Over 20,000 problems available: AMC 8/10/12 and AIME problems from 2010-2024; USAJMO/USAMO problems from 2002-2024; USACO problems from 2014 to 2024 (all divisions); all Codeforces, AtCoder and DMOJ problems. If you leave the search field blank, it returns all problems with the specified type.

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  • 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

ID Problem Name (click to add insights/hints, view summary of insights/hints and similar problems)
23042 2021 AIME II Problem 5
23041 2021 AIME II Problem 4
23040 2021 AIME II Problem 3
23039 2021 AIME II Problem 2
23038 2021 AIME II Problem 1
23037 2021 AIME I Problem 15
23036 2021 AIME I Problem 14
23035 2021 AIME I Problem 13
23034 2021 AIME I Problem 12
23033 2021 AIME I Problem 11
23032 2021 AIME I Problem 10
23031 2021 AIME I Problem 9
23030 2021 AIME I Problem 8
23029 2021 AIME I Problem 7
23028 2021 AIME I Problem 6
23027 2021 AIME I Problem 5
23026 2021 AIME I Problem 4
23025 2021 AIME I Problem 3
23024 2021 AIME I Problem 2
23023 2021 AIME I Problem 1
23022 2020 AIME II Problem 15
23021 2020 AIME II Problem 14
23020 2020 AIME II Problem 13
23019 2020 AIME II Problem 12
23018 2020 AIME II Problem 11
23017 2020 AIME II Problem 10
23016 2020 AIME II Problem 9
23015 2020 AIME II Problem 8
23014 2020 AIME II Problem 7
23013 2020 AIME II Problem 6
23012 2020 AIME II Problem 5
23011 2020 AIME II Problem 4
23010 2020 AIME II Problem 3
23009 2020 AIME II Problem 2
23008 2020 AIME II Problem 1
23007 2020 AIME I Problem 15
23006 2020 AIME I Problem 14
23005 2020 AIME I Problem 13
23004 2020 AIME I Problem 12
23003 2020 AIME I Problem 11
23002 2020 AIME I Problem 10
23001 2020 AIME I Problem 9
23000 2020 AIME I Problem 8
22999 2020 AIME I Problem 7
22998 2020 AIME I Problem 6
22997 2020 AIME I Problem 5
22996 2020 AIME I Problem 4
22995 2020 AIME I Problem 3
22994 2020 AIME I Problem 2
22993 2020 AIME I Problem 1
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