Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % Users
ACM U of T Tryouts C3 F - A Pleasant Stroll ICPC 15 18.2% 34
ACM U of T Tryouts C3 G - Office Mates ICPC 15 21.3% 35
A Coin Problem Uncategorized 12p 19.5% 324
A Combining Problem Uncategorized 20 14.7% 19
ACSL '09 Practice P1 - Kansas Uncategorized 7 12.7% 71
ACSL '09 Practice P2 - Cars Uncategorized 10p 18.9% 38
ACSL '09 Practice P3 - Zeroes Uncategorized 10 22.1% 143
ACSL '09 Practice P4 - Rank Uncategorized 7 48.9% 1246
ACSL '09 Practice P5 - Fax Uncategorized 12p 27.3% 21
ACSL '09 Practice P6 - Expression Uncategorized 10p 12.0% 33
ACSL '09 Practice P7 - Cube Uncategorized 15 16.2% 28
ACSL '09 Contest 1 Senior - Bridge Uncategorized 10p 24.5% 17
ACSL '09 Contest 3 Senior - Pinochle Uncategorized 10p 33.9% 4
A Digit Problem Uncategorized 12p 17.0% 55
April Fools' Day Contest 1 P1 - Sample Case Uncategorized 0 55.3% 263
April Fools' Day Contest 1 P2 - Sample Case Uncategorized 0 24.7% 170
April Fools' Day Contest 1 P3 - Author Uncategorized 0 52.2% 230
April Fools' Day Contest 1 P4 - Choosing Choosily Uncategorized 0p 42.7% 260
April Fools' Day Contest 1 P5 - Definition Uncategorized 0 42.1% 211
April Fools' Day Contest 1 P6 - April Fools' Day (BOJ Edition) Uncategorized 0 3.2% 165
April Fools' Day Contest 1 P7 - Half-Plane Intersection Uncategorized 0 3.8% 84
April Fools' Day Contest 1 P8 - NP-Hard Uncategorized 0 5.8% 29
April Fools' Day Contest 2 P1 - Columbus' Conjecting Conundrum Uncategorized 0 56.1% 181
April Fools' Day Contest 2 P2 - Brainrot Quiz Uncategorized 0 6.9% 63
April Fools' Day Contest 2 P3 - Fast Code Only! Uncategorized 0 35.2% 145
April Fools' Day Contest 2 P4 - iryg HUIunuim m Uncategorized 0 33.1% 88
April Fools' Day Contest 2 P5 - Non-polynomial Uncategorized 0 23.1% 46
April Fools' Day Contest 2 P6 - LLM or not? Uncategorized 0 7.6% 90
April Fools' Day Contest 2 P6 - LLM or not? (Hard) Uncategorized 0 11.3% 88
April Fools' Day Contest 2 P7 - Can you? Uncategorized 0p 48.4% 154
April Fools' Day Contest 2 P7 - Can you? (Hard) Uncategorized 0 8.8% 98
A Harder Game Uncategorized 15p 8.7% 33
Arcadia Computing Contest 1 P1 - Test Anxiety Uncategorized 3 42.7% 416
Arcadia Computing Contest 1 P2 - Chemistry Uncategorized 5 31.3% 269
Arcadia Computing Contest 1 P3 - ScanTron Uncategorized 5p 29.6% 245
Arcadia Computing Contest 1 P4 - Cyclic Sorting Uncategorized 7p 22.2% 146
Arcadia Computing Contest 1 P5 - Hacking Grades Uncategorized 7 39.2% 129
Arcadia Computing Contest 2 P1 - Rejected Uncategorized 3 68.2% 304
Arcadia Computing Contest 2 P2 - Tennis Uncategorized 5 43.1% 288
Arcadia Computing Contest 2 P3 - Alternato Uncategorized 7p 18.2% 158
Arcadia Computing Contest 2 P4 - Choose Your Own Adventure! Uncategorized 7 41.4% 151
Arcadia Computing Contest 2 P5 - lp0 is on fire! Uncategorized 10p 29.8% 133
Alawn's Problem Uncategorized 7 35.2% 29
Sum of Primes 2 Uncategorized 5p 20.6% 400
A Long Problem Uncategorized 0p 55.3% 49
Alphabet Score Uncategorized 3p 49.4% 346
Adaptive Mechanized Calcium Chlorohypochlorite Uncategorized 25 25.5% 20
Amplitude Hackathon '23 Problem 1 - Company Values Uncategorized 0p 27.7% 50
Amplitude Hackathon '23 Problem 2 - Gigatron Lag Uncategorized 3p 30.1% 52
Amplitude Hackathon '23 Problem 3 - Dedupe Uncategorized 5p 48.5% 64