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Speed up prime counting
8twoPi
Completed Languages:
6 kyu
Rotate Array
2,193cjmcgraw
Completed Languages:
4 kyu
Next smaller number with the same digits
11,321LesRamer
Completed Languages:
6 kyu
Who has the most money?
4,785MrAppa
Completed Languages:
6 kyu
Valid Phone Number
19,910xDranik
Completed Languages:
4 kyu
Most frequently used words in a text
28,259markprzepiora
Completed Languages:
6 kyu
Pascal's Triangle #2
5,797Jeroko
Completed Languages:
6 kyu
Round by 0.5 steps
4,279vshjxyz
Completed Languages:
7 kyu
Coloured Triangles
10,911Avanta
Completed Languages:
4 kyu
All Balanced Parentheses
6,323xcthulhu
Completed Languages:
6 kyu
PI approximation
5,659g964
Completed Languages:
6 kyu
Permute a Palindrome
3,401kgashok
Completed Languages:
6 kyu
Unary function chainer
7,015tpatja
Completed Languages:
5 kyu
ISBN-10 Validation
10,597nklein
Completed Languages:
4 kyu
Validate Sudoku with size `NxN`
9,423cbmono
Completed Languages:
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