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Speed up prime counting
8twoPi
Completed Languages:
6 kyu
Rotate Array
2,186cjmcgraw
Completed Languages:
4 kyu
Next smaller number with the same digits
11,170LesRamer
Completed Languages:
6 kyu
Who has the most money?
4,760MrAppa
Completed Languages:
6 kyu
Valid Phone Number
19,817xDranik
Completed Languages:
4 kyu
Most frequently used words in a text
27,941markprzepiora
Completed Languages:
6 kyu
Pascal's Triangle #2
5,758Jeroko
Completed Languages:
6 kyu
Round by 0.5 steps
4,137vshjxyz
Completed Languages:
7 kyu
Coloured Triangles
10,859Avanta
Completed Languages:
4 kyu
All Balanced Parentheses
6,217xcthulhu
Completed Languages:
6 kyu
PI approximation
5,622g964
Completed Languages:
6 kyu
Permute a Palindrome
3,390kgashok
Completed Languages:
6 kyu
Unary function chainer
6,999tpatja
Completed Languages:
5 kyu
ISBN-10 Validation
10,487nklein
Completed Languages:
4 kyu
Validate Sudoku with size `NxN`
9,343cbmono
Completed Languages:
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