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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)
5550 Codeforces 1252J: Tiling Terrace
5549 Codeforces 1252I: Mission Possible
5548 Codeforces 1252H: Twin Buildings
5547 Codeforces 1252G: Performance Review
5546 Codeforces 1252F: Regular Forestation
5545 Codeforces 1252E: Songwriter
5544 Codeforces 1252D: Find String in a Grid
5543 Codeforces 1252C: Even Path
5542 Codeforces 1252B: Cleaning Robots
5541 Codeforces 1252A: Copying Homework
5540 Codeforces 1251F: Red-White Fence
5539 Codeforces 1251E2: Voting (Hard Version)
5538 Codeforces 1251E1: Voting (Easy Version)
5537 Codeforces 1251D: Salary Changing
5536 Codeforces 1251C: Minimize The Integer
5535 Codeforces 1251B: Binary Palindromes
5534 Codeforces 1251A: Broken Keyboard
5533 Codeforces 1250N: Wires
5532 Codeforces 1250M: SmartGarden
5531 Codeforces 1250L: Divide The Students
5530 Codeforces 1250K: Projectors
5529 Codeforces 1250J: The Parade
5528 Codeforces 1250I: Show Must Go On
5527 Codeforces 1250H: Happy Birthday
5526 Codeforces 1250G: Discarding Game
5525 Codeforces 1250F: Data Center
5524 Codeforces 1250E: The Coronation
5523 Codeforces 1250D: Conference Problem
5522 Codeforces 1250C: Trip to Saint Petersburg
5521 Codeforces 1250B: The Feast and the Bus
5520 Codeforces 1250A: Berstagram
5519 Codeforces 1249F: Maximum Weight Subset
5518 Codeforces 1249E: By Elevator or Stairs?
5517 Codeforces 1249D2: Too Many Segments (hard version)
5516 Codeforces 1249D1: Too Many Segments (easy version)
5515 Codeforces 1249C2: Good Numbers (hard version)
5514 Codeforces 1249C1: Good Numbers (easy version)
5513 Codeforces 1249B2: Books Exchange (hard version)
5512 Codeforces 1249B1: Books Exchange (easy version)
5511 Codeforces 1249A: Yet Another Dividing into Teams
5510 Codeforces 1248D1: The World Is Just a Programming Task (Easy Version)
5509 Codeforces 1248B: Grow The Tree
5508 Codeforces 1248A: Integer Points
5507 Codeforces 1246F: Cursor Distance
5506 Codeforces 1245F: Daniel and Spring Cleaning
5505 Codeforces 1245E: Hyakugoku and Ladders
5504 Codeforces 1245D: Shichikuji and Power Grid
5503 Codeforces 1245C: Constanze's Machine
5502 Codeforces 1245B: Restricted RPS
5501 Codeforces 1245A: Good ol' Numbers Coloring
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