12 Days of Christmas
869
99 Bottles of Beer
719
Abundant Numbers
731
Arabic to Roman
398
Christmas Trees
731
CSS Colors
218
Cubes
452
Day of Week
651
Diamonds
395
Divisors
694
Emirp Numbers
498
Emojify
479
Evil Numbers
499
Fibonacci
719
Fizz Buzz
829992641
Happy Numbers
540
Intersection
672
Leap Years
758
Look and Say
615
Morse Decoder
316
Morse Encoder
356
Niven Numbers
820
Odious Numbers
597
Ordinal Numbers
841
Pangram Grep
591
Pascal’s Triangle
514
Pernicious Numbers
469
Poker
432
Prime Numbers
492
Quine
866
Rock-paper-scissors-Spock-lizard
703
Roman to Arabic
607
Rule 110
417
Seven Segment
627
Sierpiński Triangle
283
Spelling Numbers
687
Sudoku
319
Ten-pin Bowling
430
Tongue-twisters
639
United States
361