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)
18201 DMOJ JOI '16 Open P3 - Skyscraper
18200 DMOJ JOI '16 Open P2 - Selling RNA Strands
18199 DMOJ JOI '16 Final P2 - Semiexpress
18198 DMOJ JOI '16 Final P1 - Foehn Phenomena
18197 DMOJ JOI '14 Open P6 - Secret
18196 DMOJ JOI '14 Open P5 - Pinball
18195 DMOJ JOI '14 Open P3 - Space Pirate
18194 DMOJ JOI '14 Open P2 - Fortune Telling 2
18193 DMOJ JOI '14 Open P1 - Factories
18192 DMOJ JOI '13 Open P3 - Watching
18191 DMOJ JOI '13 Open P2 - Synchronization
18190 DMOJ Jack Needs Help
18189 DMOJ IOIQR P5 - Some Game
18188 DMOJ IOI '99 P6 - A Strip of Land
18187 DMOJ IOI '99 P5 - Flatten
18186 DMOJ IOI '99 P4 - Traffic Lights
18185 DMOJ IOI '99 P2 - Hidden Codes
18184 DMOJ IOI '99 P1 - Little Shop of Flowers
18183 DMOJ IOI '98 P6 - Polygon
18182 DMOJ IOI '98 P5 - Camelot
18181 DMOJ IOI '98 P4 - Picture
18180 DMOJ IOI '98 P3 - Party Lamps
18179 DMOJ IOI '98 P2 - Starry Night
18178 DMOJ IOI '98 P1 - Contact
18177 DMOJ IOI '97 P4 - Map Labelling
18176 DMOJ IOI '97 P3 - The Toxic iShongololo
18175 DMOJ IOI '97 P1 - Mars Explorer
18174 DMOJ IOI '96 P5 - Longest Prefix
18173 DMOJ IOI '96 P4 - Sorting a Three-Valued Sequence
18172 DMOJ IOI '96 P3 - Network of Schools
18171 DMOJ IOI '96 P2 - Job Processing
18170 DMOJ IOI '96 P1 - A Game
18169 DMOJ IOI '95 Practice Task 3 - Bar Codes
18168 DMOJ IOI '95 Practice Task 2 - Word Chains
18167 DMOJ IOI '95 Practice Task 1 - Fence Factory
18166 DMOJ IOI '95 P5 - Street Race
18165 DMOJ IOI '95 P4 - Letter Game
18164 DMOJ IOI '95 P2 - Shopping Offers
18163 DMOJ IOI '95 P1 - Packing Rectangles
18162 DMOJ IOI '94 P4 - The Clocks
18161 DMOJ IOI '94 P2 - The Castle
18160 DMOJ IOI '94 P1 - The Triangle
18159 DMOJ IOI '22 P6 - Thousands Islands
18158 DMOJ IOI '22 P5 - Rarest Insects
18157 DMOJ IOI '22 P4 - Digital Circuit
18156 DMOJ IOI '22 P3 - Radio Towers
18155 DMOJ IOI '22 P2 - Prisoner Challenge
18154 DMOJ IOI '22 P1 - Catfish Farm
18153 DMOJ IOI '21 P6 - Bit Shift Registers
18152 DMOJ IOI '21 P5 - Dungeons Game
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