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)
16001 DMOJ CEOI '19 Practice P3 - Tower Defense
16000 DMOJ CEOI '19 Practice P2 - Separator
15999 DMOJ CEOI '19 Practice P1 - Count Squares
15998 DMOJ CEOI '19 P5 - Magic Tree
15997 DMOJ CEOI '19 P4 - Amusement Park
15996 DMOJ CEOI '19 P3 - Cubeword
15995 DMOJ CEOI '19 P2 - Dynamic Diameter
15994 DMOJ CEOI '19 P1 - Building Skyscrapers
15993 DMOJ CEOI '18 P5 - Toys
15992 DMOJ CEOI '18 P4 - Fibonacci Representations
15991 DMOJ CEOI '18 P3 - Lottery
15990 DMOJ CEOI '18 P2 - Global Warming
15989 DMOJ CEOI '18 P1 - Cloud Computing
15988 DMOJ CEOI '17 P6 - Chase
15987 DMOJ CEOI '17 P5 - Palindromic Partitions
15986 DMOJ CEOI '17 P4 - Building Bridges
15985 DMOJ CEOI '17 P3 - Mousetrap
15984 DMOJ CEOI '17 P2 - Sure Bet
15983 DMOJ CEOI '17 P1 - One-Way Streets
15982 DMOJ CEOI '16 P5 - Popeala
15981 DMOJ CEOI '16 P4 - Match
15980 DMOJ CEOI '16 P2 - Kangaroo
15979 DMOJ CEOI '14 P2 - Fangorn
15978 DMOJ CEOI '09 P2 - Harbingers
15977 DMOJ CCOQR '16 - Data Structure
15976 DMOJ CCOQR '16 - Through A Maze Darkly
15975 DMOJ CCOQR '16 - Stupendous Bowties
15974 DMOJ CCO Preparation Test 7 P2 - XOR Path
15973 DMOJ CCO Preparation Test 7 P1 - Game of Stone
15972 DMOJ CCO Preparation Test 6 P3 - HopScotch
15971 DMOJ CCO Preparation Test 6 P2 - An Easy Problem
15970 DMOJ CCO Preparation Test 6 P1 - Bus Routes
15969 DMOJ CCO Preparation Test 5 P4 - Toys
15968 DMOJ CCO Preparation Test 5 P3 - Minimum Cycle
15967 DMOJ CCO Preparation Test 5 P2 - Corporative Network
15966 DMOJ CCO Preparation Test 5 P1 - City Game
15965 DMOJ CCO Preparation Test 4 P3 - Dynamic MST
15964 DMOJ CCO Preparation Test 3 P3 - Arrow
15963 DMOJ CCO Preparation Test 3 P2 - Packing Up
15962 DMOJ CCO Preparation Test 3 P1 - Primitive Pythagorean Pairs
15961 DMOJ CCO Preparation Test 2 P3 - Subsets
15960 DMOJ CCO Preparation Test 2 P2 - Forest Area
15959 DMOJ CCO Preparation Test 2 P1 - Concatenation
15958 DMOJ CCO Preparation Test 1 P3 - K-th Rank Student
15957 DMOJ CCO Preparation Test 1 P2 - Escape Maze
15956 DMOJ CCO Preparation Test 1 P1 - Double Cross
15955 DMOJ CCO '99 P6 - Fast Food
15954 DMOJ CCO '99 P5 - Sum Of Products
15953 DMOJ CCO '99 P4 - Maple Roundup
15952 DMOJ CCO '99 P3 - Manelzuma's Revenge
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