brainfuck
28th
Card Number Validation
42nd
Collatz
59th
Day of Week
1st
Fibonacci
1st
Fizz Buzz
1st
Fractions
101st
Leap Years
1st
Odious Numbers
82nd
Ordinal Numbers
82nd
Pascal’s Triangle
48th
Quine
29th1st1st
Reverse Polish Notation
26th
Roman to Arabic
16th
ROT13
11th
11th
Tic-tac-toe
39th
United States
3rd
Van Eck Sequence
66th
π
22nd