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Problem Category Points AC % ▾ Users
Close Matchups Club 7p 27.5% 8
Sum of Occurrences Club 3 27.5% 13
Graph Theory: Intro Club 5 26.6% 10
CBOJ Exec Selection Contest 2 Problem 2 - Patryk and Primes Club 5 26.2% 7
CB Open 2024 Problem 3 - Another Number Theory Problem CBOJ 7 26.0% 4
CBOJ Exec Selection Contest Problem 1 - Networking CBOJ 12p 25.9% 7
CBOJ Winter Contest Problem 3 - Stacking Spacers CBOJ 12p 25.9% 7
Count Divisors Club 5 25.8% 12
A Math Problem (Easy) Club 7 25.2% 36
CB Open 2024 Problem 4 - A Perfect Contest CBOJ 10 25.0% 4
CCC '21 S2 - Modern Art CCC 7p 24.2% 9
CCC '21 S4 - Daily Commute CCC 12p 24.0% 5
CBOJ Fall Contest Problem 4 - Taking an L CBOJ 12p 23.4% 4
CBOJ Fall Contest Problem 2 - Raking Leaves CBOJ 7p 23.2% 12
A Sum Problem Club 5 22.7% 19
CBOJ 2022 Spring Contest Problem 3 - Martin's Monochromatic Marbles CBOJ 7p 22.2% 4
Snow Removal CBOJ 5 22.0% 8
Perfectly Even Numbers Club 5 21.8% 11
CBOJ Winter Contest Problem 2 - Suitcase Packing (Hard) CBOJ 10 21.6% 7
CBOJ Exec Selection Contest 2 Problem 3 - Anita's Array Club 7 20.7% 5
CBOJ Exec Selection Contest Problem 5 - Interesting Words CBOJ 15p 19.8% 3
CBOJ Winter Contest Problem 2 - Suitcase Packing CBOJ 7p 19.3% 8
Numbers On A Whiteboard CBOJ 10 19.2% 4
CBOJ Welcome Contest Problem 1 - Symmetric Encryption CBOJ 5p 18.8% 11
CBOJ Exec Selection Contest Problem 6 - Cult CBOJ 17p 18.2% 2
Zeyu and Fireworks CBOJ 12p 18.2% 3
CBOJ Welcome Contest Problem 3 - Octomesters CBOJ 7p 18.1% 36
A Fenwick Tree Problem Club 15p 17.9% 6
Supply Drop CBOJ 20p 17.4% 1
Santa's Route CBOJ 10 17.2% 3
A Binary Search Problem Club 7 17.2% 8
Zeyu and Prefixes CBOJ 5 16.5% 10
Graph Theory: Weighted Graph Club 12 16.5% 7
CBOJ 2023 Welcome Contest Problem 4 - A Dream Problem CBOJ 10 16.4% 4
CBOJ 2022 Welcome Contest Problem 4 - Highest Weight Path Club 7p 16.4% 6
CBOJ Exec Selection Contest Problem 3 - Lucky Modulo 7 CBOJ 15p 16.3% 5
WAC - Squirrel Election WAC 7p 15.8% 4
CCC '20 S3 - Searching for Strings CCC 15p 15.5% 8
CBOJ Winter Contest Problem 4 - Paint.NET CBOJ 12p 14.8% 6
Iceberg Hopping Club 10p 14.7% 6
CBOJ 2022 Spring Contest Problem 2 - Allen's Asparagus CBOJ 5 14.3% 5
Point of Intersection Club 10p 13.4% 6
CBOJ Fall Challenge '24 P4 - Factor Graph CBOJ 7 12.5% 3
Perfectly Even Numbers (Extreme) Club 15 12.1% 6
CCC '20 S2 - Escape Room CCC 12p 12.1% 9
CBOJ Fall Contest Problem 3 - Maximum Social Distance CBOJ 12p 11.6% 6
CBOJ Exec Selection Contest Problem 4 - Bob and Books CBOJ 15p 11.0% 4
CBOJ 2022 Spring Contest Problem 4 - Allen's Automata CBOJ 15p 10.1% 4
CBOJ Exec Selection Contest 2 Problem 5 - Obligatory Data Structure Problem Club 12 10.0% 3
Subarray Sums CBOJ 7p 9.4% 4