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)
16451	DMOJ COCI '16 Contest 5 #2 Pareto
16450	DMOJ COCI '16 Contest 5 #1 Tuna
16449	DMOJ COCI '16 Contest 4 #6 Osmosmjerka
16448	DMOJ COCI '16 Contest 4 #5 Rima
16447	DMOJ COCI '16 Contest 4 #4 Rekonstruiraj
16446	DMOJ COCI '16 Contest 4 #3 Kas
16445	DMOJ COCI '16 Contest 4 #2 Kartomat
16444	DMOJ COCI '16 Contest 4 #1 Bridž
16443	DMOJ COCI '16 Contest 3 #6 Meksikanac
16442	DMOJ COCI '16 Contest 3 #5 Zoltan
16441	DMOJ COCI '16 Contest 3 #4 Kvalitetni
16440	DMOJ COCI '16 Contest 3 #3 Kroničan
16439	DMOJ COCI '16 Contest 3 #2 Pohlepko
16438	DMOJ COCI '16 Contest 3 #1 Imena
16437	DMOJ COCI '16 Contest 2 #6 Burza
16436	DMOJ COCI '16 Contest 2 #5 Zamjene
16435	DMOJ COCI '16 Contest 2 #4 Prosječni
16434	DMOJ COCI '16 Contest 2 #3 Nizin
16433	DMOJ COCI '16 Contest 2 #2 Tavan
16432	DMOJ COCI '16 Contest 2 #1 Go
16431	DMOJ COCI '16 Contest 1 #6 Vještica
16430	DMOJ COCI '16 Contest 1 #5 Kralj
16429	DMOJ COCI '16 Contest 1 #4 Mag
16428	DMOJ COCI '16 Contest 1 #3 Cezar
16427	DMOJ COCI '16 Contest 1 #2 Jetpack
16426	DMOJ COCI '16 Contest 1 #1 Tarifa
16425	DMOJ COCI '15 Contest 7 #6 Prokletnik
16424	DMOJ COCI '15 Contest 7 #5 Prosti
16423	DMOJ COCI '15 Contest 7 #4 Otpor
16422	DMOJ COCI '15 Contest 7 #3 Ozljeda
16421	DMOJ COCI '15 Contest 7 #2 Prozor
16420	DMOJ COCI '15 Contest 7 #1 Nizovi
16419	DMOJ COCI '15 Contest 6 #6 San
16418	DMOJ COCI '15 Contest 6 #5 Krumpirko
16417	DMOJ COCI '15 Contest 6 #4 Parovi
16416	DMOJ COCI '15 Contest 6 #3 Pianino
16415	DMOJ COCI '15 Contest 6 #2 Putovanje
16414	DMOJ COCI '15 Contest 6 #1 Bela
16413	DMOJ COCI '15 Contest 5 #6 Podnizovi
16412	DMOJ COCI '15 Contest 5 #5 OOP
16411	DMOJ COCI '15 Contest 5 #4 Poplava
16410	DMOJ COCI '15 Contest 5 #3 Perica
16409	DMOJ COCI '15 Contest 5 #2 Multigram
16408	DMOJ COCI '15 Contest 5 #1 Zamka
16407	DMOJ COCI '15 Contest 4 #6 Endor
16406	DMOJ COCI '15 Contest 4 #5 Galaksija
16405	DMOJ COCI '15 Contest 4 #4 Chewbacca
16404	DMOJ COCI '15 Contest 4 #3 Deathstar
16403	DMOJ COCI '15 Contest 4 #2 Han
16402	DMOJ COCI '15 Contest 4 #1 Yoda

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

16451

DMOJ COCI '16 Contest 5 #2 Pareto

16450

DMOJ COCI '16 Contest 5 #1 Tuna

16449

DMOJ COCI '16 Contest 4 #6 Osmosmjerka

16448

DMOJ COCI '16 Contest 4 #5 Rima

16447

DMOJ COCI '16 Contest 4 #4 Rekonstruiraj

16446