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)
19371 DMOJ Valentine's Day '19 J3 - Love!
19370 DMOJ Valentine's Day '19 J2 - Pink!
19369 DMOJ Valentine's Day '19 J1 - Rainbow Rating
19368 DMOJ Valentine's Day '18 S5 - Carol's Calculating Continuity
19367 DMOJ Valentine's Day '18 S4 - Coastal California Cities
19366 DMOJ Valentine's Day '18 S3 - Carol's Cactesian Conquest
19365 DMOJ Valentine's Day '18 J5 & S2 - Ctudor's Cute Orchids
19364 DMOJ Valentine's Day '18 J4 & S1 - Carol's Cute Cactus
19363 DMOJ Valentine's Day '18 J3 - Are they cute?
19362 DMOJ Valentine's Day '18 J2 - Stop the Scammer
19361 DMOJ Valentine's Day '18 J1 - The Cactus Number
19360 DMOJ Valentine's Day '15 P3 - The Great Escape
19359 DMOJ Valentine's Day '15 P2 - Simon and Marcy
19358 DMOJ Valentine's Day '15 P1 - #1 BABE
19357 DMOJ UTS Open '21 P7 - April Fools
19356 DMOJ UTS Open '21 P6 - Terra Mater
19355 DMOJ UTS Open '21 P5 - State Taxes
19354 DMOJ UTS Open '21 P4 - Lucky Graph
19353 DMOJ UTS Open '21 P3 - Latin Class
19352 DMOJ UTS Open '21 P2 - Prime Array
19351 DMOJ UTS Open '21 P1 - COVID Party
19350 DMOJ UTS Open '18 P7 - Gossip Network
19349 DMOJ UTS Open '18 P6 - Subset Sum
19348 DMOJ UTS Open '18 P5 - Room 666
19347 DMOJ UTS Open '18 P4 - Ianine's Lil Lab
19346 DMOJ UTS Open '18 P3 - Restaurants
19345 DMOJ UTS Open '18 P2 - ABCs
19344 DMOJ UTS Open '18 P1 - Love Triangle
19343 DMOJ UTS Open '15 #6 - Tetrahedra
19342 DMOJ UTS Open '15 #5 - Distribution Channel
19341 DMOJ UTS Open '15 #4 - Subway
19340 DMOJ UTS Open '15 #3 - Pogo
19339 DMOJ UTS Open '15 #2 - Secret Code
19338 DMOJ UTS Open '15 #1 - Caesar Salad
19337 DMOJ Intertwined Strings
19336 DMOJ UCRPC F21 I - Sphere Mongers
19335 DMOJ UCRPC F21 H - Fetch Quest
19334 DMOJ UCRPC F21 G - Snack Attack
19333 DMOJ UCRPC F21 F - Trip Navigator
19332 DMOJ UCRPC F21 E - Feeding Friendsy
19331 DMOJ UCRPC F21 D - Stake Your Claim
19330 DMOJ UCRPC F21 C - Maths of Glory
19329 DMOJ UCRPC F21 B - Lost in the Shuffle
19328 DMOJ UCRPC F21 A - Senseless Census
19327 DMOJ UCC Coding Competition '21 P5 - Woodcutting Game
19326 DMOJ UCC Coding Competition '21 P4 - Trampoline Jump
19325 DMOJ UCC Coding Competition '21 P3 - Long Pizza
19324 DMOJ UCC Coding Competition '21 P2 - Emerald Exchange
19323 DMOJ UCC Coding Competition '21 P1 - Counterfeit Detection
19322 DMOJ UCC Coding Competition '20 P5 - Public Transport
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