Coding Competitions

China NOI CSP-J/S 全国青少年信息学奥林匹克 CSP-J / CSP-S。problem practice and prep, C and C++. CCC Canadian Computing Competition — junior & senior. Past problems, cutoffs, strategy and prep timelines. USACO USA Computing Olympiad — bronze, silver, gold, platinum. Division-up strategy and problem help, C/C++.