Starlight: List of Problems

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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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)
16951	DMOJ DMOPC '17 Contest 5 P3 - Mimi and Primes
16950	DMOJ DMOPC '17 Contest 5 P2 - Mimi and Binary
16949	DMOJ DMOPC '17 Contest 5 P1 - IOI 101
16948	DMOJ DMOPC '17 Contest 5 P0 - Mimi and Pizza
16947	DMOJ DMOPC '17 Contest 4 P6 - Best Girl
16946	DMOJ DMOPC '17 Contest 4 P5 - Revised IOI
16945	DMOJ DMOPC '17 Contest 4 P4 - Cops and Robbers
16944	DMOJ DMOPC '17 Contest 4 P3 - Third Place
16943	DMOJ DMOPC '17 Contest 4 P2 - A Heavy Light Decomposition Problem
16942	DMOJ DMOPC '17 Contest 4 P1 - Ribbon Colouring Fun
16941	DMOJ DMOPC '17 Contest 4 P0 - Catch
16940	DMOJ DMOPC '17 Contest 3 P6 - Mimi and Scarf
16939	DMOJ DMOPC '17 Contest 3 P5 - Picnic Planning
16938	DMOJ DMOPC '17 Contest 3 P4 - Solitaire Logic
16937	DMOJ DMOPC '17 Contest 3 P3 - N-Kat
16936	DMOJ DMOPC '17 Contest 3 P2 - Towers of Hanoi
16935	DMOJ DMOPC '17 Contest 3 P1 - An Early Christmas Present
16934	DMOJ DMOPC '17 Contest 3 P0 - 2-Satisfiability
16933	DMOJ DMOPC '17 Contest 2 P6 - Lazy Days
16932	DMOJ DMOPC '17 Contest 2 P5 - Game
16931	DMOJ DMOPC '17 Contest 2 P4 - Mimi and Dictionary
16930	DMOJ DMOPC '17 Contest 2 P3 - Bad Bunnies
16929	DMOJ DMOPC '17 Contest 2 P2 - Balance
16928	DMOJ DMOPC '17 Contest 2 P1 - 0-1 Knapsack
16927	DMOJ DMOPC '17 Contest 2 P0 - Secrets
16926	DMOJ DMOPC '17 Contest 1 P6 - Land of the Carrot Trees
16925	DMOJ DMOPC '17 Contest 1 P5 - Intimidating Arrays
16924	DMOJ DMOPC '17 Contest 1 P4 - Quests
16923	DMOJ DMOPC '17 Contest 1 P3 - Hitchhiking Fun
16922	DMOJ DMOPC '17 Contest 1 P2 - Sharing Crayons
16921	DMOJ DMOPC '17 Contest 1 P1 - Fujō Neko
16920	DMOJ DMOPC '16 Contest 4 P6 - Molly and Flying Drones
16919	DMOJ DMOPC '16 Contest 4 P5 - Migrant Mascot
16918	DMOJ DMOPC '16 Contest 4 P4 - Molly and Manga Shopping
16917	DMOJ DMOPC '16 Contest 4 P3 - Carnival Phantasm
16916	DMOJ DMOPC '16 Contest 4 P2 - Systests
16915	DMOJ DMOPC '16 Contest 4 P1 - Fast Exponents
16914	DMOJ DMOPC '16 Contest 3 P6 - Long Lost Love
16913	DMOJ DMOPC '16 Contest 3 P5 - Shoe Shopping II
16912	DMOJ DMOPC '16 Contest 3 P4 - Serpent's Search
16911	DMOJ DMOPC '16 Contest 3 P3 - Phantom Fight
16910	DMOJ DMOPC '16 Contest 3 P2 - Starstruck Squeeze
16909	DMOJ DMOPC '16 Contest 3 P1 - Leading Basic Shots
16908	DMOJ DMOPC '16 Contest 3 P0 - Negative Feedback
16907	DMOJ DMOPC '16 Contest 2 P6 - Console Simulator 2017
16906	DMOJ DMOPC '16 Contest 2 P5 - Tormented in Tartarus
16905	DMOJ DMOPC '16 Contest 2 P4 - Zeros
16904	DMOJ DMOPC '16 Contest 2 P3 - Queries
16903	DMOJ DMOPC '16 Contest 2 P2 - Ebola Outbreak
16902	DMOJ DMOPC '16 Contest 2 P1 - Seed Strategy

Problem Name (click to add insights/hints, view summary of insights/hints and similar problems)

16951

DMOJ DMOPC '17 Contest 5 P3 - Mimi and Primes

16950

DMOJ DMOPC '17 Contest 5 P2 - Mimi and Binary

16949

DMOJ DMOPC '17 Contest 5 P1 - IOI 101

16948

DMOJ DMOPC '17 Contest 5 P0 - Mimi and Pizza

16947

DMOJ DMOPC '17 Contest 4 P6 - Best Girl

16946