12 Days of Christmas
3rd
Abundant Numbers
2nd
Arabic to Roman
2nd
Arrows
2nd
ASCII Table
2nd
Catalan Numbers
2nd
Christmas Trees
6th
Collatz
2nd
Cubes
3rd
Day of Week
2nd
Diamonds
4th
Divisors
2nd
Evil Numbers
3rd
Fibonacci
3rd
Fizz Buzz
8th
Foo Fizz Buzz Bar
2nd
Forsyth–Edwards Notation
2nd
Fractions
2nd
Inventory Sequence
2nd
ISBN
2nd
Leap Years
2nd
Medal Tally
3rd
Morse Decoder
2nd
Morse Encoder
2nd
Niven Numbers
3rd
Number Spiral
2nd
Odious Numbers
3rd
Ordinal Numbers
3rd
Pascal’s Triangle
2nd
Pernicious Numbers
2nd
Pernicious Numbers (Long)
2nd
Poker
2nd
Prime Numbers
2nd
Quine
2nd
Seven Segment
2nd