12 Days of Christmas
23rd
99 Bottles of Beer
17th
Abundant Numbers
38th
Christmas Trees
69th
CSS Colors
19th4th
Divisors
69th
Emojify
Evil Numbers
64th
Fibonacci
179th
Fizz Buzz
157th
Leap Years
97th
Morse Encoder
25th
Niven Numbers
84th
Odious Numbers
51st
Ordinal Numbers
35th
Pangram Grep
14th
Tongue-twisters
45th
United States