Gray Code Decoder in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 1st 2bular 0 7 282ms 5 Jul 2025 1st Natanaelel 🇸🇪 0 7 243ms 5 Jul 2025 3rd kg583 🇺🇸 0 10 910ms 8 May 2025 4th 2bular 0 13 5ms 9 Dec 2024 4th ovs-code 🇩🇪 0 13 4ms 5 Jan 2025 4th Natanaelel 🇸🇪 0 13 4ms 8 May 2025 4th SirBogman 🇺🇸 0 13 5ms 12 Oct 2025 4th GolfingSuccess 🇬🇷 0 13 4ms 27 days ago 9th namelessiw 0 14 335ms 25 Oct 2025 10th saito-ta 🇯🇵 0 18 79ms 11 May 2025 10th GolfingSuccess 🇬🇷 0 18 90ms 12 Jan 2026 12th pardouin 🇫🇷 0 20 77ms 25 Feb 2025 13th emgordon154 0 26 383ms 22 Nov 2025 14th GolfingSuccess 🇬🇷 0 27 31ms 14 days ago 15th 2bular 0 28 36ms 9 Oct 2025 15th SirBogman 🇺🇸 0 28 38ms 9 Oct 2025 15th albanian-laundromat 0 28 30ms 27 days ago 18th Natanaelel 🇸🇪 0 29 37ms 11 May 2025 18th ovs-code 🇩🇪 0 29 35ms 9 Oct 2025 20th error256 0 30 26ms 27 days ago 21st AlephSquirrel 0 31 8ms 3 Dec 2025 21st ovs-code 🇩🇪 0 31 10ms 3 Dec 2025 23rd Natanaelel 🇸🇪 0 33 142ms 8 May 2025 24th 4atj 0 35 411ms 21 May 2025 24th error256 0 35 86ms 27 days ago 26th 4atj 0 36 223ms 21 May 2025 27th saito-ta 🇯🇵 0 37 8ms 11 May 2025 27th Natanaelel 🇸🇪 0 37 9ms 11 May 2025 29th Natanaelel 🇸🇪 0 38 41ms 8 May 2025 29th ovs-code 🇩🇪 0 38 42ms 26 days ago 31st stefangimmillaro 0 41 68ms 9 May 2025 32nd Shanethegamer 🇺🇸 0 42 39ms 13 Dec 2024 32nd MeWhenI 🇻🇦 0 42 1,001ms 15 Apr 2025 32nd saito-ta 🇯🇵 0 42 386ms 10 May 2025 32nd AlephSquirrel 0 42 6ms 3 Dec 2025 32nd ovs-code 🇩🇪 0 42 6ms 7 Dec 2025 32nd anter69 🇭🇺 0 42 178ms 4 days ago 38th bitsandbeyond 🇳🇱 0 44 1,172ms 8 Dec 2025 38th error256 0 44 1,261ms 24 days ago 38th AdrienHache 🇫🇷 0 44 53ms 4 days ago 41st lyphyser 0 45 50ms 11 Feb 2025 42nd albanian-laundromat 0 47 941ms 5 Jan 2026 42nd kg583 🇺🇸 0 47 11ms 25 days ago 42nd anter69 🇭🇺 0 47 1,370ms 4 days ago 45th DialFrost 🇸🇬 0 48 55ms 16 Dec 2025 46th GolfingSuccess 🇬🇷 0 49 36ms 27 days ago 46th error256 0 49 334ms 26 days ago 48th ovs-code 🇩🇪 0 50 300ms 23 Feb 2025 48th Shanethegamer 🇺🇸 0 50 3,580ms 8 May 2025 48th error256 0 50 4,591ms 24 days ago 51st lukegustafson 🇺🇸 0 51 32ms 16 Jun 2025 51st GolfingSuccess 🇬🇷 0 51 38ms 27 days ago 51st sean-niemann 🇺🇸 0 51 34ms 24 days ago 54th Shanethegamer 🇺🇸 0 52 1,314ms 13 Dec 2024 54th antimon2 🇯🇵 0 52 302ms 16 Dec 2024 54th Shanethegamer 🇺🇸 0 52 171ms 32 hours ago 57th ovs-code 🇩🇪 0 53 125ms 30 May 2025 57th kg583 🇺🇸 0 53 6ms 2 Oct 2025 57th albanian-laundromat 0 53 1,031ms 6 Dec 2025 60th Shanethegamer 🇺🇸 0 54 41ms 13 Dec 2024 60th rucin93 🇵🇱 0 54 44ms 24 Feb 2025 60th error256 0 54 29ms 2 May 2025 60th albanian-laundromat 0 54 11ms 4 Jan 2026 64th Natanaelel 🇸🇪 0 55 13ms 8 May 2025 64th albanian-laundromat 0 55 2,247ms 6 Jan 2026 66th GolfingSuccess 🇬🇷 0 56 8ms 25 days ago 66th kg583 🇺🇸 0 56 8ms 25 days ago 68th edsrzf 🇳🇿 0 57 11ms 10 May 2025 69th GolfingSuccess 🇬🇷 0 59 175ms 27 days ago 69th error256 0 59 68ms 26 days ago 71st kg583 🇺🇸 0 60 424ms 1 Dec 2024 71st ovs-code 🇩🇪 0 60 517ms 23 Feb 2025 71st emgordon154 0 60 286ms 9 May 2025 71st GolfingSuccess 🇬🇷 0 60 445ms 11 Jan 2026 75th DialFrost 🇸🇬 0 61 35ms 24 Feb 2025 75th voytxt 🇨🇿 0 61 36ms 1 Jan 2026 77th Andrey-Plotnikov 0 62 34ms 12 Jan 2025 77th pardouin 🇫🇷 0 62 429ms 24 Feb 2025 77th sean-niemann 🇺🇸 0 62 160ms 19 May 2025 77th XenThe 🇬🇧 0 62 12ms 15 Jul 2025 1–80 of 239 Next Last