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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)
21502 2003 AMC 12B Problem 25
21501 2003 AMC 12B Problem 24
21500 2003 AMC 12B Problem 23
21499 2003 AMC 12B Problem 22
21498 2003 AMC 12B Problem 21
21497 2003 AMC 12B Problem 20
21496 2003 AMC 12B Problem 19
21495 2003 AMC 12B Problem 18
21494 2003 AMC 12B Problem 17
21493 2003 AMC 12B Problem 16
21492 2003 AMC 12B Problem 15
21491 2003 AMC 12B Problem 14
21490 2003 AMC 12B Problem 13
21489 2003 AMC 12B Problem 12
21488 2003 AMC 12B Problem 11
21487 2003 AMC 12B Problem 10
21486 2003 AMC 12B Problem 9
21485 2003 AMC 12B Problem 8
21484 2003 AMC 12B Problem 7
21483 2003 AMC 12B Problem 6
21482 2003 AMC 12B Problem 5
21481 2003 AMC 12B Problem 4
21480 2003 AMC 12B Problem 3
21479 2003 AMC 12B Problem 2
21478 2003 AMC 12B Problem 1
21477 2003 AMC 12A Problem 25
21476 2003 AMC 12A Problem 24
21475 2003 AMC 12A Problem 23
21474 2003 AMC 12A Problem 22
21473 2003 AMC 12A Problem 21
21472 2003 AMC 12A Problem 20
21471 2003 AMC 12A Problem 19
21470 2003 AMC 12A Problem 18
21469 2003 AMC 12A Problem 17
21468 2003 AMC 12A Problem 16
21467 2003 AMC 12A Problem 15
21466 2003 AMC 12A Problem 14
21465 2003 AMC 12A Problem 13
21464 2003 AMC 12A Problem 12
21463 2003 AMC 12A Problem 11
21462 2003 AMC 12A Problem 10
21461 2003 AMC 12A Problem 9
21460 2003 AMC 12A Problem 8
21459 2003 AMC 12A Problem 7
21458 2003 AMC 12A Problem 6
21457 2003 AMC 12A Problem 5
21456 2003 AMC 12A Problem 4
21455 2003 AMC 12A Problem 3
21454 2003 AMC 12A Problem 2
21453 2003 AMC 12A Problem 1
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