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)
22252 2018 AMC 12B Problem 25
22251 2018 AMC 12B Problem 24
22250 2018 AMC 12B Problem 23
22249 2018 AMC 12B Problem 22
22248 2018 AMC 12B Problem 21
22247 2018 AMC 12B Problem 20
22246 2018 AMC 12B Problem 19
22245 2018 AMC 12B Problem 18
22244 2018 AMC 12B Problem 17
22243 2018 AMC 12B Problem 16
22242 2018 AMC 12B Problem 15
22241 2018 AMC 12B Problem 14
22240 2018 AMC 12B Problem 13
22239 2018 AMC 12B Problem 12
22238 2018 AMC 12B Problem 11
22237 2018 AMC 12B Problem 10
22236 2018 AMC 12B Problem 9
22235 2018 AMC 12B Problem 8
22234 2018 AMC 12B Problem 7
22233 2018 AMC 12B Problem 6
22232 2018 AMC 12B Problem 5
22231 2018 AMC 12B Problem 4
22230 2018 AMC 12B Problem 3
22229 2018 AMC 12B Problem 2
22228 2018 AMC 12B Problem 1
22227 2018 AMC 12A Problem 25
22226 2018 AMC 12A Problem 24
22225 2018 AMC 12A Problem 23
22224 2018 AMC 12A Problem 22
22223 2018 AMC 12A Problem 21
22222 2018 AMC 12A Problem 20
22221 2018 AMC 12A Problem 19
22220 2018 AMC 12A Problem 18
22219 2018 AMC 12A Problem 17
22218 2018 AMC 12A Problem 16
22217 2018 AMC 12A Problem 15
22216 2018 AMC 12A Problem 14
22215 2018 AMC 12A Problem 13
22214 2018 AMC 12A Problem 12
22213 2018 AMC 12A Problem 11
22212 2018 AMC 12A Problem 10
22211 2018 AMC 12A Problem 9
22210 2018 AMC 12A Problem 8
22209 2018 AMC 12A Problem 7
22208 2018 AMC 12A Problem 6
22207 2018 AMC 12A Problem 5
22206 2018 AMC 12A Problem 4
22205 2018 AMC 12A Problem 3
22204 2018 AMC 12A Problem 2
22203 2018 AMC 12A Problem 1
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