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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)
21452 2002 AMC 12B Problem 25
21451 2002 AMC 12B Problem 24
21450 2002 AMC 12B Problem 23
21449 2002 AMC 12B Problem 22
21448 2002 AMC 12B Problem 21
21447 2002 AMC 12B Problem 20
21446 2002 AMC 12B Problem 19
21445 2002 AMC 12B Problem 18
21444 2002 AMC 12B Problem 17
21443 2002 AMC 12B Problem 16
21442 2002 AMC 12B Problem 15
21441 2002 AMC 12B Problem 14
21440 2002 AMC 12B Problem 13
21439 2002 AMC 12B Problem 12
21438 2002 AMC 12B Problem 11
21437 2002 AMC 12B Problem 10
21436 2002 AMC 12B Problem 9
21435 2002 AMC 12B Problem 8
21434 2002 AMC 12B Problem 7
21433 2002 AMC 12B Problem 6
21432 2002 AMC 12B Problem 5
21431 2002 AMC 12B Problem 4
21430 2002 AMC 12B Problem 3
21429 2002 AMC 12B Problem 2
21428 2002 AMC 12B Problem 1
21427 2002 AMC 12A Problem 25
21426 2002 AMC 12A Problem 24
21425 2002 AMC 12A Problem 23
21424 2002 AMC 12A Problem 22
21423 2002 AMC 12A Problem 21
21422 2002 AMC 12A Problem 20
21421 2002 AMC 12A Problem 19
21420 2002 AMC 12A Problem 18
21419 2002 AMC 12A Problem 17
21418 2002 AMC 12A Problem 16
21417 2002 AMC 12A Problem 15
21416 2002 AMC 12A Problem 14
21415 2002 AMC 12A Problem 13
21414 2002 AMC 12A Problem 12
21413 2002 AMC 12A Problem 11
21412 2002 AMC 12A Problem 10
21411 2002 AMC 12A Problem 9
21410 2002 AMC 12A Problem 8
21409 2002 AMC 12A Problem 7
21408 2002 AMC 12A Problem 6
21407 2002 AMC 12A Problem 5
21406 2002 AMC 12A Problem 4
21405 2002 AMC 12A Problem 3
21404 2002 AMC 12A Problem 2
21403 2002 AMC 12A Problem 1
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