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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)
19855 2003 AMC 8 Problem 3
19854 2003 AMC 8 Problem 2
19853 2003 AMC 8 Problem 1
19852 2002 AMC 8 Problem 25
19851 2002 AMC 8 Problem 24
19850 2002 AMC 8 Problem 23
19849 2002 AMC 8 Problem 22
19848 2002 AMC 8 Problem 21
19847 2002 AMC 8 Problem 20
19846 2002 AMC 8 Problem 19
19845 2002 AMC 8 Problem 18
19844 2002 AMC 8 Problem 17
19843 2002 AMC 8 Problem 16
19842 2002 AMC 8 Problem 15
19841 2002 AMC 8 Problem 14
19840 2002 AMC 8 Problem 13
19839 2002 AMC 8 Problem 12
19838 2002 AMC 8 Problem 11
19837 2002 AMC 8 Problem 10
19836 2002 AMC 8 Problem 9
19835 2002 AMC 8 Problem 8
19834 2002 AMC 8 Problem 7
19833 2002 AMC 8 Problem 6
19832 2002 AMC 8 Problem 5
19831 2002 AMC 8 Problem 4
19830 2002 AMC 8 Problem 3
19829 2002 AMC 8 Problem 2
19828 2002 AMC 8 Problem 1
19827 DMOJ New Year's '19 P8 - Best Hat in Town II
19826 DMOJ New Year's '19 P7 - The Order of the Fox
19825 DMOJ New Year's '19 P6 - Buffer Zone
19824 DMOJ New Year's '19 P5 - Best Hat in Town
19823 DMOJ New Year's '19 P4 - A Button Challenge
19822 DMOJ New Year's '19 P3 - Santa's Journey
19821 DMOJ New Year's '19 P2 - Ball Sculpture
19820 DMOJ New Year's '19 P1 - Snowball Fight
19819 DMOJ New Year's '18 P8 - Snowy Streets
19818 DMOJ New Year's '18 P7 - Tree of Life
19817 DMOJ New Year's '18 P6 - Old Christmas Lights II
19816 DMOJ New Year's '18 P5 - Hanoi Heuristics
19815 DMOJ New Year's '18 P4 - The Polar Express
19814 DMOJ New Year's '18 P3 - World Domination Fun
19813 DMOJ New Year's '18 P2 - Mimi and Christmas Cake
19812 DMOJ New Year's '18 P1 - Happy New Year!
19811 DMOJ New Year's '17 P8 - Boxen in Boxen
19810 DMOJ New Year's '17 P7 - Santa's Deliveries
19809 DMOJ New Year's '17 P6 - Christmas Cards
19808 DMOJ New Year's '17 P5 - The Christmas Swap
19807 DMOJ New Year's '17 P4 - Christmas Cozonac
19806 DMOJ New Year's '17 P3 - Fibonacci Presents
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