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)
21752 2008 AMC 12B Problem 25
21751 2008 AMC 12B Problem 24
21750 2008 AMC 12B Problem 23
21749 2008 AMC 12B Problem 22
21748 2008 AMC 12B Problem 21
21747 2008 AMC 12B Problem 20
21746 2008 AMC 12B Problem 19
21745 2008 AMC 12B Problem 18
21744 2008 AMC 12B Problem 17
21743 2008 AMC 12B Problem 16
21742 2008 AMC 12B Problem 15
21741 2008 AMC 12B Problem 14
21740 2008 AMC 12B Problem 13
21739 2008 AMC 12B Problem 12
21738 2008 AMC 12B Problem 11
21737 2008 AMC 12B Problem 10
21736 2008 AMC 12B Problem 9
21735 2008 AMC 12B Problem 8
21734 2008 AMC 12B Problem 7
21733 2008 AMC 12B Problem 6
21732 2008 AMC 12B Problem 5
21731 2008 AMC 12B Problem 4
21730 2008 AMC 12B Problem 3
21729 2008 AMC 12B Problem 2
21728 2008 AMC 12B Problem 1
21727 2008 AMC 12A Problem 25
21726 2008 AMC 12A Problem 24
21725 2008 AMC 12A Problem 23
21724 2008 AMC 12A Problem 22
21723 2008 AMC 12A Problem 21
21722 2008 AMC 12A Problem 20
21721 2008 AMC 12A Problem 19
21720 2008 AMC 12A Problem 18
21719 2008 AMC 12A Problem 17
21718 2008 AMC 12A Problem 16
21717 2008 AMC 12A Problem 15
21716 2008 AMC 12A Problem 14
21715 2008 AMC 12A Problem 13
21714 2008 AMC 12A Problem 12
21713 2008 AMC 12A Problem 11
21712 2008 AMC 12A Problem 10
21711 2008 AMC 12A Problem 9
21710 2008 AMC 12A Problem 8
21709 2008 AMC 12A Problem 7
21708 2008 AMC 12A Problem 6
21707 2008 AMC 12A Problem 5
21706 2008 AMC 12A Problem 4
21705 2008 AMC 12A Problem 3
21704 2008 AMC 12A Problem 2
21703 2008 AMC 12A Problem 1
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