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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)
5100 Codeforces 1168B: Good Triple
5099 Codeforces 1168A: Increasing by Modulo
5098 Codeforces 1167G: Low Budget Inception
5097 Codeforces 1167F: Scalar Queries
5096 Codeforces 1167E: Range Deleting
5095 Codeforces 1167D: Bicolored RBS
5094 Codeforces 1167C: News Distribution
5093 Codeforces 1167B: Lost Numbers
5092 Codeforces 1167A: Telephone Number
5091 Codeforces 1166F: Vicky's Delivery Service
5090 Codeforces 1166E: The LCMs Must be Large
5089 Codeforces 1166D: Cute Sequences
5088 Codeforces 1166C: A Tale of Two Lands
5087 Codeforces 1166B: All the Vowels Please
5086 Codeforces 1166A: Silent Classroom
5085 Codeforces 1165F2: Microtransactions (hard version)
5084 Codeforces 1165F1: Microtransactions (easy version)
5083 Codeforces 1165E: Two Arrays and Sum of Functions
5082 Codeforces 1165D: Almost All Divisors
5081 Codeforces 1165C: Good String
5080 Codeforces 1165B: Polycarp Training
5079 Codeforces 1165A: Remainder
5078 Codeforces 1163F: Indecisive Taxi Fee
5077 Codeforces 1163E: Magical Permutation
5076 Codeforces 1163D: Mysterious Code
5075 Codeforces 1163C2: Power Transmission (Hard Edition)
5074 Codeforces 1163C1: Power Transmission (Easy Edition)
5073 Codeforces 1163B2: Cat Party (Hard Edition)
5072 Codeforces 1163B1: Cat Party (Easy Edition)
5071 Codeforces 1163A: Eating Soup
5070 Codeforces 1162B: Double Matrix
5069 Codeforces 1162A: Zoning Restrictions Again
5068 Codeforces 1160A2: Collaboration
5067 Codeforces 1159B: Expansion coefficient of the array
5066 Codeforces 1159A: A pile of stones
5065 Codeforces 1158F: Density of subarrays
5064 Codeforces 1158E: Strange device
5063 Codeforces 1158D: Winding polygonal line
5062 Codeforces 1158C: Permutation recovery
5061 Codeforces 1158B: The minimal unique substring
5060 Codeforces 1158A: The Party and Sweets
5059 Codeforces 1157G: Inverse of Rows and Columns
5058 Codeforces 1157F: Maximum Balanced Circle
5057 Codeforces 1157E: Minimum Array
5056 Codeforces 1157D: N Problems During K Days
5055 Codeforces 1157C2: Increasing Subsequence (hard version)
5054 Codeforces 1157C1: Increasing Subsequence (easy version)
5053 Codeforces 1157B: Long Number
5052 Codeforces 1157A: Reachable Numbers
5051 Codeforces 1156G: Optimizer
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