12 Days of Christmas
36th147th
99 Bottles of Beer
49th
Arabic to Roman
30th146th
Arrows
22nd77th
Card Number Validation
21st
Christmas Trees
99th
CSS Colors
26th
Diamonds
41st107th
Evil Numbers
132nd
Fizz Buzz
291st892nd
Hexdump
19th
ISBN
26th
Morse Encoder
34th
Niven Numbers
81st213th
Odious Numbers
58th
Reverse Polish Notation
19th
Roman to Arabic
22nd
Tongue-twisters
8th