Fibonacci in C 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 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 Calendar 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 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 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 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 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 Calendar 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 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 127th error256 939 49 2ms 29 Aug 2024 127th CaedenHarper 🇨🇦 939 49 2ms 16 Oct 2024 127th kdx2a 939 49 2ms 18 Dec 2024 127th stackofbears 939 49 2ms 20 Jan 2025 127th TeodorDyakov 🇧🇬 939 49 1ms 3 Mar 2025 127th 5quiwyrm 939 49 2ms 28 Jul 2025 127th Yax42 🇫🇷 939 49 2ms 9 Oct 2025 127th Andrey2001 939 49 2ms 11 days ago 159th osmith93 920 50 2ms 31 Mar 2019 159th kevokevol 920 50 1ms 28 Apr 2019 159th AaronGarbut 920 50 2ms 1 Aug 2019 159th xenophobia 920 50 2ms 13 Aug 2019 159th bengsparks 920 50 2ms 24 Jan 2020 159th paralysedforce 920 50 4ms 6 Dec 2020 159th gastropner 920 50 2ms 23 Dec 2020 159th SnapDragon64 920 50 2ms 3 Feb 2021 159th guliyevemil1 🇦🇿 920 50 2ms 3 Feb 2021 159th ccecka 920 50 2ms 27 Aug 2021 159th ColesHoles 920 50 2ms 6 Oct 2021 159th tegenton 920 50 2ms 6 Oct 2021 159th Hecate2 920 50 2ms 26 Oct 2021 159th yzkonchain 920 50 2ms 26 Oct 2021 159th thebuilder6 🇺🇸 920 50 2ms 22 Nov 2021 159th simon-biber 920 50 2ms 5 Feb 2022 159th MinorLegato 🇸🇪 920 50 2ms 5 May 2022 159th kskjer 920 50 2ms 12 Jun 2022 159th ColeBardin 920 50 2ms 30 Jul 2022 159th astdefu 920 50 2ms 10 Dec 2022 159th Grrisly 920 50 2ms 3 Nov 2023 159th Noam527 920 50 2ms 4 Apr 2024 159th Emsa001 920 50 2ms 18 May 2024 159th not-a-pokemon 920 50 2ms 14 May 2025 183rd bac0id 902 51 2ms 11 Jul 2020 183rd atakan-se 902 51 2ms 24 Sep 2020 183rd iannisdezwart 🇳🇱 902 51 2ms 1 Feb 2021 183rd jeremy-murphy 902 51 2ms 20 Mar 2021 183rd Heathcorp 🇦🇺 902 51 2ms 31 Mar 2022 183rd warmCabin 902 51 2ms 9 Apr 2022 183rd ibexq 902 51 2ms 30 Sep 2022 183rd aksyristos 902 51 2ms 17 Jan 2023 183rd annoj 902 51 3ms 18 Jan 2023 183rd Cloakless 🇬🇧 902 51 2ms 17 Feb 2023 183rd olishenton 902 51 2ms 17 Feb 2023 183rd Tavress 902 51 2ms 11 May 2023 183rd annaproxy 902 51 2ms 18 May 2023 183rd funnsam 🇭🇰 902 51 2ms 12 Jun 2023 183rd sona-tau 902 51 2ms 26 Aug 2023 183rd jacobly0 🇺🇸 902 51 2ms 4 Sep 2023 183rd Kesefon 902 51 1ms 24 Oct 2023 183rd elgan65536 902 51 2ms 11 Nov 2023 183rd Xzyaihni 902 51 2ms 26 Apr 2024 183rd 0scarB 902 51 2ms 15 Jun 2024 183rd hrrs01 902 51 2ms 20 Aug 2024 183rd LostSyntax21 🇬🇧 902 51 1ms 10 Sep 2024 183rd bo1led-owl 902 51 2ms 14 Sep 2024 183rd SirObby 🇫🇮 902 51 2ms 26 Jun 2025 207th clementblaudeau 885 52 2ms 7 Jun 2021 207th yudi-matsuzake 885 52 2ms 11 Aug 2021 207th Bobini1 🇵🇱 885 52 2ms 29 Oct 2021 207th wirewolf010 885 52 2ms 6 Jan 2022 207th CedricGebistorf 885 52 2ms 4 Mar 2022 207th Anonymousellama21 885 52 3ms 8 Jun 2022 207th jupj 🇫🇮 885 52 2ms 12 Aug 2022 207th slerpyyy 🇩🇪 885 52 2ms 21 Oct 2022 207th thatbirdguythatuknownot 885 52 2ms 8 Jan 2023 207th LogicalJoe 885 52 2ms 18 Mar 2023 207th yzhs 🇩🇪 885 52 2ms 23 Jun 2023 207th weliveinhell 🇭🇹 885 52 2ms 28 Dec 2023 207th ngthanhtrung23 885 52 2ms 7 Mar 2024 207th voytxt 🇨🇿 885 52 1ms 11 Mar 2024 207th HumanoidCPU 885 52 2ms 16 Mar 2024 207th ibrahimhanifceker 885 52 2ms 9 Aug 2024 207th kTheLemon 885 52 2ms 16 Mar 2025 207th Blendi-Goose 885 52 2ms 16 Mar 2025 207th Lv0Sys 🇵🇱 885 52 2ms 30 May 2025 First Prev 151–225 of 571 Next Last