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Problem Category Points AC % ▾ Users
CBOJ Exec Selection Contest 2 Problem 2 - Patryk and Primes Club 5 27.1% 9
Close Matchups Club 7p 26.5% 9
Count Divisors Club 5 25.3% 22
CBOJ Exec Selection Contest Problem 5 - Interesting Words CBOJ 15p 24.7% 5
CBOJ Exec Selection Contest Problem 3 - Lucky Modulo 7 CBOJ 15p 24.7% 7
CBOJ Exec Selection Contest 2 Problem 4 - George's Graph Club 10 24.2% 3
CBOJ Welcome Contest Problem 3 - Octomesters CBOJ 7p 24.0% 17
CBOJ Winter Contest Problem 3 - Stacking Spacers CBOJ 12p 23.9% 16
Snow Removal CBOJ 5 23.7% 8
Palindrome 2 - Longest Palindrome (Easy) CBOJ 7 23.7% 11
A Sum Problem Club 5 23.6% 32
Perfectly Even Numbers Club 5 22.6% 15
CCC '21 S4 - Daily Commute CCC 12p 21.9% 6
CBOJ Winter Contest Problem 2 - Suitcase Packing CBOJ 7p 21.7% 16
CBOJ 2022 Welcome Contest Problem 4 - Highest Weight Path Club 7p 20.6% 8
Sum of Occurrences Club 3 20.4% 24
A Binary Search Problem Club 7 19.8% 9
Supply Drop CBOJ 20p 19.2% 1
Numbers On A Whiteboard CBOJ 10 19.0% 3
CBOJ Winter Contest Problem 2 - Suitcase Packing (Hard) CBOJ 10 17.6% 9
Palindrome 3 - Longest Palindrome (Hard) CBOJ 15 17.5% 5
Graph Theory: Weighted Graph Club 12 17.3% 10
Zeyu and Fireworks CBOJ 12p 17.1% 3
CBOJ Winter Contest Problem 4 - Paint.NET CBOJ 12p 16.5% 14
CBOJ Exec Selection Contest Problem 6 - Cult CBOJ 17p 16.4% 4
CCC '20 S3 - Searching for Strings CCC 15p 16.0% 12
Santa's Route CBOJ 10 15.6% 3
CBOJ 2022 Spring Contest Problem 2 - Allen's Asparagus CBOJ 5 15.2% 8
Perfectly Even Numbers (Extreme) Club 15 14.9% 9
WAC - Squirrel Election WAC 7p 14.7% 8
Point of Intersection Club 10p 14.4% 8
CBOJ Fall Contest Problem 3 - Maximum Social Distance CBOJ 12p 14.4% 11
A Fenwick Tree Problem Club 15p 14.2% 8
CCC '20 S2 - Escape Room CCC 12p 14.1% 14
CBOJ 2023 Welcome Contest Problem 4 - A Dream Problem CBOJ 10 13.0% 5
CBOJ Exec Selection Contest 2 Problem 5 - Obligatory Data Structure Problem Club 12 12.5% 3
Iceberg Hopping Club 10p 12.4% 10
CBOJ Exec Selection Contest Problem 4 - Bob and Books CBOJ 15p 12.1% 6
CBOJ 2022 Spring Contest Problem 4 - Allen's Automata CBOJ 15p 12.1% 5
WAC - The Almighty Acorn WAC 35p 11.4% 2
CBOJ Exec Selection Contest 2 Problem 3 - Anita's Array Club 7 11.3% 5
Hello, World! CBOJ 1 9.4% 64
Subarray Sums CBOJ 7p 9.4% 8
Count Divisors (Extreme) CBOJ 15 8.2% 7
CCC '19 S3 - Arithmetic Square CCC 15p 7.4% 4
CBOJ Exec Selection Contest Problem 2 - Pretty Sequence CBOJ 15p 6.3% 6
CBOJ Welcome Contest Problem 4 - Remainder Table CBOJ 15p 6.0% 6
A Dynamic Programming Problem Club 20 3.8% 2
A Prime Problem Club 12 1.4% 2