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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)
3600 Codeforces 846C: Four Segments
3599 Codeforces 846B: Math Show
3598 Codeforces 846A: Curriculum Vitae
3597 Codeforces 845G: Shortest Path Problem?
3596 Codeforces 845F: Guards In The Storehouse
3595 Codeforces 845E: Fire in the City
3594 Codeforces 845D: Driving Test
3593 Codeforces 845C: Two TVs
3592 Codeforces 845B: Luba And The Ticket
3591 Codeforces 845A: Chess Tourney
3590 Codeforces 844B: Rectangles
3589 Codeforces 844A: Diversity
3588 Codeforces 843E: Maximum Flow
3587 Codeforces 843D: Dynamic Shortest Path
3586 Codeforces 843C: Upgrading Tree
3585 Codeforces 843B: Interactive LowerBound
3584 Codeforces 843A: Sorting by Subsequences
3583 Codeforces 842E: Nikita and game
3582 Codeforces 842D: Vitya and Strange Lesson
3581 Codeforces 842C: Ilya And The Tree
3580 Codeforces 842B: Gleb And Pizza
3579 Codeforces 842A: Kirill And The Game
3578 Codeforces 841B: Godsend
3577 Codeforces 841A: Generous Kefa
3576 Codeforces 840E: In a Trap
3575 Codeforces 840D: Destiny
3574 Codeforces 840C: On the Bench
3573 Codeforces 840B: Leha and another game about graph
3572 Codeforces 840A: Leha and Function
3571 Codeforces 839E: Mother of Dragons
3570 Codeforces 839D: Winter is here
3569 Codeforces 839C: Journey
3568 Codeforces 839B: Game of the Rows
3567 Codeforces 839A: Arya and Bran
3566 Codeforces 838F: Expected Earnings
3565 Codeforces 838E: Convex Countour
3564 Codeforces 838D: Airplane Arrangements
3563 Codeforces 838C: Future Failure
3562 Codeforces 838B: Diverging Directions
3561 Codeforces 838A: Binary Blocks
3560 Codeforces 837G: Functions On The Segments
3559 Codeforces 837F: Prefix Sums
3558 Codeforces 837E: Vasya's Function
3557 Codeforces 837D: Round Subset
3556 Codeforces 837C: Two Seals
3555 Codeforces 837B: Flag of Berland
3554 Codeforces 837A: Text Volume
3553 Codeforces 835F: Roads in the Kingdom
3552 Codeforces 835E: The penguin's game
3551 Codeforces 835D: Palindromic characteristics
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