12 Days of Christmas
375
Abundant Numbers
668
Abundant Numbers (Long)
743
Arithmetic Numbers
591
Collatz
743
CSS Colors
102
Day of Week
627
Divisors
749
Emojify
272
Evil Numbers
633
Evil Numbers (Long)
624
Fibonacci
652
486
Fizz Buzz
839
710
Foo Fizz Buzz Bar
856
631
Fractions
551
ISBN
484
Leap Years
831
661
Morse Decoder
197
Morse Encoder
229
Niven Numbers
744
Niven Numbers (Long)
811
Odious Numbers
783
Odious Numbers (Long)
765
Ordinal Numbers
691
Pangram Grep
645
Prime Numbers
613
Prime Numbers (Long)
648
Seven Segment
363
Tongue-twisters
394
338
United States
207
π
226