12 Days of Christmas
401
Abundant Numbers
620
Abundant Numbers (Long)
688
Arithmetic Numbers
667
Collatz
760
Divisors
857
Emojify
425
Fibonacci
969947
Fizz Buzz
855
Foo Fizz Buzz Bar
725
ISBN
602
Niven Numbers
786
Niven Numbers (Long)
862
Pangram Grep
744750
Tongue-twisters
380
Vampire Numbers
71
π
57