Starlight: List of Problems

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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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ID Problem Name (click to add insights/hints, view summary of insights/hints and similar problems)
15071 DMOJ Appleby Contest '20 P2 - Playful Playdoughs
15070 DMOJ Appleby Contest '20 P1 - Terrific Triangles
15069 DMOJ Appleby Contest '19 P5 - Matrix Operation
15068 DMOJ Appleby Contest '19 P4 - Rectangles
15067 DMOJ Appleby Contest '19 P3 - A Recursion Problem
15066 DMOJ Appleby Contest '19 P2 - The Love Letter
15065 DMOJ Appleby Contest '19 P1 - Darcy's Debilitating Demands
15064 DMOJ Advanced Battleships
15063 DMOJ An Animal Contest 7 P6 - S-Squirrel?
15062 DMOJ An Animal Contest 7 P5 - Squirrel Scheming
15061 DMOJ An Animal Contest 7 P4 - Squirrel Shenanigans
15060 DMOJ An Animal Contest 7 P3 - Squirrel Scramble
15059 DMOJ An Animal Contest 7 P2 - Squirrel Structures
15058 DMOJ An Animal Contest 7 P1 - Squirrnect 4
15057 DMOJ An Animal Contest 6 P6 - Generous Grizzly Gift Giving
15056 DMOJ An Animal Contest 6 P5 - Rock Painting
15055 DMOJ An Animal Contest 6 P4 - Buffet
15054 DMOJ An Animal Contest 6 P3 - OAC
15053 DMOJ An Animal Contest 6 P2 - G-Pop
15052 DMOJ An Animal Contest 6 P1 - Workout Routine
15051 DMOJ An Animal Contest 5 P6 - Larry Finally Uses His Magical Powers
15050 DMOJ An Animal Contest 5 P5 - Counting Rectangles
15049 DMOJ An Animal Contest 5 P4 - Number Game
15048 DMOJ An Animal Contest 5 P3 - Ski Resort
15047 DMOJ An Animal Contest 5 P2 (Hard Version) - Permutations & Primes
15046 DMOJ An Animal Contest 5 P2 - Permutations & Products
15045 DMOJ An Animal Contest 5 P1 - Bamboo Cookies
15044 DMOJ An Animal Contest 4 P6 - Cozy Cottages
15043 DMOJ An Animal Contest 4 P5 - Neighbourly Neighbourhoods
15042 DMOJ An Animal Contest 4 P4 - Reindeer Racing
15041 DMOJ An Animal Contest 4 P3 - Snowy Slopes
15040 DMOJ An Animal Contest 4 P2 - Lavish Lights
15039 DMOJ An Animal Contest 4 P1 - Dasher's Digits
15038 DMOJ An Animal Contest 3 P8 - Monkey Retirement
15037 DMOJ An Animal Contest 3 P7 - Monkey Lasers (Up Version)
15036 DMOJ An Animal Contest 3 P7 - Monkey Lasers
15035 DMOJ An Animal Contest 3 P6 - Monkey Station
15034 DMOJ An Animal Contest 3 P5 - Monkey Canoe
15033 DMOJ An Animal Contest 3 P4 - Monkey Mayhem
15032 DMOJ An Animal Contest 3 P3 - Monkey Market
15031 DMOJ An Animal Contest 3 P2 - Monkey Potato
15030 DMOJ An Animal Contest 3 P1 - Monkey Shopping
15029 DMOJ An Animal Contest 2 P6 - Koala Transport System
15028 DMOJ An Animal Contest 2 P5 - Koala Carnival
15027 DMOJ An Animal Contest 2 P4 - Koala Gambling
15026 DMOJ An Animal Contest 2 P3 - Koala Balloons
15025 DMOJ An Animal Contest 2 P2 - Koala Party
15024 DMOJ An Animal Contest 2 P1 - Koala Konundrum
15023 DMOJ An Animal Contest 2 P0 - Koala Matchmaking
15022 DMOJ An Animal Contest 1 P6 - Alpaca Distancing
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