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)
16201	DMOJ COCI '10 Contest 2 #4 Knjige
16200	DMOJ COCI '10 Contest 2 #3 Igra
16199	DMOJ COCI '10 Contest 2 #2 Napor
16198	DMOJ COCI '10 Contest 2 #1 Puž
16197	DMOJ COCI '10 Contest 1 #6 Žabe
16196	DMOJ COCI '10 Contest 1 #5 Tabovi
16195	DMOJ COCI '10 Contest 1 #4 Ljutnja
16194	DMOJ COCI '10 Contest 1 #3 Sretan
16193	DMOJ COCI '10 Contest 1 #2 Profesor
16192	DMOJ COCI '10 Contest 1 #1 Timsko
16191	DMOJ COCI '09 Contest 7 #6 Restoran
16190	DMOJ COCI '09 Contest 7 #5 Kraljevi
16189	DMOJ COCI '09 Contest 7 #4 Svemir
16188	DMOJ COCI '09 Contest 7 #3 Bakice
16187	DMOJ COCI '09 Contest 7 #2 Cokolada
16186	DMOJ COCI '09 Contest 7 #1 Spavanac
16185	DMOJ COCI '09 Contest 6 #6 Gremlini
16184	DMOJ COCI '09 Contest 6 #5 Holmes
16183	DMOJ COCI '09 Contest 6 #4 Xor
16182	DMOJ COCI '09 Contest 6 #3 Dosadan
16181	DMOJ COCI '09 Contest 6 #2 Natjecanje
16180	DMOJ COCI '09 Contest 6 #1 Kajak
16179	DMOJ COCI '09 Contest 5 #6 Chuck
16178	DMOJ COCI '09 Contest 5 #5 Program
16177	DMOJ COCI '09 Contest 5 #4 Zuma
16176	DMOJ COCI '09 Contest 5 #3 Kletva
16175	DMOJ COCI '09 Contest 5 #2 Cudoviste
16174	DMOJ COCI '09 Contest 5 #1 Sok
16173	DMOJ COCI '09 Contest 4 #6 Palacinke
16172	DMOJ COCI '09 Contest 4 #5 Kaboom
16171	DMOJ COCI '09 Contest 4 #4 Ograda
16170	DMOJ COCI '09 Contest 4 #3 IKS
16169	DMOJ COCI '09 Contest 4 #2 Planina
16168	DMOJ COCI '09 Contest 4 #1 Autori
16167	DMOJ COCI '09 Contest 3 #6 Planete
16166	DMOJ COCI '09 Contest 3 #5 Patuljci
16165	DMOJ COCI '09 Contest 3 #4 Razgovori
16164	DMOJ COCI '09 Contest 3 #3 Sort
16163	DMOJ COCI '09 Contest 3 #2 Slatkisi
16162	DMOJ COCI '09 Contest 3 #1 Filip
16161	DMOJ COCI '09 Contest 2 #6 Pasijans
16160	DMOJ COCI '09 Contest 2 #5 Poslozi
16159	DMOJ COCI '09 Contest 2 #4 Vuk
16158	DMOJ COCI '09 Contest 2 #3 Kutevi
16157	DMOJ COCI '09 Contest 2 #2 Rimski
16156	DMOJ COCI '09 Contest 2 #1 Faktor
16155	DMOJ COCI '09 Contest 1 #6 Aladin
16154	DMOJ COCI '09 Contest 1 #5 Genijalac
16153	DMOJ COCI '09 Contest 1 #4 Mali
16152	DMOJ COCI '09 Contest 1 #3 Dobra

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

16201

DMOJ COCI '10 Contest 2 #4 Knjige

16200

DMOJ COCI '10 Contest 2 #3 Igra

16199

DMOJ COCI '10 Contest 2 #2 Napor

16198

DMOJ COCI '10 Contest 2 #1 Puž

16197

DMOJ COCI '10 Contest 1 #6 Žabe

16196