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)
22102 2015 AMC 12B Problem 25
22101 2015 AMC 12B Problem 24
22100 2015 AMC 12B Problem 23
22099 2015 AMC 12B Problem 22
22098 2015 AMC 12B Problem 21
22097 2015 AMC 12B Problem 20
22096 2015 AMC 12B Problem 19
22095 2015 AMC 12B Problem 18
22094 2015 AMC 12B Problem 17
22093 2015 AMC 12B Problem 16
22092 2015 AMC 12B Problem 15
22091 2015 AMC 12B Problem 14
22090 2015 AMC 12B Problem 13
22089 2015 AMC 12B Problem 12
22088 2015 AMC 12B Problem 11
22087 2015 AMC 12B Problem 10
22086 2015 AMC 12B Problem 9
22085 2015 AMC 12B Problem 8
22084 2015 AMC 12B Problem 7
22083 2015 AMC 12B Problem 6
22082 2015 AMC 12B Problem 5
22081 2015 AMC 12B Problem 4
22080 2015 AMC 12B Problem 3
22079 2015 AMC 12B Problem 2
22078 2015 AMC 12B Problem 1
22077 2015 AMC 12A Problem 25
22076 2015 AMC 12A Problem 24
22075 2015 AMC 12A Problem 23
22074 2015 AMC 12A Problem 22
22073 2015 AMC 12A Problem 21
22072 2015 AMC 12A Problem 20
22071 2015 AMC 12A Problem 19
22070 2015 AMC 12A Problem 18
22069 2015 AMC 12A Problem 17
22068 2015 AMC 12A Problem 16
22067 2015 AMC 12A Problem 15
22066 2015 AMC 12A Problem 14
22065 2015 AMC 12A Problem 13
22064 2015 AMC 12A Problem 12
22063 2015 AMC 12A Problem 11
22062 2015 AMC 12A Problem 10
22061 2015 AMC 12A Problem 9
22060 2015 AMC 12A Problem 8
22059 2015 AMC 12A Problem 7
22058 2015 AMC 12A Problem 6
22057 2015 AMC 12A Problem 5
22056 2015 AMC 12A Problem 4
22055 2015 AMC 12A Problem 3
22054 2015 AMC 12A Problem 2
22053 2015 AMC 12A Problem 1
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