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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 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 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 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 Chars Time Submitted 300th MeWhenI 🇻🇦 789 93 429ms 27 days ago 302nd DialFrost 🇸🇬 789 185 1,678ms 12 days ago 303rd albanian-laundromat 🇺🇸 788 74 10ms 17 Mar 2026 304th albanian-laundromat 🇺🇸 788 207 1,219ms 6 Jan 2026 305th aksyristos 786 41 110ms 18 Mar 2026 305th emgordon154 786 41 40ms 24 days ago 305th nwellnhof 🇩🇪 786 41 79ms 22 days ago 308th DialFrost 🇸🇬 786 55 39ms 26 Mar 2026 309th emgordon154 785 186 1,669ms 11 days ago 310th CaedenHarper 🇨🇦 783 22 95ms 26 Mar 2026 310th vang1ong7ang 783 22 67ms 2 days ago 312th albanian-laundromat 🇺🇸 783 76 188ms 9 Mar 2026 312th MeWhenI 🇻🇦 783 76 188ms 25 Mar 2026 314th edsrzf 🇳🇿 782 50 1,276ms 26 Mar 2026 314th madex 🇩🇪 782 50 1,269ms 26 Mar 2026 316th albanian-laundromat 🇺🇸 782 85 100ms 6 Dec 2025 317th aksyristos 781 72 278ms 12 Mar 2026 317th blaztoma 🇱🇹 781 72 158ms 24 Mar 2026 317th Emutis 🇱🇹 781 72 130ms 24 Mar 2026 317th zacjl 781 72 137ms 26 Mar 2026 317th bizy-coder 781 72 129ms 25 days ago 322nd emgordon154 780 94 502ms 21 days ago 323rd albanian-laundromat 🇺🇸 779 75 455ms 6 Jan 2026 324th Alex-x90 🇺🇸 779 81 4ms 8 days ago 325th kg583 🇺🇸 779 106 40ms 9 May 2025 326th MeWhenI 🇻🇦 778 50 7ms 25 Mar 2026 327th CaedenHarper 🇨🇦 772 56 13ms 24 Mar 2026 327th MeWhenI 🇻🇦 772 56 12ms 26 Mar 2026 327th madex 🇩🇪 772 56 14ms 26 Mar 2026 327th edsrzf 🇳🇿 772 56 37ms 26 days ago 327th stefangimmillaro 772 56 13ms 23 days ago 332nd canissimia 🇦🇶 772 145 14ms 27 Mar 2026 333rd albanian-laundromat 🇺🇸 771 77 430ms 6 Dec 2025 334th scpchicken 🇵🇼 768 33 36ms 22 days ago 335th Shanethegamer 🇺🇸 767 42 41ms 13 Dec 2024 335th anter69 🇭🇺 767 42 195ms 4 Feb 2026 335th madex 🇩🇪 767 42 40ms 26 Mar 2026 335th GolfingSuccess 🇬🇷 767 42 189ms 26 days ago 339th error256 767 67 119ms 30 Jan 2026 340th albanian-laundromat 🇺🇸 767 192 201ms 27 Mar 2026 341st CLOStrophobic 🇮🇹 765 108 47ms 17 Feb 2025 342nd madex 🇩🇪 764 70 485ms 28 Mar 2026 343rd CaedenHarper 🇨🇦 764 96 465ms 24 Mar 2026 344th emgordon154 764 113 96ms 25 days ago 345th albanian-laundromat 🇺🇸 763 47 1,083ms 5 Jan 2026 346th albanian-laundromat 🇺🇸 762 265 68ms 8 Dec 2025 347th albanian-laundromat 🇺🇸 761 53 806ms 