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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
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ID Problem Name (click to add insights/hints, view summary of insights/hints and similar problems)
5150 Codeforces 1178F1: Short Colorful Strip
5149 Codeforces 1178E: Archaeology
5148 Codeforces 1178D: Prime Graph
5147 Codeforces 1178C: Tiles
5146 Codeforces 1178B: WOW Factor
5145 Codeforces 1178A: Prime Minister
5144 Codeforces 1177B: Digits Sequence (Hard Edition)
5143 Codeforces 1177A: Digits Sequence (Easy Edition)
5142 Codeforces 1176F: Destroy it!
5141 Codeforces 1176E: Cover it!
5140 Codeforces 1176D: Recover it!
5139 Codeforces 1176C: Lose it!
5138 Codeforces 1176B: Merge it!
5137 Codeforces 1176A: Divide it!
5136 Codeforces 1175G: Yet Another Partiton Problem
5135 Codeforces 1175F: The Number of Subpermutations
5134 Codeforces 1175E: Minimal Segment Cover
5133 Codeforces 1175D: Array Splitting
5132 Codeforces 1175C: Electrification
5131 Codeforces 1175B: Catch Overflow!
5130 Codeforces 1175A: From Hero to Zero
5129 Codeforces 1174F: Ehab and the Big Finale
5128 Codeforces 1174E: Ehab and the Expected GCD Problem
5127 Codeforces 1174D: Ehab and the Expected XOR Problem
5126 Codeforces 1174C: Ehab and a Special Coloring Problem
5125 Codeforces 1174B: Ehab Is an Odd Person
5124 Codeforces 1174A: Ehab Fails to Be Thanos
5123 Codeforces 1173B: Nauuo and Chess
5122 Codeforces 1173A: Nauuo and Votes
5121 Codeforces 1172F: Nauuo and Bug
5120 Codeforces 1172E: Nauuo and ODT
5119 Codeforces 1172D: Nauuo and Portals
5118 Codeforces 1172C2: Nauuo and Pictures (hard version)
5117 Codeforces 1172C1: Nauuo and Pictures (easy version)
5116 Codeforces 1172B: Nauuo and Circle
5115 Codeforces 1172A: Nauuo and Cards
5114 Codeforces 1170I: Good Subsets
5113 Codeforces 1170H: Longest Saw
5112 Codeforces 1170G: Graph Decomposition
5111 Codeforces 1170F: Wheels
5110 Codeforces 1170E: Sliding Doors
5109 Codeforces 1170D: Decoding of Integer Sequences
5108 Codeforces 1170C: Minus and Minus Give Plus
5107 Codeforces 1170B: Bad Days
5106 Codeforces 1170A: Three Integers Again
5105 Codeforces 1169B: Pairs
5104 Codeforces 1169A: Circle Metro
5103 Codeforces 1168E: Xor Permutations
5102 Codeforces 1168D: Anagram Paths
5101 Codeforces 1168C: And Reachability
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