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 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 Bytes Time Submitted 160th kevokevol 920 50 1ms 28 Apr 2019 160th AaronGarbut 920 50 1ms 1 Aug 2019 160th xenophobia 920 50 1ms 13 Aug 2019 160th bengsparks 920 50 1ms 24 Jan 2020 160th paralysedforce 920 50 4ms 6 Dec 2020 160th gastropner 920 50 1ms 23 Dec 2020 160th SnapDragon64 920 50 1ms 3 Feb 2021 160th guliyevemil1 🇦🇿 920 50 1ms 3 Feb 2021 160th ccecka 920 50 1ms 27 Aug 2021 160th ColesHoles 920 50 1ms 6 Oct 2021 160th tegenton 920 50 2ms 6 Oct 2021 160th Hecate2 920 50 1ms 26 Oct 2021 160th yzkonchain 920 50 1ms 26 Oct 2021 160th thebuilder6 🇺🇸 920 50 2ms 22 Nov 2021 160th simon-biber 920 50 1ms 5 Feb 2022 160th MinorLegato 🇸🇪 920 50 1ms 5 May 2022 160th kskjer 920 50 1ms 12 Jun 2022 160th ColeBardin 920 50 1ms 30 Jul 2022 160th astdefu 920 50 1ms 10 Dec 2022 160th Grrisly 920 50 2ms 3 Nov 2023 160th Noam527 920 50 1ms 4 Apr 2024 160th Emsa001 920 50 2ms 18 May 2024 160th not-a-pokemon 920 50 1ms 14 May 2025 160th CheeseCake628 🇳🇴 920 50 2ms 9 mins ago 185th bac0id 902 51 1ms 11 Jul 2020 185th atakan-se 902 51 1ms 24 Sep 2020 185th iannisdezwart 🇳🇱 902 51 1ms 1 Feb 2021 185th jeremy-murphy 902 51 1ms 20 Mar 2021 185th Heathcorp 🇦🇺 902 51 1ms 31 Mar 2022 185th warmCabin 902 51 1ms 9 Apr 2022 185th ibexq 902 51 1ms 30 Sep 2022 185th aksyristos 902 51 1ms 17 Jan 2023 185th annoj 902 51 1ms 18 Jan 2023 185th Cloakless 🇬🇧 902 51 2ms 17 Feb 2023 185th olishenton 902 51 1ms 17 Feb 2023 185th Tavress 902 51 1ms 11 May 2023 185th annaproxy 902 51 1ms 18 May 2023 185th funnsam 🇭🇰 902 51 2ms 12 Jun 2023 185th sona-tau 902 51 1ms 26 Aug 2023 185th jacobly0 🇺🇸 902 51 1ms 4 Sep 2023 185th Kesefon 902 51 2ms 24 Oct 2023 185th elgan65536 902 51 2ms 11 Nov 2023 185th Xzyaihni 902 51 1ms 26 Apr 2024 185th 0scarB 902 51 1ms 15 Jun 2024 185th hrrs01 902 51 2ms 20 Aug 2024 185th LostSyntax21 🇬🇧 902 51 1ms 10 Sep 2024 185th bo1led-owl 902 51 1ms 14 Sep 2024 185th SirObby 🇫🇮 902 51 3ms 26 Jun 2025 209th clementblaudeau 885 52 1ms 7 Jun 2021 209th yudi-matsuzake 885 52 1ms 11 Aug 2021 209th Bobini1 🇵🇱 885 52 3ms 29 Oct 2021 209th wirewolf010 885 52 2ms 6 Jan 2022 209th CedricGebistorf 885 52 2ms 4 Mar 2022 209th Anonymousellama21 885 52 1ms 8 Jun 2022 209th jupj 🇫🇮 885 52 3ms 12 Aug 2022 209th slerpyyy 🇩🇪 885 52 1ms 21 Oct 2022 209th thatbirdguythatuknownot 885 52 1ms 8 Jan 2023 209th LogicalJoe 885 52 1ms 18 Mar 2023 209th yzhs 🇩🇪 885 52 1ms 23 Jun 2023 209th weliveinhell 🇭🇹 885 52 2ms 28 Dec 2023 209th ngthanhtrung23 885 52 1ms 7 Mar 2024 209th voytxt 🇨🇿 885 52 1ms 11 Mar 2024 209th HumanoidCPU 885 52 1ms 16 Mar 2024 209th ibrahimhanifceker 885 52 2ms 9 Aug 2024 209th kTheLemon 885 52 1ms 16 Mar 2025 209th Blendi-Goose 885 52 1ms 16 Mar 2025 209th Lv0Sys 🇵🇱 885 52 1ms 30 May 2025 209th prestosilver 🇺🇸 885 52 2ms 21 Nov 2025 209th balloffur 885 52 2ms 7 Dec 2025 230th AbhayAravinda 868 53 1ms 26 Jul 2020 230th neihousaigaai 868 53 1ms 8 May 2021 230th mohakkhowal 868 53 2ms 30 May 2021 230th puyuliao 868 53 1ms 26 Jul 2021 230th Bubbler-4 868 53 1ms 3 Nov 2021 230th c0d3-4-F00d 🇩🇪 868 53 5ms 6 Jan 2022 230th Gosefu 868 53 1ms 13 Jul 2022 230th raphaelimahorn 868 53 1ms 3 Oct 2022 230th namcartoon06 868 53 2ms 30 Jun 2023 230th gussy420 868 53 2ms 28 Oct 2023 230th Szum123321 🇵🇱 868 53 1ms 25 Nov 2023 First Prev 161–240 of 594 Next Last