6 Dec 2025 348th MeWhenI 🇻🇦 761 286 230ms 25 Mar 2026 349th lukegustafson 🇺🇸 760 74 194ms 9 Mar 2026 350th DialFrost 🇸🇬 756 97 578ms 27 days ago 350th Jacob385 756 97 402ms 14 days ago 352nd Steffan153 🇫🇮 753 114 54ms 26 days ago 353rd 4atj 752 36 228ms 21 May 2025 354th Shanethegamer 🇺🇸 752 52 1,584ms 13 Dec 2024 355th Shanethegamer 🇺🇸 752 67 408ms 7 May 2025 355th CaedenHarper 🇨🇦 752 67 565ms 21 Mar 2026 355th fuzzylojik-golf 🇺🇸 752 67 481ms 24 Mar 2026 355th MeWhenI 🇻🇦 752 67 1,038ms 26 days ago 355th duckyluuk 🇳🇱 752 67 482ms 12 days ago 360th Natanaelel 🇸🇪 750 75 20ms 11 May 2025 360th commandz0 🇺🇸 750 75 1,254ms 27 Aug 2025 360th GolfingSuccess 🇬🇷 750 75 18ms 11 Jan 2026 360th madex 🇩🇪 750 75 26ms 18 Mar 2026 360th CaedenHarper 🇨🇦 750 75 158ms 21 Mar 2026 360th edsrzf 🇳🇿 750 75 18ms 25 Mar 2026 360th zgialor-lab 750 75 24ms 25 Mar 2026 360th DialFrost 🇸🇬 750 75 28ms 29 Mar 2026 360th sean-niemann 🇺🇸 750 75 181ms 30 Mar 2026 360th stefangimmillaro 750 75 26ms 23 days ago 360th FortuiteMan 🇫🇷 750 75 23ms 18 days ago 360th vang1ong7ang 750 75 19ms 2 days ago 372nd Lv0Sys 🇵🇱 749 43 41ms 26 Mar 2026 373rd Shanethegamer 🇺🇸 747 89 106ms 13 Dec 2024 374th Shanethegamer 🇺🇸 742 63 178ms 7 May 2025 375th albanian-laundromat 🇺🇸 742 108 31ms 5 Jan 2026 376th Shanethegamer 🇺🇸 741 99 551ms 24 Sep 2025 377th AlephSquirrel 740 76 38ms 3 Dec 2025 377th MeWhenI 🇻🇦 740 76 605ms 16 Mar 2026 377th duckyluuk 🇳🇱 740 76 117ms 26 Mar 2026 380th GolfingSuccess 🇬🇷 737 112 44ms 24 Jan 2026 381st albanian-laundromat 🇺🇸 736 97 46ms 6 Dec 2025 382nd Shanethegamer 🇺🇸 735 81 339ms 3 Jun 2025 383rd aksyristos 733 59 19ms 30 Mar 2026 383rd acollett89 733 59 15ms 30 Mar 2026 385th h3ra993huskp 🇯🇵 733 100 436ms 29 Mar 2026 385th kmathis22 733 100 567ms 27 days ago 387th Natanaelel 🇸🇪 732 37 10ms 11 May 2025 388th Shanethegamer 🇺🇸 731 77 18ms 13 Dec 2024 388th addmai 731 77 20ms 24 Jul 2025 388th hiichbindermax 731 77 18ms 17 Aug 2025 388th 5cw 🇺🇸 731 77 20ms 22 Aug 2025 388th davecame 731 77 142ms 25 Sep 2025 388th SirBogman 🇺🇸 731 77 244ms 13 Oct 2025 388th jtaxen 731 77 27ms 16 Oct 2025 388th Matter1024 🇮🇳 731 77 19ms 12 Feb 2026 388th KasperKivimaeki 🇫🇮 731 77 589ms 16 Mar 2026 388th StefanHabel 🇨🇦 731 77 606ms 24 Mar 2026 388th ahmetdemirag 🇨🇾 731 77 18ms 24 Mar 2026 388th tomh1012 731 77 19ms 24 Mar 2026 388th qpwoeirut 731 77 19ms 25 Mar 2026 First Prev 301–400 of 568 Next Last