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)
17651	DMOJ Assembly Elves
17650	DMOJ Power Distribution
17649	DMOJ EGOI '23 P8 - Guessing Game
17648	DMOJ EGOI '23 P7 - Sopsug
17647	DMOJ EGOI '23 P6 - Candy
17646	DMOJ EGOI '23 P5 - Carnival General
17645	DMOJ EGOI '23 P4 - Bikes vs Cars
17644	DMOJ EGOI '23 P3 - Find the Box
17643	DMOJ EGOI '23 P2 - Padel Prize Pursuit
17642	DMOJ EGOI '23 P1 - Inflation
17641	DMOJ EGOI '22 P6 - Superpiece
17640	DMOJ EGOI '22 P5 - Data Centers
17639	DMOJ EGOI '22 P3 - Social Engineering
17638	DMOJ EGOI '22 P2 - Lego Wall
17637	DMOJ EGOI '22 P1 - SubsetMex
17636	DMOJ EGOI '21 P2 - Luna Likes Love
17635	DMOJ EGOI '21 P1 - Zeros
17634	DMOJ DMOJ Capture The Flag '20 C1 - All the bases!
17633	DMOJ DMOJ Capture The Flag '20 F4 - Wire on Shark
17632	DMOJ DMOJ Capture The Flag '20 F3 - Four Taps
17631	DMOJ DMOJ Capture The Flag '20 F2 - Queries & Strings
17630	DMOJ DMOJ Capture The Flag '20 F1 - RGB
17629	DMOJ DMOJ Capture The Flag '20 G4 - All the folders in the world
17628	DMOJ DMOJ Capture The Flag '20 G3 - Git Gud
17627	DMOJ DMOJ Capture The Flag '20 G2 - Where's the flag?
17626	DMOJ DMOJ Capture The Flag '20 B3 - Classic Buffer Overflow
17625	DMOJ DMOJ Capture The Flag '20 B2 - Strings
17624	DMOJ DMOJ Capture The Flag '20 B1 - Super Secure Pseudorandom Number Generator
17623	DMOJ DMOJ Capture The Flag '20 R4 - Python Cycles
17622	DMOJ DMOJ Capture The Flag '20 R3 - Harder Assembly
17621	DMOJ DMOJ Capture The Flag '20 R2 - EZ Assembly
17620	DMOJ DMOJ Capture The Flag '20 R1 - Classic Java
17619	DMOJ DMOJ Capture The Flag '20 C4 - Larger Encryption
17618	DMOJ DMOJ Capture The Flag '20 C3 - Small AES
17617	DMOJ DMOJ Capture The Flag '20 C2 - Small RSA
17616	DMOJ DMOJ Capture The Flag '20 G1 - Sanity Check
17615	DMOJ WCIPEG 2018 ECOO Qualifier P4 - IOI tour
17614	DMOJ WCIPEG 2018 ECOO Qualifier P3 - Shattering Shadows 2
17613	DMOJ WCIPEG 2018 ECOO Qualifier P2 - EECOOOO
17612	DMOJ WCIPEG 2018 ECOO Qualifier P1 - Bincent's Billows
17611	DMOJ ECOO '21 P6 - Problematic Pathways
17610	DMOJ ECOO '21 P5 - Waldwick's Walk
17609	DMOJ ECOO '21 P4 - Chris' Candy
17608	DMOJ ECOO '21 P3 - Quintessential Questions
17607	DMOJ ECOO '21 P2 - DNA Derren
17606	DMOJ ECOO '21 P1 - Many Messages
17605	DMOJ ECOO '20 P4 - Ring
17604	DMOJ ECOO '20 P3 - Captcha Fun
17603	DMOJ ECOO '20 P2 - Online Shopping
17602	DMOJ ECOO '20 P1 - Music with Mimi

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

17651

DMOJ Assembly Elves

17650

DMOJ Power Distribution

17649

DMOJ EGOI '23 P8 - Guessing Game

17648

DMOJ EGOI '23 P7 - Sopsug

17647

DMOJ EGOI '23 P6 - Candy

17646