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)
16351	DMOJ COCI '14 Contest 2 #4 Bob
16350	DMOJ COCI '14 Contest 2 #3 Studentsko
16349	DMOJ COCI '14 Contest 2 #2 Utrka
16348	DMOJ COCI '14 Contest 2 #1 Mobitel
16347	DMOJ COCI '14 Contest 1 #6 Kamp
16346	DMOJ COCI '14 Contest 1 #5 Zabava
16345	DMOJ COCI '14 Contest 1 #4 Mafija
16344	DMOJ COCI '14 Contest 1 #3 Piramida
16343	DMOJ COCI '14 Contest 1 #2 Klopka
16342	DMOJ COCI '14 Contest 1 #1 Prosjek
16341	DMOJ COCI '13 Contest 6 #6 Graškrižja
16340	DMOJ COCI '13 Contest 6 #5 Hash
16339	DMOJ COCI '13 Contest 6 #4 Kružnice
16338	DMOJ COCI '13 Contest 6 #3 Kockice
16337	DMOJ COCI '13 Contest 6 #2 Font
16336	DMOJ COCI '13 Contest 6 #1 Vjeko
16335	DMOJ COCI '13 Contest 5 #6 Ladice
16334	DMOJ COCI '13 Contest 5 #5 Trokuti
16333	DMOJ COCI '13 Contest 5 #4 Domine
16332	DMOJ COCI '13 Contest 5 #3 Eksplozjia
16331	DMOJ COCI '13 Contest 5 #2 Obilazak
16330	DMOJ COCI '13 Contest 5 #1 Lozinka
16329	DMOJ COCI '13 Contest 4 #6 Utrka
16328	DMOJ COCI '13 Contest 4 #5 Čokolade
16327	DMOJ COCI '13 Contest 4 #4 Guma
16326	DMOJ COCI '13 Contest 4 #3 Sumo
16325	DMOJ COCI '13 Contest 4 #2 Gmo
16324	DMOJ COCI '13 Contest 4 #1 Nasljedstvo
16323	DMOJ COCI '13 Contest 3 #6 Odašiljači
16322	DMOJ COCI '13 Contest 3 #5 Parovi
16321	DMOJ COCI '13 Contest 3 #4 Kolinje
16320	DMOJ COCI '13 Contest 3 #3 Rečenice
16319	DMOJ COCI '13 Contest 3 #2 Okvir
16318	DMOJ COCI '13 Contest 3 #1 Riječi
16317	DMOJ COCI '13 Contest 2 #6 Linije
16316	DMOJ COCI '13 Contest 2 #5 Paleta
16315	DMOJ COCI '13 Contest 2 #4 Putnik
16314	DMOJ COCI '13 Contest 2 #3 Slom
16313	DMOJ COCI '13 Contest 2 #2 Misa
16312	DMOJ COCI '13 Contest 2 #1 Volim
16311	DMOJ COCI '13 Contest 1 #6 Slastičar
16310	DMOJ COCI '13 Contest 1 #5 Organizator
16309	DMOJ COCI '13 Contest 1 #4 Lopov
16308	DMOJ COCI '13 Contest 1 #3 Ratar
16307	DMOJ COCI '13 Contest 1 #2 Kušač
16306	DMOJ COCI '13 Contest 1 #1 Trener
16305	DMOJ COCI '12 Contest 6 #6 Bakterije
16304	DMOJ COCI '12 Contest 6 #5 Jedan
16303	DMOJ COCI '12 Contest 6 #4 Burek
16302	DMOJ COCI '12 Contest 6 #3 Dobri

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

16351

DMOJ COCI '14 Contest 2 #4 Bob

16350

DMOJ COCI '14 Contest 2 #3 Studentsko

16349

DMOJ COCI '14 Contest 2 #2 Utrka

16348

DMOJ COCI '14 Contest 2 #1 Mobitel

16347

DMOJ COCI '14 Contest 1 #6 Kamp

16346