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)
16501	DMOJ COCI '17 Contest 6 #3 Mate
16500	DMOJ COCI '17 Contest 6 #2 Alkemija
16499	DMOJ COCI '17 Contest 6 #1 Davor
16498	DMOJ COCI '17 Contest 5 #6 Planinarenje
16497	DMOJ COCI '17 Contest 5 #5 Pictionary
16496	DMOJ COCI '17 Contest 5 #4 Karte
16495	DMOJ COCI '17 Contest 5 #3 Birokracija
16494	DMOJ COCI '17 Contest 5 #2 Spirale
16493	DMOJ COCI '17 Contest 5 #1 Olivander
16492	DMOJ COCI '17 Contest 4 #6 Ceste
16491	DMOJ COCI '17 Contest 4 #5 Krov
16490	DMOJ COCI '17 Contest 4 #4 Vođe
16489	DMOJ COCI '17 Contest 4 #3 Automobil
16488	DMOJ COCI '17 Contest 4 #2 Izbori
16487	DMOJ COCI '17 Contest 4 #1 Rasvjeta
16486	DMOJ COCI '17 Contest 3 #6 Sažetak
16485	DMOJ COCI '17 Contest 3 #5 Dojave
16484	DMOJ COCI '17 Contest 3 #4 Portal
16483	DMOJ COCI '17 Contest 3 #3 Retro
16482	DMOJ COCI '17 Contest 3 #2 Programiranje
16481	DMOJ COCI '17 Contest 3 #1 Aron
16480	DMOJ COCI '17 Contest 2 #6 Garaža
16479	DMOJ COCI '17 Contest 2 #5 Usmjeri
16478	DMOJ COCI '17 Contest 2 #4 San
16477	DMOJ COCI '17 Contest 2 #3 Doktor
16476	DMOJ COCI '17 Contest 2 #2 ZigZag
16475	DMOJ COCI '17 Contest 2 #1 Košnja
16474	DMOJ COCI '17 Contest 1 #6 Plahte
16473	DMOJ COCI '17 Contest 1 #5 Deda
16472	DMOJ COCI '17 Contest 1 #4 Hokej
16471	DMOJ COCI '17 Contest 1 #3 Lozinke Hard
16470	DMOJ COCI '17 Contest 1 #3 Lozinke
16469	DMOJ COCI '17 Contest 1 #2 Tetris
16468	DMOJ COCI '17 Contest 1 #1 Cezar
16467	DMOJ COCI '16 Contest 7 #6 Klavir
16466	DMOJ COCI '16 Contest 7 #5 Paralelogrami
16465	DMOJ COCI '16 Contest 7 #4 Poklon
16464	DMOJ COCI '16 Contest 7 #3 Igra
16463	DMOJ COCI '16 Contest 7 #2 Uzastopni
16462	DMOJ COCI '16 Contest 7 #1 Baza
16461	DMOJ COCI '16 Contest 6 #6 Gauss
16460	DMOJ COCI '16 Contest 6 #5 Sirni
16459	DMOJ COCI '16 Contest 6 #4 Savršen
16458	DMOJ COCI '16 Contest 6 #3 Turnir
16457	DMOJ COCI '16 Contest 6 #2 Telefoni
16456	DMOJ COCI '16 Contest 6 #1 H-indeks
16455	DMOJ COCI '16 Contest 5 #6 Strelice
16454	DMOJ COCI '16 Contest 5 #5 Poklon
16453	DMOJ COCI '16 Contest 5 #4 Ronald
16452	DMOJ COCI '16 Contest 5 #3 Unija

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

16501

DMOJ COCI '17 Contest 6 #3 Mate

16500

DMOJ COCI '17 Contest 6 #2 Alkemija

16499

DMOJ COCI '17 Contest 6 #1 Davor

16498

DMOJ COCI '17 Contest 5 #6 Planinarenje

16497

DMOJ COCI '17 Contest 5 #5 Pictionary

16496