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)
22402 2021 AMC 12B Problem 25
22401 2021 AMC 12B Problem 24
22400 2021 AMC 12B Problem 23
22399 2021 AMC 12B Problem 22
22398 2021 AMC 12B Problem 21
22397 2021 AMC 12B Problem 20
22396 2021 AMC 12B Problem 19
22395 2021 AMC 12B Problem 18
22394 2021 AMC 12B Problem 17
22393 2021 AMC 12B Problem 16
22392 2021 AMC 12B Problem 15
22391 2021 AMC 12B Problem 14
22390 2021 AMC 12B Problem 13
22389 2021 AMC 12B Problem 12
22388 2021 AMC 12B Problem 11
22387 2021 AMC 12B Problem 10
22386 2021 AMC 12B Problem 9
22385 2021 AMC 12B Problem 8
22384 2021 AMC 12B Problem 7
22383 2021 AMC 12B Problem 6
22382 2021 AMC 12B Problem 5
22381 2021 AMC 12B Problem 4
22380 2021 AMC 12B Problem 3
22379 2021 AMC 12B Problem 2
22378 2021 AMC 12B Problem 1
22377 2021 AMC 12A Problem 25
22376 2021 AMC 12A Problem 24
22375 2021 AMC 12A Problem 23
22374 2021 AMC 12A Problem 22
22373 2021 AMC 12A Problem 21
22372 2021 AMC 12A Problem 20
22371 2021 AMC 12A Problem 19
22370 2021 AMC 12A Problem 18
22369 2021 AMC 12A Problem 17
22368 2021 AMC 12A Problem 16
22367 2021 AMC 12A Problem 15
22366 2021 AMC 12A Problem 14
22365 2021 AMC 12A Problem 13
22364 2021 AMC 12A Problem 12
22363 2021 AMC 12A Problem 11
22362 2021 AMC 12A Problem 10
22361 2021 AMC 12A Problem 9
22360 2021 AMC 12A Problem 8
22359 2021 AMC 12A Problem 7
22358 2021 AMC 12A Problem 6
22357 2021 AMC 12A Problem 5
22356 2021 AMC 12A Problem 4
22355 2021 AMC 12A Problem 3
22354 2021 AMC 12A Problem 2
22353 2021 AMC 12A Problem 1
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