Fibonacci in C in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang 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 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 121st 5quiwyrm 939 49 2ms 28 Jul 2025 121st Yax42 🇫🇷 939 49 2ms 13 days ago 121st Babafaba 939 49 2ms 2 days ago 121st luuumine 🇫🇷 939 49 2ms 6 hours ago 155th osmith93 920 50 2ms 31 Mar 2019 155th kevokevol 920 50 1ms 28 Apr 2019 155th AaronGarbut 920 50 2ms 1 Aug 2019 155th xenophobia 920 50 2ms 13 Aug 2019 155th bengsparks 920 50 2ms 24 Jan 2020 155th paralysedforce 920 50 4ms 6 Dec 2020 155th gastropner 920 50 2ms 23 Dec 2020 155th SnapDragon64 920 50 2ms 3 Feb 2021 155th guliyevemil1 🇦🇿 920 50 2ms 3 Feb 2021 155th ccecka 920 50 2ms 27 Aug 2021 155th ColesHoles 920 50 2ms 6 Oct 2021 155th tegenton 920 50 2ms 6 Oct 2021 155th Hecate2 920 50 2ms 26 Oct 2021 155th yzkonchain 920 50 2ms 26 Oct 2021 155th thebuilder6 🇺🇸 920 50 2ms 22 Nov 2021 155th simon-biber 920 50 2ms 5 Feb 2022 155th MinorLegato 🇸🇪 920 50 2ms 5 May 2022 155th kskjer 920 50 2ms 12 Jun 2022 155th ColeBardin 920 50 2ms 30 Jul 2022 155th astdefu 920 50 2ms 10 Dec 2022 155th Grrisly 920 50 2ms 3 Nov 2023 155th Noam527 920 50 2ms 4 Apr 2024 155th Emsa001 920 50 2ms 18 May 2024 155th not-a-pokemon 920 50 2ms 14 May 2025 179th bac0id 902 51 2ms 11 Jul 2020 179th atakan-se 902 51 2ms 24 Sep 2020 179th iannisdezwart 🇳🇱 902 51 2ms 1 Feb 2021 179th jeremy-murphy 902 51 2ms 20 Mar 2021 179th Heathcorp 🇦🇺 902 51 2ms 31 Mar 2022 179th warmCabin 902 51 2ms 9 Apr 2022 179th ibexq 902 51 2ms 30 Sep 2022 179th aksyristos 902 51 2ms 17 Jan 2023 179th annoj 902 51 3ms 18 Jan 2023 179th Cloakless 🇬🇧 902 51 2ms 17 Feb 2023 179th olishenton 902 51 2ms 17 Feb 2023 179th Tavress 902 51 2ms 11 May 2023 179th annaproxy 902 51 2ms 18 May 2023 179th funnsam 🇭🇰 902 51 2ms 12 Jun 2023 179th sona-tau 902 51 2ms 26 Aug 2023 179th jacobly0 🇺🇸 902 51 2ms 4 Sep 2023 179th Kesefon 902 51 1ms 24 Oct 2023 179th elgan65536 902 51 2ms 11 Nov 2023 179th Xzyaihni 902 51 2ms 26 Apr 2024 179th 0scarB 902 51 2ms 15 Jun 2024 179th hrrs01 902 51 2ms 20 Aug 2024 179th LostSyntax21 🇬🇧 902 51 1ms 10 Sep 2024 179th bo1led-owl 902 51 2ms 14 Sep 2024 179th SirObby 🇫🇮 902 51 2ms 26 Jun 2025 203rd clementblaudeau 885 52 2ms 7 Jun 2021 203rd yudi-matsuzake 885 52 2ms 11 Aug 2021 203rd Bobini1 🇵🇱 885 52 2ms 29 Oct 2021 203rd wirewolf010 885 52 2ms 6 Jan 2022 203rd CedricGebistorf 885 52 2ms 4 Mar 2022 203rd Anonymousellama21 885 52 3ms 8 Jun 2022 203rd jupj 🇫🇮 885 52 2ms 12 Aug 2022 203rd slerpyyy 🇩🇪 885 52 2ms 21 Oct 2022 203rd thatbirdguythatuknownot 885 52 2ms 8 Jan 2023 203rd LogicalJoe 885 52 2ms 18 Mar 2023 203rd yzhs 🇩🇪 885 52 2ms 23 Jun 2023 203rd weliveinhell 🇭🇹 885 52 2ms 28 Dec 2023 203rd ngthanhtrung23 885 52 2ms 7 Mar 2024 203rd voytxt 🇨🇿 885 52 1ms 11 Mar 2024 203rd HumanoidCPU 885 52 2ms 16 Mar 2024 203rd ibrahimhanifceker 885 52 2ms 9 Aug 2024 203rd kTheLemon 885 52 2ms 16 Mar 2025 203rd Blendi-Goose 885 52 2ms 16 Mar 2025 203rd Lv0Sys 🇵🇱 885 52 2ms 30 May 2025 222nd AbhayAravinda 868 53 2ms 26 Jul 2020 222nd neihousaigaai 868 53 2ms 8 May 2021 222nd mohakkhowal 868 53 2ms 30 May 2021 222nd puyuliao 868 53 1ms 26 Jul 2021 First Prev 151–225 of 559 Next Last