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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)
6350 Codeforces 1409C: Yet Another Array Restoration
6349 Codeforces 1409B: Minimum Product
6348 Codeforces 1409A: Yet Another Two Integers Problem
6347 Codeforces 1408I: Bitwise Magic
6346 Codeforces 1408H: Rainbow Triples
6345 Codeforces 1408G: Clusterization Counting
6344 Codeforces 1408F: Two Different
6343 Codeforces 1408E: Avoid Rainbow Cycles
6342 Codeforces 1408D: Searchlights
6341 Codeforces 1408C: Discrete Acceleration
6340 Codeforces 1408B: Arrays Sum
6339 Codeforces 1408A: Circle Coloring
6338 Codeforces 1407E: Egor in the Republic of Dagestan
6337 Codeforces 1407D: Discrete Centrifugal Jumps
6336 Codeforces 1407C: Chocolate Bunny
6335 Codeforces 1407B: Big Vova
6334 Codeforces 1407A: Ahahahahahahahaha
6333 Codeforces 1406E: Deleting Numbers
6332 Codeforces 1406D: Three Sequences
6331 Codeforces 1406C: Link Cut Centroids
6330 Codeforces 1406B: Maximum Product
6329 Codeforces 1406A: Subset Mex
6328 Codeforces 1405B: Array Cancellation
6327 Codeforces 1405A: Permutation Forgery
6326 Codeforces 1404E: Bricks
6325 Codeforces 1404D: Game of Pairs
6324 Codeforces 1404C: Fixed Point Removal
6323 Codeforces 1404B: Tree Tag
6322 Codeforces 1404A: Balanced Bitstring
6321 Codeforces 1403C: Chess Rush
6320 Codeforces 1403B: Spring cleaning
6319 Codeforces 1403A: The Potion of Great Power
6318 Codeforces 1402C: Star Trek
6317 Codeforces 1402B: Roads
6316 Codeforces 1402A: Fancy Fence
6315 Codeforces 1401F: Reverse and Swap
6314 Codeforces 1401E: Divide Square
6313 Codeforces 1401D: Maximum Distributed Tree
6312 Codeforces 1401C: Mere Array
6311 Codeforces 1401B: Ternary Sequence
6310 Codeforces 1401A: Distance and Axis
6309 Codeforces 1400G: Mercenaries
6308 Codeforces 1400F: x-prime Substrings
6307 Codeforces 1400E: Clear the Multiset
6306 Codeforces 1400D: Zigzags
6305 Codeforces 1400C: Binary String Reconstruction
6304 Codeforces 1400B: RPG Protagonist
6303 Codeforces 1400A: String Similarity
6302 Codeforces 1399F: Yet Another Segments Subset
6301 Codeforces 1399E2: Weights Division (hard version)
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