brainfuck
28th
Card Number Validation
42nd
Collatz
59th
Cubes
42nd
Day of Week
1st
Fibonacci
1st
Fizz Buzz
1st
Fractions
59th
Leap Years
1st
Odious Numbers
79th
Ordinal Numbers
1st
Pascal’s Triangle
48th
Quine
29th1st1st
Reverse Polish Notation
26th
Roman to Arabic
16th
ROT13
11th
12th
Scrambled Sort
18th
Tic-tac-toe
39th
United States
3rd
Van Eck Sequence
67th
π
22nd