Arabic to Roman
670
Arrows
506
Card Number Validation
750
Christmas Trees
536
762
Collatz
900
Cubes
508
Emirp Numbers
628
Fibonacci
511
428
Fizz Buzz
703
Leap Years
731
ln 2
778
Morse Encoder
665
Prime Numbers
633
Roman to Arabic
321
Transpose Sentence
736
United States
Zeckendorf Representation
845
τ
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