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Problem ▴ Category Points AC % Users
CCC '21 S5 - Math Homework CCC 12p 41.7% 7
CCC '21 S2 - Modern Art CCC 7p 31.7% 13
CCC '20 S3 Easy - Searching for Strings CCC 12p 64.0% 12
CCC '20 S3 - Searching for Strings CCC 15p 16.0% 12
ECOO 2016 R2 P1 - Palindrome Panic ECOO 12 73.3% 4
ECOO 2015 R1 P4 - Neanderthal Numbers ECOO 12 68.2% 7
ECOO 2018 R2 P3 - Factorial ECOO 12 36.8% 5
Making a Necklace Club 10p 28.6% 7
Placing Kings Club 10p 61.9% 12
A Fenwick Tree Problem Club 15p 14.2% 8
CBOJ Exec Selection Contest Problem 2 - Pretty Sequence CBOJ 15p 6.3% 6
CBOJ Exec Selection Contest Problem 4 - Bob and Books CBOJ 15p 12.1% 6
CBOJ Exec Selection Contest Problem 1 - Networking CBOJ 12p 27.1% 12
CBOJ Exec Selection Contest Problem 3 - Lucky Modulo 7 CBOJ 15p 24.7% 7
CBOJ Exec Selection Contest Problem 5 - Interesting Words CBOJ 15p 24.7% 5
CBOJ Exec Selection Contest Problem 6 - Cult CBOJ 17p 16.4% 4
Zeyu and Addition CBOJ 5 42.9% 13
Zeyu and Prefixes CBOJ 5 28.4% 12
A Binary Search Problem Club 7 19.8% 9
Allen's Graph Club 7 30.8% 11
Supply Drop CBOJ 20p 19.2% 1
A Dynamic Programming Problem Club 20 3.8% 2
Zeyu and Fireworks CBOJ 12p 17.1% 3
CBOJ 2022 Spring Contest Problem 2 - Allen's Asparagus CBOJ 5 15.2% 8
CBOJ 2022 Spring Contest Problem 5 - Draw me a Mountain Range CBOJ 17p 43.8% 3
CBOJ 2022 Spring Contest Problem 1 - KMP CBOJ 3 35.7% 18
CBOJ 2022 Spring Contest Problem 4 - Allen's Automata CBOJ 15p 12.1% 5
CBOJ 2022 Spring Contest Problem 3 - Martin's Monochromatic Marbles CBOJ 7p 29.8% 6
CBOJ 2022 Welcome Contest Problem 3 - Suspicious Cells Club 5 68.2% 11
A CCC Preparation Problem CBOJ 1 32.9% 19
CBOJ 2022 Welcome Contest Problem 2 - First Day of School Club 5 28.9% 10
CBOJ 2022 Welcome Contest Problem 1 - Kernel Bye Computer Science Lovers Club 3 46.7% 18
CBOJ 2022 Welcome Contest Problem 4 - Highest Weight Path Club 7p 20.6% 8
Mountain, Valley And Repeat CBOJ 17 42.3% 2
CBOJ 2023 Welcome Contest Problem 1 - Soccer League CBOJ 3 52.4% 11
The Perfect Gift CBOJ 7p 30.6% 5
CBOJ 2023 Welcome Contest Problem 4 - A Dream Problem CBOJ 10 13.0% 5
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
Numbers On A Whiteboard CBOJ 10 19.0% 3
Menorah CBOJ 5 57.9% 11
Days To Break CBOJ 3 77.8% 14
Snow Removal CBOJ 5 23.7% 8
Santa's Route CBOJ 10 15.6% 3
CBOJ Exec Selection Contest 2 Problem 4 - George's Graph Club 10 24.2% 3
CBOJ Exec Selection Contest 2 Problem 3 - Anita's Array Club 7 11.3% 5
CBOJ Exec Selection Contest 2 Problem 5 - Obligatory Data Structure Problem Club 12 12.5% 3
CBOJ Exec Selection Contest 2 Problem 2 - Patryk and Primes Club 5 27.1% 9
CBOJ Exec Selection Contest 2 Problem 1 - Vowels Club 3 37.2% 12