brainfuck
28th
30th
Card Number Validation
44th
Collatz
70th
Cubes
24th
Day of Week
1st
Fibonacci
1st
Fizz Buzz
1st
Fractions
66th
Leap Years
5th
Odious Numbers
85th
Ordinal Numbers
1st
Pascal’s Triangle
52nd
Quine
33rd1st1st
Reverse Polish Notation
22nd
Roman to Arabic
15th
ROT13
15th
19th
Scrambled Sort
11th
Tic-tac-toe
50th
United States
4th
Van Eck Sequence
72nd
π
17th