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Problem Category Points AC % ▾ Users
CB Open 2024 Problem 1 - Studying for CS146 CBOJ 7 80.0% 5
Fibonacci 1 Club 5 73.6% 18
CBOJ Fall Challenge '24 P2 - Collatz Conjecture CBOJ 5 70.0% 6
CCC '20 S3 Easy - Searching for Strings CCC 12p 68.2% 10
WAC - Triangle: The Root of All Evil WAC 15p 66.7% 2
ECOO 2015 R1 P4 - Neanderthal Numbers ECOO 12 66.7% 6
Placing Kings Club 10p 64.0% 11
CBOJ 2022 Welcome Contest Problem 3 - Suspicious Cells Club 5 63.6% 10
CCC '03 S5 - Trucking Troubles CCC 15p 60.0% 6
Days To Break CBOJ 3 60.0% 19
Zeyu and Addition CBOJ 5 51.7% 10
WAC - Snow Day Predictor WAC 3 51.4% 15
CBOJ 2023 Welcome Contest Problem 1 - Soccer League CBOJ 3 50.0% 10
CBOJ 2023 Welcome Contest Problem 2 - Algebra Homework CBOJ 3 50.0% 9
CB Open 2024 Problem 2 - Nikola and the Teslas CBOJ 7 50.0% 5
A Plus B CBOJ 5p 49.7% 33
CCC '21 S1 - Crazy Fencing CCC 5 46.6% 16
CBOJ Fall Challenge '24 P3 - Domino Tiling CBOJ 7 46.2% 4
Menorah CBOJ 5 45.0% 9
CCC '21 S5 - Math Homework CCC 12p 44.4% 3
CBOJ 2022 Welcome Contest Problem 1 - Kernel Bye Computer Science Lovers Club 3 44.1% 14
CBOJ Winter Contest Problem 1 - Cyclic Isomers CBOJ 7p 43.1% 10
Graph Theory: Shortest Path Club 10 41.7% 11
CBOJ Exec Selection Contest 2 Problem 1 - Vowels Club 3 41.2% 10
ECOO 2018 R2 P3 - Factorial ECOO 12 40.9% 6
CCC '19 J5 - Rule of Three CCC 15p 40.0% 6
CBOJ Exec Selection Contest 2 Problem 4 - George's Graph Club 10 40.0% 3
CCC '21 S3 - Lunch Concert CCC 10p 38.9% 6
Hello, World! CBOJ 1 38.8% 44
CBOJ Welcome Contest Problem 2 - Eating Candies CBOJ 5p 38.5% 17
Public Service Announcement Club 7p 37.2% 14
CBOJ Fall Contest Problem 1 - Rule of Four CBOJ 7p 35.4% 11
ECOO 2016 R2 P1 - Palindrome Panic ECOO 12 34.4% 4
CBOJ 2022 Spring Contest Problem 1 - KMP CBOJ 3 33.8% 13
A CCC Preparation Problem CBOJ 1 33.8% 16
A Difference Array Problem Club 7p 33.3% 7
CBOJ 2023 Welcome Contest Problem 3 - Finding "Amis" CBOJ 5 33.3% 8
Graph Theory: Connectivity Club 10 32.9% 14
Palindrome 1 - Check Palindrome CBOJ 3 32.2% 21
CB Open 2024 Problem 5 - Stopping Rumours CBOJ 10 31.6% 3
Making a Necklace Club 10p 31.4% 6
CCC '15 J5 - π-day CCC 15p 31.3% 12
Allen's Graph Club 7 31.1% 9
Mountain, Valley And Repeat CBOJ 17 30.6% 2
CBOJ 2022 Spring Contest Problem 5 - Draw me a Mountain Range CBOJ 17p 30.0% 2
CB Open 2024 Problem 4 - A Perfect Contest CBOJ 10 30.0% 4
Palindrome 2 - Longest Palindrome (Easy) CBOJ 7p 29.0% 50
Fibonacci 2 Club 7 29.0% 13
CBOJ Fall Challenge '24 P1 - Building Squares CBOJ 3 28.9% 12
The Perfect Gift CBOJ 7p 28.6% 6