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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
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  • 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)
6200 Codeforces 1379D: New Passenger Trams
6199 Codeforces 1379C: Choosing flowers
6198 Codeforces 1379B: Dubious Cyrpto
6197 Codeforces 1379A: Acacius and String
6196 Codeforces 1375I: Cubic Lattice
6195 Codeforces 1375H: Set Merging
6194 Codeforces 1375G: Tree Modification
6193 Codeforces 1375F: Integer Game
6192 Codeforces 1375E: Inversion SwapSort
6191 Codeforces 1375D: Replace by MEX
6190 Codeforces 1375C: Element Extermination
6189 Codeforces 1375B: Neighbor Grid
6188 Codeforces 1375A: Sign Flipping
6187 Codeforces 1374F: Cyclic Shifts Sorting
6186 Codeforces 1374E2: Reading Books (hard version)
6185 Codeforces 1374E1: Reading Books (easy version)
6184 Codeforces 1374D: Zero Remainder Array
6183 Codeforces 1374C: Move Brackets
6182 Codeforces 1374B: Multiply by 2, divide by 6
6181 Codeforces 1374A: Required Remainder
6180 Codeforces 1373G: Pawns
6179 Codeforces 1373F: Network Coverage
6178 Codeforces 1373E: Sum of Digits
6177 Codeforces 1373D: Maximum Sum on Even Positions
6176 Codeforces 1373C: Pluses and Minuses
6175 Codeforces 1373B: 01 Game
6174 Codeforces 1373A: Donut Shops
6173 Codeforces 1372F: Omkar and Modes
6172 Codeforces 1372E: Omkar and Last Floor
6171 Codeforces 1372D: Omkar and Circle
6170 Codeforces 1372C: Omkar and Baseball
6169 Codeforces 1372B: Omkar and Last Class of Math
6168 Codeforces 1372A: Omkar and Completion
6167 Codeforces 1371F: Raging Thunder
6166 Codeforces 1371E2: Asterism (Hard Version)
6165 Codeforces 1371E1: Asterism (Easy Version)
6164 Codeforces 1371D: Grid-00100
6163 Codeforces 1371C: A Cookie for You
6162 Codeforces 1371B: Magical Calendar
6161 Codeforces 1371A: Magical Sticks
6160 Codeforces 1370F2: The Hidden Pair (Hard Version)
6159 Codeforces 1370F1: The Hidden Pair (Easy Version)
6158 Codeforces 1370E: Binary Subsequence Rotation
6157 Codeforces 1370D: Odd-Even Subsequence
6156 Codeforces 1370C: Number Game
6155 Codeforces 1370B: GCD Compression
6154 Codeforces 1370A: Maximum GCD
6153 Codeforces 1369F: BareLee
6152 Codeforces 1369E: DeadLee
6151 Codeforces 1369D: TediousLee
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