Starlight: List of Problems

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Over 20,000 problems available. AMC 8/10/12 and AIME problems from 2010-2023; USAJMO/USAMO problems from 2002-2023 available. USACO problems from 2014 to 2023 (all divisions). Codeforces, AtCoder, DMOJ problems are added daily around 04:00 AM UTC, which may cause disruptions.

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ID Problem Name (click to add insights/hints, view summary of insights/hints and similar problems)
4571 Codeforces 1061E: Politics
4570 Codeforces 1061D: TV Shows
4569 Codeforces 1061C: Multiplicity
4568 Codeforces 1061B: Views Matter
4567 Codeforces 1061A: Coins
4566 Codeforces 1060H: Sophisticated Device
4565 Codeforces 1060G: Balls and Pockets
4564 Codeforces 1060F: Shrinking Tree
4563 Codeforces 1060E: Sergey and Subway
4562 Codeforces 1060D: Social Circles
4561 Codeforces 1060C: Maximum Subrectangle
4560 Codeforces 1060B: Maximum Sum of Digits
4559 Codeforces 1060A: Phone Numbers
4558 Codeforces 1059E: Split the Tree
4557 Codeforces 1059D: Nature Reserve
4556 Codeforces 1059C: Sequence Transformation
4555 Codeforces 1059B: Forgery
4554 Codeforces 1059A: Cashier
4553 Codeforces 1057C: Tanya and Colored Candies
4552 Codeforces 1057B: DDoS
4551 Codeforces 1057A: Bmail Computer Network
4550 Codeforces 1056H: Detect Robots
4549 Codeforces 1056G: Take Metro
4548 Codeforces 1056F: Write The Contest
4547 Codeforces 1056E: Check Transcription
4546 Codeforces 1056D: Decorate Apple Tree
4545 Codeforces 1056C: Pick Heroes
4544 Codeforces 1056B: Divide Candies
4543 Codeforces 1056A: Determine Line
4542 Codeforces 1055G: Jellyfish Nightmare
4541 Codeforces 1055F: Tree and XOR
4540 Codeforces 1055E: Segments on the Line
4539 Codeforces 1055D: Refactoring
4538 Codeforces 1055C: Lucky Days
4537 Codeforces 1055B: Alice and Hairdresser
4536 Codeforces 1055A: Metro
4535 Codeforces 1054H: Epic Convolution
4534 Codeforces 1054G: New Road Network
4533 Codeforces 1054F: Electric Scheme
4532 Codeforces 1054E: Chips Puzzle
4531 Codeforces 1054D: Changing Array
4530 Codeforces 1054C: Candies Distribution
4529 Codeforces 1054B: Appending Mex
4528 Codeforces 1054A: Elevator or Stairs?
4527 Codeforces 1053E: Euler tour
4526 Codeforces 1051G: Distinctification
4525 Codeforces 1051F: The Shortest Statement
4524 Codeforces 1051E: Vasya and Big Integers
4523 Codeforces 1051D: Bicolorings
4522 Codeforces 1051C: Vasya and Multisets
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