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 80th ovs-code 🇩🇪 0 60 502ms 23 Feb 2025 80th emgordon154 0 60 274ms 9 May 2025 80th GolfingSuccess 🇬🇷 0 60 445ms 11 Jan 2026 80th Steffan153 🇫🇮 0 60 446ms 25 hours ago 85th DialFrost 🇸🇬 0 61 26ms 24 Feb 2025 85th voytxt 🇨🇿 0 61 42ms 1 Jan 2026 87th Andrey-Plotnikov 0 62 26ms 12 Jan 2025 87th pardouin 🇫🇷 0 62 416ms 24 Feb 2025 87th sean-niemann 🇺🇸 0 62 160ms 19 May 2025 87th XenThe 🇬🇧 0 62 13ms 15 Jul 2025 87th sean-niemann 🇺🇸 0 62 401ms 15 Jan 2026 92nd Shanethegamer 🇺🇸 0 63 171ms 7 May 2025 92nd sean-niemann 🇺🇸 0 63 7ms 9 May 2025 92nd rucin93 🇵🇱 0 63 7ms 10 May 2025 92nd edsrzf 🇳🇿 0 63 6ms 10 May 2025 92nd targrik 0 63 7ms 8 Oct 2025 92nd albanian-laundromat 0 63 15ms 7 Dec 2025 92nd GolfingSuccess 🇬🇷 0 63 7ms 12 Jan 2026 99th error256 0 64 4,378ms 15 Jan 2026 100th GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 101st Yax42 🇫🇷 0 66 398ms 6 Jan 2026 101st AdrienHache 🇫🇷 0 66 423ms 6 Jan 2026 101st GolfingSuccess 🇬🇷 0 66 10ms 12 Jan 2026 101st JOrE20 0 66 34ms 9 days ago 105th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 105th Shanethegamer 🇺🇸 0 67 436ms 7 May 2025 105th emgordon154 0 67 396ms 9 May 2025 105th namelessiw 0 67 441ms 2 Nov 2025 105th error256 0 67 146ms 21 days ago 110th lifthrasiir 🇰🇷 0 68 559ms 11 Dec 2024 110th Shanethegamer 🇺🇸 0 68 257ms 13 Dec 2024 112th khvdm 0 69 142ms 13 Jan 2025 112th 4atj 0 69 1,159ms 21 May 2025 112th albanian-laundromat 0 69 489ms 6 Dec 2025 112th GolfingSuccess 🇬🇷 0 69 394ms 14 Jan 2026 116th btnlq 0 70 193ms 4 Dec 2024 116th error256 0 70 133ms 15 Jan 2026 118th GolfingSuccess 🇬🇷 0 71 3ms 12 Jan 2026 118th GolfingSuccess 🇬🇷 0 71 27ms 12 Jan 2026 118th GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 121st edsrzf 🇳🇿 0 72 546ms 9 May 2025 121st dokutan 0 72 525ms 15 Aug 2025 121st kg583 🇺🇸 0 72 18ms 2 Oct 2025 121st error256 0 72 19ms 12 Jan 2026 125th IISResetMe 0 73 256ms 10 Jan 2026 125th pardouin 🇫🇷 0 73 179ms 5 days ago 125th Steffan153 🇫🇮 0 73 198ms 25 hours ago 128th rhdqor213 0 74 3ms 11 May 2025 128th saito-ta 🇯🇵 0 74 3ms 11 May 2025 128th kg583 🇺🇸 0 74 138ms 3 Oct 2025 128th error256 0 74 3ms 12 Jan 2026 132nd kg583 🇺🇸 0 75 124ms 1 Dec 2024 132nd hallvabo 🇳🇴 0 75 131ms 30 Dec 2024 132nd ovs-code 🇩🇪 0 75 19ms 23 Feb 2025 132nd Shanethegamer 🇺🇸 0 75 71ms 7 May 2025 132nd edsrzf 🇳🇿 0 75 669ms 9 May 2025 132nd Natanaelel 🇸🇪 0 75 20ms 11 May 2025 132nd Seek64 🇩🇪 0 75 125ms 3 Jun 2025 132nd commandz0 🇺🇸 0 75 1,210ms 27 Aug 2025 132nd albanian-laundromat 0 75 125ms 5 Jan 2026 132nd albanian-laundromat 0 75 370ms 6 Jan 2026 132nd GolfingSuccess 🇬🇷 0 75 18ms 11 Jan 2026 143rd Shanethegamer 🇺🇸 0 76 129ms 13 Dec 2024 143rd edsrzf 🇳🇿 0 76 111ms 10 May 2025 143rd ovs-code 🇩🇪 0 76 3ms 10 May 2025 143rd AlephSquirrel 0 76 43ms 3 Dec 2025 143rd AlephSquirrel 0 76 445ms 3 Dec 2025 148th CornerMercury 🇬🇧 0 77 19ms 3 Dec 2024 148th ndren 0 77 20ms 3 Dec 2024 148th lifthrasiir 🇰🇷 0 77 192ms 11 Dec 2024 148th Shanethegamer 🇺🇸 0 77 19ms 13 Dec 2024 148th DialFrost 🇸🇬 0 77 19ms 8 May 2025 148th emgordon154 0 77 38ms 9 May 2025 148th edsrzf 🇳🇿 0 77 1,938ms 9 May 2025 148th Natanaelel 🇸🇪 0 77 3ms 11 May 2025 148th lukegustafson 🇺🇸 0 77 18ms 16 Jun 2025 148th addmai 0 77 20ms 24 Jul 2025 148th hiichbindermax 0 77 19ms 17 Aug 2025 148th 5cw 🇺🇸 0 77 18ms 22 Aug 2025 148th davecame 0 77 150ms 25 Sep 2025 First Prev 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