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Problem Category Points AC % Users ▾
Hello, World! CBOJ 1 9.4% 64
A Plus B CBOJ 5p 55.0% 48
A Sum Problem Club 5 23.6% 32
Palindrome 1 - Check Palindrome CBOJ 3 39.3% 31
CBOJ Welcome Contest Problem 2 - Eating Candies CBOJ 5p 41.9% 27
Fibonacci 1 Club 5 50.9% 27
CCC '21 S1 - Crazy Fencing CCC 5 45.8% 25
Sum of Occurrences Club 3 20.4% 24
CBOJ Welcome Contest Problem 1 - Symmetric Encryption CBOJ 5p 30.0% 24
Count Divisors Club 5 25.3% 22
WAC - Snow Day Predictor WAC 3 53.2% 21
CBOJ Fall Contest Problem 2 - Raking Leaves CBOJ 7p 27.5% 20
Graph Theory: Intro Club 5 46.3% 20
Graph Theory: Connectivity Club 10 34.5% 20
Graph Theory: Shortest Path Club 10 36.9% 19
CBOJ Winter Contest Problem 1 - Cyclic Isomers CBOJ 7p 47.7% 19
A CCC Preparation Problem CBOJ 1 32.9% 19
A Math Problem (Easy) Club 7 30.2% 18
Fibonacci 2 Club 7 28.5% 18
CCC '15 J5 - π-day CCC 15p 44.2% 18
CBOJ 2022 Spring Contest Problem 1 - KMP CBOJ 3 35.7% 18
CBOJ 2022 Welcome Contest Problem 1 - Kernel Bye Computer Science Lovers Club 3 46.7% 18
CBOJ Welcome Contest Problem 3 - Octomesters CBOJ 7p 24.0% 17
Public Service Announcement Club 7p 38.1% 17
CBOJ Fall Contest Problem 1 - Rule of Four CBOJ 7p 31.1% 17
CBOJ Winter Contest Problem 3 - Stacking Spacers CBOJ 12p 23.9% 16
CBOJ Winter Contest Problem 2 - Suitcase Packing CBOJ 7p 21.7% 16
Perfectly Even Numbers Club 5 22.6% 15
CBOJ Winter Contest Problem 4 - Paint.NET CBOJ 12p 16.5% 14
CCC '20 S2 - Escape Room CCC 12p 14.1% 14
Days To Break CBOJ 3 77.8% 14
CCC '21 S2 - Modern Art CCC 7p 31.7% 13
Zeyu and Addition CBOJ 5 42.9% 13
CCC '20 S3 Easy - Searching for Strings CCC 12p 64.0% 12
CCC '20 S3 - Searching for Strings CCC 15p 16.0% 12
Placing Kings Club 10p 61.9% 12
CBOJ Exec Selection Contest Problem 1 - Networking CBOJ 12p 27.1% 12
Zeyu and Prefixes CBOJ 5 28.4% 12
CBOJ Exec Selection Contest 2 Problem 1 - Vowels Club 3 37.2% 12
Palindrome 2 - Longest Palindrome (Easy) CBOJ 7 23.7% 11
CBOJ Fall Contest Problem 3 - Maximum Social Distance CBOJ 12p 14.4% 11
Allen's Graph Club 7 30.8% 11
CBOJ 2022 Welcome Contest Problem 3 - Suspicious Cells Club 5 68.2% 11
CBOJ 2023 Welcome Contest Problem 1 - Soccer League CBOJ 3 52.4% 11
Menorah CBOJ 5 57.9% 11
Iceberg Hopping Club 10p 12.4% 10
Graph Theory: Weighted Graph Club 12 17.3% 10
CBOJ 2022 Welcome Contest Problem 2 - First Day of School Club 5 28.9% 10
CBOJ 2023 Welcome Contest Problem 2 - Algebra Homework CBOJ 3 71.4% 10
CBOJ 2023 Welcome Contest Problem 3 - Finding "Amis" CBOJ 5 44.0% 10