Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % ▾ Users
DMPG '18 S6 - Mimi and Carrots DMOPC 17p 24.0% 22
DMPG '18 B4 - Shimnanigans DMOPC 5p 27.7% 88
DMPG '18 S1 - Mimi and Types DMOPC 5 26.9% 97
DMPG '18 B3 - Shimpossible DMOPC 7p 17.2% 63
DMPG '18 G5 - Triangles DMOPC 15p 20.5% 29
DMPG '18 G6 - Class Chitchat DMOPC 20p 27.6% 85
DMPG '18 S2 - Mimi and K-uteness DMOPC 7p 26.4% 181
ECOO '18 R1 P2 - Rue's Rings ECOO 5p 21.8% 393
DMPG '18 G4 - Variation DMOPC 15p 31.5% 26
Mock CCO '18 Contest 3 Problem 1 - Roger Meets For DMPG Mock CCO 15p 9.6% 12
Mock CCO '18 Contest 3 Problem 2 - Roger Delegates Work to Jessica Mock CCO 20p 28.9% 23
Mock CCO '18 Contest 3 Problem 3 - Roger Just Plays Some More Chess Mock CCO 20p 12.3% 33
Mock CCO '18 Contest 3 Problem 4 - Roger Solves A Classic Rage Tree Problem Mock CCO 10p 50.3% 317
Mock CCO '18 Contest 3 Problem 5 - Roger Outsources DMOJ Work Mock CCO 15p 11.2% 8
Mock CCO '18 Contest 3 Problem 6 - Roger Asks For More Marks Mock CCO 30p 15.5% 8
DMPG '18 S3 - Black and White IV DMOPC 7p 12.7% 45
TLE '17 Contest 8 P4 - Gamma Waves TLE 20p 8.7% 19
TLE '17 Contest 8 P5 - Battle Plan 2 TLE 20p 32.6% 40
TLE '17 Contest 8 P6 - Willson and Nesting Season TLE 25p 13.3% 7
Polynomial Time Boolean Satisfiability Uncategorized 15p 37.7% 48
ECOO '18 R2 P4 - Three Squares ECOO 15p 35.1% 10
Mock CCO '18 Contest 4 Problem 1 - Mining for Minerals Mock CCO 15p 14.2% 40
Mock CCO '18 Contest 4 Problem 2 - Sunken Colonies Mock CCO 15p 43.5% 38
Mock CCO '18 Contest 4 Problem 3 - Counterattack Mock CCO 15p 23.6% 285
Mock CCO '18 Contest 4 Problem 4 - Time Travel Mock CCO 15p 27.8% 56
Mock CCO '18 Contest 4 Problem 5 - Spawn More Overlords Mock CCO 20p 24.8% 35
Mock CCO '18 Contest 4 Problem 6 - Splitting Drones Mock CCO 15p 34.6% 37
Dynamic Tree Test Data Structure Tests 45 30.4% 34
ECOO '18 R3 P1 - Balanced ECOO 12p 28.1% 12
ECOO '18 R3 P2 - Vegenère ECOO 12p 8.5% 6
ECOO '18 R3 P3 - Currency Exchange ECOO 10p 8.1% 13
ECOO '18 R3 P4 - Circular Cities ECOO 15p 13.1% 6
ECOO '18 R2 P3 - Factorial ECOO 12p 16.6% 48
ECOO '18 R2 P2 - Homework ECOO 10p 21.6% 95
ECOO '18 R2 P1 - Artificial Photosynthesystem ECOO 7p 39.5% 37
CCO '18 P1 - Geese vs. Hawks CCO 10p 37.6% 576
CCO '18 P2 - Wrong Answer CCO 12p 15.6% 119
CCO '18 P3 - Fun Palace CCO 30p 17.8% 78
CCO '18 P4 - Gradient Descent CCO 15p 14.5% 256
CCO '18 P5 - Boring Lectures CCO 20p 19.2% 127
CCO '18 P6 - Flop Sorting CCO 30p 17.4% 59
APIO '14 P2 - Split the Sequence APIO 25p 11.5% 142
CCO '18 P5 - Boring Lectures (Online Version) CCO 30p 7.3% 50
Overflow Uncategorized 30p 2.4% 7
APIO '11 P1 - Table Coloring APIO 25p 22.6% 98
CCC '01 S2 - Spirals (Exact Version) CCC 7 8.3% 105
Fibonacci Sequence (Harder) Uncategorized 17 19.5% 304
Longest Up-Down Subsequence POI 12p 29.6% 126
NOI '15 P2 - Software Package Manager China NOI 20p 28.0% 44
Double Doors Regional P4 - Tudor Teaches Jason How To Be Productive Uncategorized 10 13.1% 40