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Problem ▴ Category Points AC % Users
A Plus B CBOJ 5p 49.7% 33
WAC - The Almighty Acorn WAC 35p 3.2% 1
WAC - Snow Day Predictor WAC 3 51.4% 15
WAC - Triangle: The Root of All Evil WAC 15p 66.7% 2
WAC - Squirrel Election WAC 7p 12.0% 4
Hello, World! CBOJ 1 38.8% 44
Palindrome 1 - Check Palindrome CBOJ 3 32.2% 21
Palindrome 2 - Longest Palindrome (Easy) CBOJ 7p 29.0% 50
Palindrome 3 - Longest Palindrome (Hard) CBOJ 15 12.2% 5
Subarray Sums CBOJ 7p 8.6% 4
Count Divisors Club 5 24.8% 14
Count Divisors (Extreme) CBOJ 15 3.4% 3
CBOJ Welcome Contest Problem 2 - Eating Candies CBOJ 5p 38.5% 17
Sum of Occurrences Club 3 20.4% 19
CBOJ Welcome Contest Problem 4 - Remainder Table CBOJ 15p 5.0% 4
CBOJ Welcome Contest Problem 3 - Octomesters CBOJ 7p 17.4% 40
CBOJ Welcome Contest Problem 1 - Symmetric Encryption CBOJ 5p 19.1% 14
A Sum Problem Club 5 20.5% 24
A Prime Problem Club 12 1.2% 2
A Math Problem (Easy) Club 7 24.9% 41
Iceberg Hopping Club 10p 15.5% 7
Close Matchups Club 7p 23.9% 8
Point of Intersection Club 10p 13.1% 6
CBOJ Fall Contest Problem 4 - Taking an L CBOJ 12p 23.2% 4
Public Service Announcement Club 7p 37.2% 14
A Difference Array Problem Club 7p 33.3% 7
CBOJ Fall Contest Problem 2 - Raking Leaves CBOJ 7p 20.5% 13
CBOJ Fall Contest Problem 3 - Maximum Social Distance CBOJ 12p 12.0% 7
CBOJ Fall Contest Problem 1 - Rule of Four CBOJ 7p 35.4% 11
Graph Theory: Intro Club 5 27.1% 12
Graph Theory: Connectivity Club 10 32.9% 14
Graph Theory: Shortest Path Club 10 41.7% 11
Graph Theory: Weighted Graph Club 12 17.4% 8
Fibonacci 1 Club 5 73.6% 18
Perfectly Even Numbers Club 5 20.3% 11
Perfectly Even Numbers (Extreme) Club 15 12.1% 6
CCC '19 J5 - Rule of Three CCC 15p 40.0% 6
Fibonacci 2 Club 7 29.0% 13
CCC '15 J5 - π-day CCC 15p 31.3% 12
CCC '03 S5 - Trucking Troubles CCC 15p 60.0% 6
CBOJ Winter Contest Problem 4 - Paint.NET CBOJ 12p 12.7% 7
CBOJ Winter Contest Problem 3 - Stacking Spacers CBOJ 12p 22.2% 8
CCC '20 S2 - Escape Room CCC 12p 12.0% 9
CCC '19 S3 - Arithmetic Square CCC 15p 6.6% 4
CBOJ Winter Contest Problem 1 - Cyclic Isomers CBOJ 7p 43.1% 10
CBOJ Winter Contest Problem 2 - Suitcase Packing CBOJ 7p 20.0% 9
CBOJ Winter Contest Problem 2 - Suitcase Packing (Hard) CBOJ 10 20.4% 7
CCC '21 S1 - Crazy Fencing CCC 5 46.6% 16
CCC '21 S3 - Lunch Concert CCC 10p 38.9% 6
CCC '21 S4 - Daily Commute CCC 12p 24.0% 5