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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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL 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 ><> ALGOL 68 ArkScript 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 APL 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 401st Shanethegamer 🇺🇸 767 42 41ms 13 Dec 2024 401st anter69 🇭🇺 767 42 195ms 4 Feb 2026 401st madex 🇩🇪 767 42 40ms 26 Mar 2026 401st GolfingSuccess 🇬🇷 767 42 189ms 26 days ago 405th error256 767 67 119ms 30 Jan 2026 406th albanian-laundromat 🇺🇸 767 192 201ms 27 Mar 2026 407th CLOStrophobic 🇮🇹 765 108 47ms 17 Feb 2025 408th CaedenHarper 🇨🇦 764 96 465ms 24 Mar 2026 409th emgordon154 764 113 96ms 26 days ago 410th albanian-laundromat 🇺🇸 763 47 1,083ms 5 Jan 2026 411th albanian-laundromat 🇺🇸 762 265 68ms 8 Dec 2025 412th albanian-laundromat 🇺🇸 761 53 806ms 6 Dec 2025 413th MeWhenI 🇻🇦 761 286 230ms 25 Mar 2026 414th DialFrost 🇸🇬 756 97 578ms 30 Mar 2026 414th Jacob385 756 97 402ms 15 days ago 416th Steffan153 🇫🇮 753 114 54ms 26 days ago 417th 4atj 752 36 228ms 21 May 2025 418th Shanethegamer 🇺🇸 752 52 1,584ms 13 Dec 2024 419th Lv0Sys 🇵🇱 749 43 41ms 26 Mar 2026 420th Shanethegamer 🇺🇸 747 89 106ms 13 Dec 2024 421st caleblin125 742 87 19ms 13 days ago 422nd albanian-laundromat 🇺🇸 742 108 31ms 5 Jan 2026 423rd Shanethegamer 🇺🇸 741 99 551ms 24 Sep 2025 424th GolfingSuccess 🇬🇷 737 112 44ms 24 Jan 2026 425th albanian-laundromat 🇺🇸 736 97 46ms 6 Dec 2025 426th Shanethegamer 🇺🇸 735 81 339ms 3 Jun 2025 427th aksyristos 733 59 19ms 30 Mar 2026 427th acollett89 733 59 15ms 30 Mar 2026 429th h3ra993huskp 🇯🇵 733 100 436ms 29 Mar 2026 429th kmathis22 733 100 567ms 30 Mar 2026 431st Natanaelel 🇸🇪 732 37 10ms 11 May 2025 432nd Shanethegamer 🇺🇸 730 92 462ms 20 May 2025 433rd dokutan 726 101 415ms 17 days ago 434th MeWhenI 🇻🇦 725 87 4ms 27 days ago 435th plcc0 722 18 9ms 29 Mar 2026 436th MeWhenI 🇻🇦 721 81 463ms 27 days ago 437th madex 🇩🇪 719 75 465ms 27 Mar 2026 438th madex 🇩🇪 717 50 1,078ms 27 Mar 2026 439th Matter1024 🇮🇳 717 83 163ms 22 days ago 440th Andriamanitra 🇫🇮 716 45 42ms 24 Mar 2026 441st edsrzf 🇳🇿 715 94 459ms 20 May 2025 442nd albanian-laundromat 🇺🇸 709 61 13ms 4 Mar 2026 442nd gigaprofisi 🇺🇸 709 61 26ms 4 days ago 444th AlephSquirrel 709 76 427ms 3 Dec 2025 445th Shanethegamer 🇺🇸 708 80 5ms 3 Jun 2025 446th elgan65536 🇺🇸 708 117 163ms 29 Mar 2026 447th madex 🇩🇪 707 84 441ms 28 Mar 2026 448th madex 🇩🇪 707 94 109ms 28 Mar 2026 449th emgordon154 706 231 1,284ms 28 Mar 2026 450th Shanethegamer 🇺🇸 705 139 328ms 13 Dec 2024 451st firegene 🇮🇪 704 36 38ms 7 hours ago 452nd Matter1024 🇮🇳 700 46 41ms 24 Mar 2026 453rd aadenboy 🇺🇸 699 81 5ms 30 Mar 2026 454th Andrey-Plotnikov 698 62 61ms 12 Jan 2025 454th XenThe 🇬🇧 698 62 12ms 15 Jul 2025 454th JOrE20 698 62 26ms 27 Feb 2026 454th Protothor 698 62 12ms 27 Mar 2026 454th madeforlosers 698 62 26ms 26 days ago 454th dokutan 698 62 29ms 17 days ago 454th scpchicken 🇵🇼 698 62 13ms 5 days ago 461st madex 🇩🇪 694 39 9ms 28 Mar 2026 462nd albanian-laundromat 🇺🇸 690 95 114ms 6 Jan 2026 463rd CLOStrophobic 🇮🇹 690 104 23ms 18 Jan 2025 464th zakariamouhid 687 63 12ms 13 days ago 465th dokutan 687 74 167ms 17 days ago 466th dokutan 686 57 1,372ms 17 days ago 467th scpchicken 🇵🇼 686 92 4ms 5 days ago 468th KatieLG 🇬🇧 685 47 46ms 27 days ago 469th albanian-laundromat 🇺🇸 685 75 115ms 5 Jan 2026 470th albanian-laundromat 🇺🇸 684 19 4ms 13 Feb 2026 471st DialFrost 🇸🇬 679 48 54ms 16 Dec 2025 471st retrohun 679 48 2,663ms 21 days ago 473rd Arkadios200 678 98 116ms 18 days ago 474th Shanethegamer 🇺🇸 676 76 120ms 13 Dec 2024 475th Jonson26 673 109 386ms 17 days ago 476th CaedenHarper 🇨🇦 672 87 463ms 24 Mar 2026 477th AlephSquirrel 671 107 23ms 14 May 2025 478th Shanethegamer 🇺🇸 668 124 151ms 3 Jun 2025 479th KatieLG 🇬🇧 665 65 13ms 27 days ago 479th solisolu 665 65 12ms 40 hours ago 481st madex 🇩🇪 665 101 141ms 28 Mar 2026 482nd madex 🇩🇪 661 79 29ms 28 Mar 2026 483rd madex 🇩🇪 658 121 8ms 28 Mar 2026 484th KatieLG 🇬🇧 657 82 424ms 27 days ago 485th albanian-laundromat 🇺🇸 653 80 28ms 25 Mar 2026 486th Mikey-Beep 🇬🇧 652 99 25ms 19 days ago 487th Shanethegamer 🇺🇸 648 75 67ms 7 May 2025 488th JOrE20 645 100 46ms 15 Dec 2025 488th tails618 645 100 22ms 14 days ago 490th Yax42 🇫🇷 636 68 13ms 24 Mar 2026 491st madex 🇩🇪 628 87 12ms 27 Mar 2026 492nd Shanethegamer 🇺🇸 627 68 254ms 13 Dec 2024 493rd GolfingSuccess 🇬🇷 626 137 91ms 26 Mar 2026 494th HumanoidCPU 623 133 169ms 25 Mar 2026 495th Shanethegamer 🇺🇸 622 94 427ms 13 Dec 2024 496th Shanethegamer 🇺🇸 619 96 437ms 3 Jun 2025 497th IISResetMe 618 58 294ms 27 Mar 2026 498th UnderKoen 🇳🇱 617 139 1,143ms 25 Mar 2026 499th Shanethegamer 🇺🇸 615 114 1,542ms 9 May 2025 500th brian124634 613 103 4ms 25 days ago First Prev 401–500 of 570 Next Last