Arabic to Roman
668
Arrows
506
Card Number Validation
746
Christmas Trees
536
762
Collatz
899
Cubes
515
Emirp Numbers
628
Fibonacci
511
428
Fizz Buzz
703
Leap Years
730
ln 2
777
Morse Encoder
664
Prime Numbers
633
Roman to Arabic
320
Transpose Sentence
733
United States
Zeckendorf Representation
843
τ
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