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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)
21652 2006 AMC 12B Problem 25
21651 2006 AMC 12B Problem 24
21650 2006 AMC 12B Problem 23
21649 2006 AMC 12B Problem 22
21648 2006 AMC 12B Problem 21
21647 2006 AMC 12B Problem 20
21646 2006 AMC 12B Problem 19
21645 2006 AMC 12B Problem 18
21644 2006 AMC 12B Problem 17
21643 2006 AMC 12B Problem 16
21642 2006 AMC 12B Problem 15
21641 2006 AMC 12B Problem 14
21640 2006 AMC 12B Problem 13
21639 2006 AMC 12B Problem 12
21638 2006 AMC 12B Problem 11
21637 2006 AMC 12B Problem 10
21636 2006 AMC 12B Problem 9
21635 2006 AMC 12B Problem 8
21634 2006 AMC 12B Problem 7
21633 2006 AMC 12B Problem 6
21632 2006 AMC 12B Problem 5
21631 2006 AMC 12B Problem 4
21630 2006 AMC 12B Problem 3
21629 2006 AMC 12B Problem 2
21628 2006 AMC 12B Problem 1
21627 2006 AMC 12A Problem 25
21626 2006 AMC 12A Problem 24
21625 2006 AMC 12A Problem 23
21624 2006 AMC 12A Problem 22
21623 2006 AMC 12A Problem 21
21622 2006 AMC 12A Problem 20
21621 2006 AMC 12A Problem 19
21620 2006 AMC 12A Problem 18
21619 2006 AMC 12A Problem 17
21618 2006 AMC 12A Problem 16
21617 2006 AMC 12A Problem 15
21616 2006 AMC 12A Problem 14
21615 2006 AMC 12A Problem 13
21614 2006 AMC 12A Problem 12
21613 2006 AMC 12A Problem 11
21612 2006 AMC 12A Problem 10
21611 2006 AMC 12A Problem 9
21610 2006 AMC 12A Problem 8
21609 2006 AMC 12A Problem 7
21608 2006 AMC 12A Problem 6
21607 2006 AMC 12A Problem 5
21606 2006 AMC 12A Problem 4
21605 2006 AMC 12A Problem 3
21604 2006 AMC 12A Problem 2
21603 2006 AMC 12A Problem 1
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