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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)
6750 Codeforces 1490E: Accidental Victory
6749 Codeforces 1490D: Permutation Transformation
6748 Codeforces 1490C: Sum of Cubes
6747 Codeforces 1490B: Balanced Remainders
6746 Codeforces 1490A: Dense Array
6745 Codeforces 1488J: Flower Shop
6744 Codeforces 1488I: Demonic Invasion
6743 Codeforces 1488H: Build From Suffixes
6742 Codeforces 1488G: Painting Numbers
6741 Codeforces 1488F: Dogecoin
6740 Codeforces 1488E: Palindromic Doubles
6739 Codeforces 1488D: Problemsolving Marathon
6738 Codeforces 1488C: Two Policemen
6737 Codeforces 1488B: RBS Deletion
6736 Codeforces 1488A: From Zero To Y
6735 Codeforces 1487G: String Counting
6734 Codeforces 1487F: Ones
6733 Codeforces 1487E: Cheap Dinner
6732 Codeforces 1487D: Pythagorean Triples
6731 Codeforces 1487C: Minimum Ties
6730 Codeforces 1487B: Cat Cycle
6729 Codeforces 1487A: Arena
6728 Codeforces 1486F: Pairs of Paths
6727 Codeforces 1486E: Paired Payment
6726 Codeforces 1486D: Max Median
6725 Codeforces 1486C2: Guessing the Greatest (hard version)
6724 Codeforces 1486C1: Guessing the Greatest (easy version)
6723 Codeforces 1486B: Eastern Exhibition
6722 Codeforces 1486A: Shifting Stacks
6721 Codeforces 1485F: Copy or Prefix Sum
6720 Codeforces 1485E: Move and Swap
6719 Codeforces 1485D: Multiples and Power Differences
6718 Codeforces 1485C: Floor and Mod
6717 Codeforces 1485B: Replace and Keep Sorted
6716 Codeforces 1485A: Add and Divide
6715 Codeforces 1482H: Exam
6714 Codeforces 1482G: Vabank
6713 Codeforces 1482F: Useful Edges
6712 Codeforces 1482E: Skyline Photo
6711 Codeforces 1482D: Playlist
6710 Codeforces 1482C: Basic Diplomacy
6709 Codeforces 1482B: Restore Modulo
6708 Codeforces 1482A: Prison Break
6707 Codeforces 1481F: AB Tree
6706 Codeforces 1481E: Sorting Books
6705 Codeforces 1481D: AB Graph
6704 Codeforces 1481C: Fence Painting
6703 Codeforces 1481B: New Colony
6702 Codeforces 1481A: Space Navigation
6701 Codeforces 1480B: The Great Hero
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