Problems

Problem Category Points AC % Users
A Dynamic Programming Problem Club 20 2.7% 1
Allen's Graph Club 7 31.8% 4
A Math Problem (Easy) Club 7 32.1% 11
A Plus B CBOJ 5p 56.4% 32
A Prime Problem Club 7 37.6% 14
A Sum Problem Club 5 37.2% 24
Iceberg Hopping Club 10p 26.0% 8
Close Matchups Club 7p 27.9% 8
Point of Intersection Club 10p 14.9% 7
A Binary Search Problem Club 7 24.4% 4
CBOJ Welcome Contest Problem 1 - Symmetric Encryption CBOJ 5p 28.1% 18
CBOJ Welcome Contest Problem 2 - Eating Candies CBOJ 5p 36.4% 20
CBOJ Welcome Contest Problem 3 - Octomesters CBOJ 7p 28.3% 16
CBOJ Welcome Contest Problem 4 - Remainder Table CBOJ 15p 5.6% 5
CBOJ Fall Contest Problem 1 - Rule of Four CBOJ 7p 31.3% 14
CBOJ Fall Contest Problem 2 - Raking Leaves CBOJ 7p 30.5% 15
CBOJ Fall Contest Problem 3 - Maximum Social Distance CBOJ 12p 16.9% 8
CBOJ Fall Contest Problem 4 - Taking an L CBOJ 12p 31.3% 6
CBOJ Winter Contest Problem 1 - Cyclic Isomers CBOJ 7p 52.9% 15
CBOJ Winter Contest Problem 2 - Suitcase Packing CBOJ 7p 21.2% 13
CBOJ Winter Contest Problem 2 - Suitcase Packing (Hard) CBOJ 10 21.2% 7
CBOJ Winter Contest Problem 3 - Stacking Spacers CBOJ 12p 28.4% 13
CBOJ Winter Contest Problem 4 - Paint.NET CBOJ 12p 18.1% 11
CBOJ 2022 Spring Contest Problem 1 - KMP CBOJ 3 31.8% 11
CBOJ 2022 Spring Contest Problem 2 - Allen's Asparagus CBOJ 5 15.3% 6
CBOJ 2022 Spring Contest Problem 3 - Martin's Monochromatic Marbles CBOJ 7p 33.3% 4
CBOJ 2022 Spring Contest Problem 4 - Allen's Automata CBOJ 15p 12.2% 3
CBOJ 2022 Spring Contest Problem 5 - Draw me a Mountain Range CBOJ 17p 40.0% 2
CBOJ Exec Selection Contest Problem 1 - Networking CBOJ 12p 50.0% 9
CBOJ Exec Selection Contest Problem 2 - Pretty Sequence CBOJ 15p 6.4% 4
CBOJ Exec Selection Contest Problem 3 - Lucky Modulo 7 CBOJ 15p 22.6% 5
CBOJ Exec Selection Contest Problem 4 - Bob and Books CBOJ 15p 10.3% 4
CBOJ Exec Selection Contest Problem 5 - Interesting Words CBOJ 15p 24.2% 4
CBOJ Exec Selection Contest Problem 6 - Cult CBOJ 17p 18.8% 3
CCC '03 S5 - Trucking Troubles CCC 15p 66.7% 2
CCC '15 J5 - π-day CCC 15p 45.5% 8
CCC '19 J5 - Rule of Three CCC 15p 38.9% 5
CCC '19 S3 - Arithmetic Square CCC 15p 7.8% 4
CCC '20 S2 - Escape Room CCC 12p 13.0% 9
CCC '20 S3 - Searching for Strings CCC 15p 17.9% 8
CCC '20 S3 Easy - Searching for Strings CCC 12p 70.0% 8
CCC '21 S1 - Crazy Fencing CCC 5 38.6% 13
CCC '21 S2 - Modern Art CCC 7p 31.9% 8
CCC '21 S3 - Lunch Concert CCC 10p 71.4% 5
CCC '21 S4 - Daily Commute CCC 12p 66.7% 2
CCC '21 S5 - Math Homework CCC 12p 47.4% 6
Subarray Sums CBOJ 7p 9.5% 7
ECOO 2015 R1 P4 - Neanderthal Numbers ECOO 12 61.1% 4
ECOO 2016 R2 P1 - Palindrome Panic ECOO 12 75.0% 2
ECOO 2018 R2 P3 - Factorial ECOO 12 33.3% 3