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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)
5750 Codeforces 1294E: Obtain a Permutation
5749 Codeforces 1294D: MEX maximizing
5748 Codeforces 1294C: Product of Three Numbers
5747 Codeforces 1294B: Collecting Packages
5746 Codeforces 1294A: Collecting Coins
5745 Codeforces 1293B: JOE is on TV!
5744 Codeforces 1293A: ConneR and the A.R.C. Markland-N
5743 Codeforces 1292F: Nora's Toy Boxes
5742 Codeforces 1292E: Rin and The Unknown Flower
5741 Codeforces 1292D: Chaotic V.
5740 Codeforces 1292C: Xenon's Attack on the Gangs
5739 Codeforces 1292B: Aroma's Search
5738 Codeforces 1292A: NEKO's Maze Game
5737 Codeforces 1291F: Coffee Varieties (easy version)
5736 Codeforces 1291B: Array Sharpening
5735 Codeforces 1291A: Even But Not Even
5734 Codeforces 1290F: Making Shapes
5733 Codeforces 1290E: Cartesian Tree
5732 Codeforces 1290D: Coffee Varieties (hard version)
5731 Codeforces 1290C: Prefix Enlightenment
5730 Codeforces 1290B: Irreducible Anagrams
5729 Codeforces 1290A: Mind Control
5728 Codeforces 1288F: Red-Blue Graph
5727 Codeforces 1288E: Messenger Simulator
5726 Codeforces 1288D: Minimax Problem
5725 Codeforces 1288C: Two Arrays
5724 Codeforces 1288B: Yet Another Meme Problem
5723 Codeforces 1288A: Deadline
5722 Codeforces 1287B: Hyperset
5721 Codeforces 1287A: Angry Students
5720 Codeforces 1286F: Harry The Potter
5719 Codeforces 1286E: Fedya the Potter Strikes Back
5718 Codeforces 1286D: LCC
5717 Codeforces 1286C2: Madhouse (Hard version)
5716 Codeforces 1286C1: Madhouse (Easy version)
5715 Codeforces 1286B: Numbers on Tree
5714 Codeforces 1286A: Garland
5713 Codeforces 1285F: Classical?
5712 Codeforces 1285E: Delete a Segment
5711 Codeforces 1285D: Dr. Evil Underscores
5710 Codeforces 1285C: Fadi and LCM
5709 Codeforces 1285B: Just Eat It!
5708 Codeforces 1285A: Mezo Playing Zoma
5707 Codeforces 1284G: Seollal
5706 Codeforces 1284F: New Year and Social Network
5705 Codeforces 1284E: New Year and Castle Construction
5704 Codeforces 1284D: New Year and Conference
5703 Codeforces 1284C: New Year and Permutation
5702 Codeforces 1284B: New Year and Ascent Sequence
5701 Codeforces 1284A: New Year and Naming
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