12 Days of Christmas
23rd
99 Bottles of Beer
17th
Abundant Numbers
38th
Christmas Trees
69th
CSS Colors
19th4th
Divisors
69th
Emojify
Evil Numbers
65th
Fibonacci
179th
Fizz Buzz
157th
Leap Years
97th
Morse Encoder
26th
Niven Numbers
85th
Odious Numbers
52nd
Ordinal Numbers
36th
Pangram Grep
14th
Tongue-twisters
46th
United States