Over __ 20,000__ problems available. AMC 8/10/12 and AIME problems from 2010-2023; USAJMO/USAMO problems from
2002-2023 available. USACO problems from 2014 to 2023 (all divisions). Codeforces, AtCoder, DMOJ problems are added daily
around 04:00 AM UTC,

**AMC 8:**[year] AMC 8 Problem #,*Ex: 2013 AMC 8 Problem 1***AMC 10:**[year] AMC 10A Problem # OR [year] AMC 10B Problem #,*Ex: 2015 AMC 10A Problem 16***AMC 12:**[year] AMC 12A Problem # OR [year] AMC 12B Problem #,*Ex: 2021 AMC 12B Problem 25***AIME:**[year] AIME I Problem # OR [year] AIME II Problem #,*Ex: 2013 AIME I Problem 8***USAJMO/USAMO:**[year] USAJMO/USAMO Problem #,*Ex: 2023 USAJMO Problem 1***Codeforces:**Codeforces [contest id (e.g. 101)][problem id (e.g. A, B, C)]: [Codeforces problem name],*Ex: Codeforces 1336F: Journey***AtCoder:**AtCoder [contest id (e.g. ABC314, ARC164, ZONE2021)]: [problem id (A, B, C)]. [Problem name],*Ex: AtCoder ZONE2021: E. Sneaking***DMOJ:**DMOJ [contest name (if applicable)] [problem number (e.g. P1)] - [Problem name],*Ex: DMOJ Yet Another Contest 3 P1 - Shell Swap Scam***USACO:**[year] [contest month (e.g. January, US Open)], [division (e.g. Gold)]: [Problem name],*Ex: USACO 2023 US Open Contest, Bronze: Rotate and Shift*

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