12 Days of Christmas
3rd
99 Bottles of Beer
5th
Abundant Numbers
1st
Abundant Numbers (Long)
1st
Arithmetic Numbers
2nd
Arrows
3rd
Ascending Primes
2nd
ASCII Table
1st
brainfuck
💎
Calendar
💎
Card Number Validation
3rd
Catalan Numbers
1st
Christmas Trees
1st
Collatz
1st
Continued Fractions
💎
CSS Colors
2nd
Day of Week
2nd
Diamonds
1st
Divisors
1st
Emirp Numbers
1st
Emirp Numbers (Long)
2nd
Emojify
3rd
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
2nd
Farey Sequence
2nd
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Fractions
1st
Gijswijt’s Sequence
2nd
Gray Code Decoder
💎
Gray Code Encoder
1st
Happy Numbers
1st
Happy Numbers (Long)
1st
Hexdump
1st
Intersection
3rd
Inventory Sequence
1st
ISBN
1st
Kaprekar Numbers
2nd
Kolakoski Constant
💎
Kolakoski Sequence
1st
Leap Years
1st
Leyland Numbers
2nd
Look and Say
2nd
Lucky Numbers
1st
Mandelbrot
1st
Medal Tally
1st
Morse Encoder
3rd
Multitap Input
2nd
Niven Numbers
1st
Niven Numbers (Long)
1st
Number Spiral
💎
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
1st
PalindromemordnilaP
3rd
Pangram Grep
1st
Partition Numbers
1st
Pascal’s Triangle
1st
Pernicious Numbers
1st
Pernicious Numbers (Long)
1st
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
1st
Recamán
1st
Reverse Polish Notation
3rd
Rock-paper-scissors-Spock-lizard
3rd
Roman to Arabic
3rd
ROT13
1st
Rule 110
3rd
Scrambled Sort
3rd
Seven Segment
7th
Sierpiński Triangle
2nd
Smith Numbers
4th
Spelling Numbers
5th
Ten-pin Bowling
3rd
Tic-tac-toe
2nd
Tongue-twisters
8th
Tower of Hanoi
1st
Transpose Sentence
1st
Trinomial Triangle
1st
United States
3rd
Vampire Numbers
2nd
Van Eck Sequence
1st
Zeckendorf Representation
💎
π
2nd
τ
2nd
𝑒
4th