12 Days of Christmas
29th
Abundant Numbers
18th
brainfuck
26th
Christmas Trees
22nd
Diamonds
33rd
Divisors
15th
Emirp Numbers
27th
Evil Numbers
49th
Fibonacci
43rd
Fizz Buzz
21st
Happy Numbers
49th
Leap Years
19th
Morse Decoder
11th
Niven Numbers
42nd
Odious Numbers
53rd
Ordinal Numbers
18th
Pangram Grep
36th
Pascalβs Triangle
44th
Pernicious Numbers
55th
Prime Numbers
41st
Quine
20th
Roman to Arabic
16th
Seven Segment
52nd