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Problem Category Points AC % ▴ Users
CBOJ Fall Contest Problem 2 - Raking Leaves CBOJ 7p 27.5% 20
Zeyu and Prefixes CBOJ 5 28.4% 12
Fibonacci 2 Club 7 28.5% 18
Making a Necklace Club 10p 28.6% 7
CBOJ 2022 Welcome Contest Problem 2 - First Day of School Club 5 28.9% 10
CBOJ Fall Contest Problem 4 - Taking an L CBOJ 12p 29.3% 7
CBOJ 2022 Spring Contest Problem 3 - Martin's Monochromatic Marbles CBOJ 7p 29.8% 6
CBOJ Welcome Contest Problem 1 - Symmetric Encryption CBOJ 5p 30.0% 24
A Math Problem (Easy) Club 7 30.2% 18
The Perfect Gift CBOJ 7p 30.6% 5
Allen's Graph Club 7 30.8% 11
CBOJ Fall Contest Problem 1 - Rule of Four CBOJ 7p 31.1% 17
CCC '21 S2 - Modern Art CCC 7p 31.7% 13
A CCC Preparation Problem CBOJ 1 32.9% 19
Graph Theory: Connectivity Club 10 34.5% 20
CCC '03 S5 - Trucking Troubles CCC 15p 35.0% 7
CBOJ 2022 Spring Contest Problem 1 - KMP CBOJ 3 35.7% 18
ECOO 2018 R2 P3 - Factorial ECOO 12 36.8% 5
Graph Theory: Shortest Path Club 10 36.9% 19
A Difference Array Problem Club 7p 37.0% 9
CBOJ Exec Selection Contest 2 Problem 1 - Vowels Club 3 37.2% 12
Public Service Announcement Club 7p 38.1% 17
Palindrome 1 - Check Palindrome CBOJ 3 39.3% 31
CCC '19 J5 - Rule of Three CCC 15p 40.0% 8
CCC '21 S5 - Math Homework CCC 12p 41.7% 7
CBOJ Welcome Contest Problem 2 - Eating Candies CBOJ 5p 41.9% 27
Mountain, Valley And Repeat CBOJ 17 42.3% 2
Zeyu and Addition CBOJ 5 42.9% 13
CBOJ 2022 Spring Contest Problem 5 - Draw me a Mountain Range CBOJ 17p 43.8% 3
CBOJ 2023 Welcome Contest Problem 3 - Finding "Amis" CBOJ 5 44.0% 10
CCC '15 J5 - π-day CCC 15p 44.2% 18
CCC '21 S1 - Crazy Fencing CCC 5 45.8% 25
Graph Theory: Intro Club 5 46.3% 20
CBOJ 2022 Welcome Contest Problem 1 - Kernel Bye Computer Science Lovers Club 3 46.7% 18
CBOJ Winter Contest Problem 1 - Cyclic Isomers CBOJ 7p 47.7% 19
Fibonacci 1 Club 5 50.9% 27
CBOJ 2023 Welcome Contest Problem 1 - Soccer League CBOJ 3 52.4% 11
CCC '21 S3 - Lunch Concert CCC 10p 52.6% 9
WAC - Snow Day Predictor WAC 3 53.2% 21
A Plus B CBOJ 5p 55.0% 48
Menorah CBOJ 5 57.9% 11
Placing Kings Club 10p 61.9% 12
CCC '20 S3 Easy - Searching for Strings CCC 12p 64.0% 12
ECOO 2015 R1 P4 - Neanderthal Numbers ECOO 12 68.2% 7
CBOJ 2022 Welcome Contest Problem 3 - Suspicious Cells Club 5 68.2% 11
WAC - Triangle: The Root of All Evil WAC 15p 71.4% 3
CBOJ 2023 Welcome Contest Problem 2 - Algebra Homework CBOJ 3 71.4% 10
ECOO 2016 R2 P1 - Palindrome Panic ECOO 12 73.3% 4
Days To Break CBOJ 3 77.8% 14