The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 days. Why not try and solve them ahead of time?

Rankings: Languages

K in chars.

Bytes Chars

#	Hole	Medal
1^st	24 Game	🥈
2^nd	Abundant Numbers	🥈
3^rd	Abundant Numbers (Long)	🥉
4^th	Arabic to Roman	🥇
5^th	Arithmetic Numbers	🥇
6^th	Arrows	🥇
7^th	Ascending Primes	🥇
8^th	ASCII Table	🥇
9^th	Billiards	🥈
10^th	Card Number Validation	🥈
11^th	Collatz	🥉
12^th	Emirp Numbers	🥇
13^th	Emirp Numbers (Long)	🥇
14^th	Emojify	🥈
15^th	Evil Numbers	🥇
16^th	Evil Numbers (Long)	🥇
17^th	Factorial Factorisation	🥉
18^th	Fibonacci	🥇
19^th	Game of Life	🥈
20^th	Happy Numbers	🥇
21^st	Happy Numbers (Long)	🥈
22^nd	Hilbert Curve	🥇
23^rd	Intersection	🥈
24^th	ISBN	🥈
25^th	Kaprekar Numbers	🥇
26^th	Kolakoski Sequence	🥇
27^th	Levenshtein Distance	🥈
28^th	Look and Say	🥉
29^th	Lucky Tickets	🥈
30^th	Mahjong	🥇
31^st	Maze	🥇
32^nd	Medal Tally	🥈
33^rd	Multitap Input	🥈
34^th	Musical Chords	🥈
35^th	N Queens	🥈
36^th	Niven Numbers (Long)	🥈
37^th	Number Spiral	🥈
38^th	Odious Numbers	🥇
39^th	Odious Numbers (Long)	🥇
40^th	PalindromemordnilaP	🥉
41^st	Pangram Grep	🥉
42^nd	Partition Numbers	🥇
43^rd	Pascal’s Triangle	🥇
44^th	Pernicious Numbers (Long)	🥇
45^th	Poker	🥈
46^th	Polyominoes	🥇
47^th	Prime Numbers	🥇
48^th	Prime Numbers (Long)	🥇
49^th	Quine	🥇
50^th	Recamán	🥈
51^st	Reversi	🥈
52^nd	Rule 110	🥇
53^rd	Scrambled Sort	🥈
54^th	Set	🥇
55^th	Sierpiński Triangle	🥇
56^th	Smith Numbers	🥉
57^th	Star Wars GPT	🥇
58^th	Sudoku (Fill-in)	🥇
59^th	Topological Sort	🥇
60^th	Trinomial Triangle	🥇
61^st	United States	🥇