12 Days of Christmas
64th
99 Bottles of Beer
72nd
Arabic to Roman
16th
Christmas Trees
44th
Divisors
52nd
Evil Numbers
92nd
Fibonacci
107th
Fizz Buzz
190th
Happy Numbers
57th
Leap Years
98th
Morse Decoder
16th
Morse Encoder
17th
Odious Numbers
78th
Ordinal Numbers
22nd
Pangram Grep
56th
Pascal’s Triangle
29th
Pernicious Numbers
54th
Prime Numbers
60th
Rock-paper-scissors-Spock-lizard
13th