12 Days of Christmas
9th
99 Bottles of Beer
7th
Abundant Numbers
2nd
brainfuck
6th
Christmas Trees
25th7th7th
70th
CSS Colors
Cubes
6th
Diamonds
4th
Divisors
15th
Emirp Numbers
1st
Evil Numbers
12th
Fibonacci
34th
Fizz Buzz
35th
Foo Fizz Buzz Bar
52nd
Happy Numbers
1st
Leap Years
71st
Leyland Numbers
6th175th
Morse Decoder
7th
Morse Encoder
8th
Niven Numbers
23rd
Odious Numbers
13th
Ordinal Numbers
12th
Pangram Grep
13th
Pascal’s Triangle
5th
Pernicious Numbers
28th
Prime Numbers
8th
Quine
11th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
15th
Seven Segment
6th
Sierpiński Triangle
17th
Spelling Numbers
4th
Sudoku
3rd
United States