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)
22352 2020 AMC 12B Problem 25
22351 2020 AMC 12B Problem 24
22350 2020 AMC 12B Problem 23
22349 2020 AMC 12B Problem 22
22348 2020 AMC 12B Problem 21
22347 2020 AMC 12B Problem 20
22346 2020 AMC 12B Problem 19
22345 2020 AMC 12B Problem 18
22344 2020 AMC 12B Problem 17
22343 2020 AMC 12B Problem 16
22342 2020 AMC 12B Problem 15
22341 2020 AMC 12B Problem 14
22340 2020 AMC 12B Problem 13
22339 2020 AMC 12B Problem 12
22338 2020 AMC 12B Problem 11
22337 2020 AMC 12B Problem 10
22336 2020 AMC 12B Problem 9
22335 2020 AMC 12B Problem 8
22334 2020 AMC 12B Problem 7
22333 2020 AMC 12B Problem 6
22332 2020 AMC 12B Problem 5
22331 2020 AMC 12B Problem 4
22330 2020 AMC 12B Problem 3
22329 2020 AMC 12B Problem 2
22328 2020 AMC 12B Problem 1
22327 2020 AMC 12A Problem 25
22326 2020 AMC 12A Problem 24
22325 2020 AMC 12A Problem 23
22324 2020 AMC 12A Problem 22
22323 2020 AMC 12A Problem 21
22322 2020 AMC 12A Problem 20
22321 2020 AMC 12A Problem 19
22320 2020 AMC 12A Problem 18
22319 2020 AMC 12A Problem 17
22318 2020 AMC 12A Problem 16
22317 2020 AMC 12A Problem 15
22316 2020 AMC 12A Problem 14
22315 2020 AMC 12A Problem 13
22314 2020 AMC 12A Problem 12
22313 2020 AMC 12A Problem 11
22312 2020 AMC 12A Problem 10
22311 2020 AMC 12A Problem 9
22310 2020 AMC 12A Problem 8
22309 2020 AMC 12A Problem 7
22308 2020 AMC 12A Problem 6
22307 2020 AMC 12A Problem 5
22306 2020 AMC 12A Problem 4
22305 2020 AMC 12A Problem 3
22304 2020 AMC 12A Problem 2
22303 2020 AMC 12A Problem 1
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