12 Days of Christmas
9th
99 Bottles of Beer
7th
Abundant Numbers
4th
brainfuck
6th
Christmas Trees
26th7th8th
82nd
CSS Colors
Cubes
6th
Day of Week
1st
Diamonds
7th
Divisors
18th
Emirp Numbers
1st
Evil Numbers
14th
Fibonacci
41st
Fizz Buzz
39th
Foo Fizz Buzz Bar
56th
Happy Numbers
1st
Leap Years
82nd
Leyland Numbers
7th196th
Morse Decoder
9th
Morse Encoder
9th
Niven Numbers
30th
Odious Numbers
14th
Ordinal Numbers
14th
Pangram Grep
15th
Pascal’s Triangle
8th
Pernicious Numbers
35th
Prime Numbers
13th
Quine
13th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
17th
Seven Segment
7th
Sierpiński Triangle
17th
Spelling Numbers
4th
Sudoku
3rd
United States