Gray Code Decoder in all languages in chars. 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 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 Multitap Input 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 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 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 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 Multitap Input 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 Chars Time Submitted 79th lifthrasiir 🇰🇷 0 64 182ms 11 Dec 2024 79th emgordon154 0 64 18ms 9 May 2025 83rd Shanethegamer 🇺🇸 0 65 264ms 13 Dec 2024 83rd albanian-laundromat 0 65 42ms 6 Dec 2025 85th dokutan 0 66 421ms 18 Aug 2025 85th dokutan 0 66 18ms 18 Aug 2025 85th Yax42 🇫🇷 0 66 402ms 5 days ago 85th AdrienHache 🇫🇷 0 66 414ms 5 days ago 89th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 89th Shanethegamer 🇺🇸 0 67 377ms 7 May 2025 89th namelessiw 0 67 399ms 2 Nov 2025 92nd 4atj 0 69 1,142ms 21 May 2025 92nd albanian-laundromat 0 69 529ms 6 Dec 2025 92nd error256 0 69 67ms 11 Dec 2025 95th btnlq 0 70 204ms 4 Dec 2024 95th kg583 🇺🇸 0 70 120ms 3 Oct 2025 95th kg583 🇺🇸 0 70 169ms 3 Oct 2025 98th edsrzf 🇳🇿 0 72 572ms 9 May 2025 98th kg583 🇺🇸 0 72 18ms 2 Oct 2025 100th IISResetMe 0 73 326ms 31 hours ago 101st rhdqor213 0 74 3ms 11 May 2025 101st saito-ta 🇯🇵 0 74 3ms 11 May 2025 103rd ovs-code 🇩🇪 0 75 19ms 23 Feb 2025 103rd Shanethegamer 🇺🇸 0 75 72ms 7 May 2025 103rd edsrzf 🇳🇿 0 75 708ms 9 May 2025 103rd error256 0 75 166ms 10 May 2025 103rd Natanaelel 🇸🇪 0 75 18ms 11 May 2025 103rd Seek64 🇩🇪 0 75 125ms 3 Jun 2025 103rd commandblockguy 🇺🇸 0 75 1,176ms 27 Aug 2025 103rd JOrE20 🇺🇸 0 75 17ms 17 days ago 103rd albanian-laundromat 0 75 105ms 6 days ago 103rd albanian-laundromat 0 75 375ms 5 days ago 103rd GolfingSuccess 🇬🇷 0 75 19ms 3 hours ago 114th Shanethegamer 🇺🇸 0 76 133ms 13 Dec 2024 114th edsrzf 🇳🇿 0 76 117ms 10 May 2025 114th ovs-code 🇩🇪 0 76 3ms 10 May 2025 114th AlephSquirrel 0 76 38ms 3 Dec 2025 114th AlephSquirrel 0 76 429ms 3 Dec 2025 114th GolfingSuccess 🇬🇷 0 76 3ms 66 mins ago 120th Shanethegamer 🇺🇸 0 77 19ms 13 Dec 2024 120th DialFrost 🇸🇬 0 77 16ms 8 May 2025 120th edsrzf 🇳🇿 0 77 1,937ms 9 May 2025 120th Natanaelel 🇸🇪 0 77 3ms 11 May 2025 120th lukegustafson 🇺🇸 0 77 17ms 16 Jun 2025 120th addmai 0 77 19ms 24 Jul 2025 120th hiichbindermax 0 77 17ms 17 Aug 2025 120th 5cw 🇺🇸 0 77 17ms 22 Aug 2025 120th davecame 0 77 140ms 25 Sep 2025 120th SirBogman 🇺🇸 0 77 230ms 13 Oct 2025 120th jtaxen 0 77 19ms 16 Oct 2025 120th albanian-laundromat 0 77 18ms 25 Nov 2025 120th albanian-laundromat 0 77 366ms 6 Dec 2025 133rd jameswmccarty 0 78 18ms 29 Mar 2025 133rd DialFrost 🇸🇬 0 78 939ms 10 May 2025 133rd DialFrost 🇸🇬 0 78 3ms 10 May 2025 133rd solisolu 0 78 18ms 10 Nov 2025 137th KasperKivimaeki 🇫🇮 0 79 3ms 1 Nov 2025 138th Shanethegamer 🇺🇸 0 80 5ms 3 Jun 2025 139th Shanethegamer 🇺🇸 0 81 291ms 3 Jun 2025 140th bricknellj 0 82 16ms 30 Jan 2025 141st kg583 🇺🇸 0 83 435ms 2 Oct 2025 142nd albanian-laundromat 0 84 9ms 11 Dec 2025 143rd Shanethegamer 🇺🇸 0 85 11ms 13 Dec 2024 143rd edsrzf 🇳🇿 0 85 1,029ms 25 May 2025 143rd albanian-laundromat 0 85 92ms 6 Dec 2025 146th kg583 🇺🇸 0 86 22ms 2 Oct 2025 146th kg583 🇺🇸 0 86 412ms 3 Oct 2025 148th sean-niemann 🇺🇸 0 87 42ms 9 May 2025 149th edsrzf 🇳🇿 0 88 1,932ms 15 May 2025 149th Upload-and-View 🇺🇦 0 88 72ms 2 Sep 2025 149th solisolu 0 88 3ms 11 Nov 2025 149th albanian-laundromat 0 88 1,315ms 6 days ago 153rd Shanethegamer 🇺🇸 0 89 97ms 13 Dec 2024 154th sean-niemann 🇺🇸 0 90 6ms 10 May 2025 154th rucin93 🇵🇱 0 90 7ms 10 May 2025 156th ovs-code 🇩🇪 0 91 261ms 13 Dec 2025 157th Shanethegamer 🇺🇸 0 92 442ms 20 May 2025 158th Shanethegamer 🇺🇸 0 94 334ms 13 Dec 2024 158th edsrzf 🇳🇿 0 94 458ms 20 May 2025 160th albanian-laundromat 0 95 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