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)
22302 2019 AMC 12B Problem 25
22301 2019 AMC 12B Problem 24
22300 2019 AMC 12B Problem 23
22299 2019 AMC 12B Problem 22
22298 2019 AMC 12B Problem 21
22297 2019 AMC 12B Problem 20
22296 2019 AMC 12B Problem 19
22295 2019 AMC 12B Problem 18
22294 2019 AMC 12B Problem 17
22293 2019 AMC 12B Problem 16
22292 2019 AMC 12B Problem 15
22291 2019 AMC 12B Problem 14
22290 2019 AMC 12B Problem 13
22289 2019 AMC 12B Problem 12
22288 2019 AMC 12B Problem 11
22287 2019 AMC 12B Problem 10
22286 2019 AMC 12B Problem 9
22285 2019 AMC 12B Problem 8
22284 2019 AMC 12B Problem 7
22283 2019 AMC 12B Problem 6
22282 2019 AMC 12B Problem 5
22281 2019 AMC 12B Problem 4
22280 2019 AMC 12B Problem 3
22279 2019 AMC 12B Problem 2
22278 2019 AMC 12B Problem 1
22277 2019 AMC 12A Problem 25
22276 2019 AMC 12A Problem 24
22275 2019 AMC 12A Problem 23
22274 2019 AMC 12A Problem 22
22273 2019 AMC 12A Problem 21
22272 2019 AMC 12A Problem 20
22271 2019 AMC 12A Problem 19
22270 2019 AMC 12A Problem 18
22269 2019 AMC 12A Problem 17
22268 2019 AMC 12A Problem 16
22267 2019 AMC 12A Problem 15
22266 2019 AMC 12A Problem 14
22265 2019 AMC 12A Problem 13
22264 2019 AMC 12A Problem 12
22263 2019 AMC 12A Problem 11
22262 2019 AMC 12A Problem 10
22261 2019 AMC 12A Problem 9
22260 2019 AMC 12A Problem 8
22259 2019 AMC 12A Problem 7
22258 2019 AMC 12A Problem 6
22257 2019 AMC 12A Problem 5
22256 2019 AMC 12A Problem 4
22255 2019 AMC 12A Problem 3
22254 2019 AMC 12A Problem 2
22253 2019 AMC 12A Problem 1
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