junior Olympiad in Informatics (EJOI)1030
International - IOI (International Olympiad in Informatics)2575
Japan - JOI (Japanese Olympiad in Informatics) (日本情報オリンピック)1155
Japan - JOI Open Contest (日本情報オリンピック 通信教育)928
Japan - JOISC (Japanese Olympiad in Informatics Spring Camp) (日本情報オリンピック 春季トレーニング合宿)48147
Kazakhstan - IZhO (International Zhautykov Olympiad) (Жаутыковская Олимпиада по Математике, Физике и Информатике)412
Korea - KOI TST (Korea IOI Team Selection Test) (국제정보올림피아드 대표학생 선발고사)1040
Nordic - Nordic Olympiad in Informatics13
Poland - Olimpiada Informatyczna (Polish Olympiad in Informatics)1032
Poland - Potyczki Algorytmiczne3187
Romania - RMI (Romanian Master of Informatics)618
Singapore - National Olympiad in Informatics525
Ukraine - Всеукраїнської олімпіади з інформатики312
United States - USACO (USA Computing Olympiad)26