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 11th Luca2812 979 47 2ms 1 Mar 2024 11th neel11235813 979 47 2ms 26 Mar 2024 11th Mandrzejy 🇵🇱 979 47 2ms 1 Apr 2024 11th Herbert00709 🇵🇱 979 47 2ms 1 Apr 2024 11th Flying-Toast 979 47 2ms 25 Apr 2024 11th jipsong 🇩🇪 979 47 3ms 1 Jul 2024 11th Kacarott 🇦🇺 979 47 2ms 29 Aug 2024 11th edsrzf 🇳🇿 979 47 2ms 12 Sep 2024 11th pardouin 🇫🇷 979 47 2ms 22 Sep 2024 11th SimBys 979 47 2ms 22 Oct 2024 11th AdrienHache 🇫🇷 979 47 2ms 16 Dec 2024 11th kaurakeksi 🇫🇮 979 47 1ms 29 Dec 2024 11th rucin93 🇵🇱 979 47 2ms 16 Jan 2025 11th Natanaelel 🇸🇪 979 47 2ms 24 Jan 2025 11th Iznoanygod 🇺🇸 979 47 2ms 16 Apr 2025 11th b-illy 🇬🇧 979 47 2ms 31 May 2025 11th emgordon154 979 47 2ms 1 Jun 2025 11th oscargeerts 979 47 2ms 23 Jun 2025 11th iczelia 🇩🇪 979 47 2ms 7 days ago 11th luuumine 🇫🇷 979 47 2ms 15 hours ago 96th madeve-unipi 958 48 1ms 8 Oct 2019 96th Alesun 🇮🇹 958 48 3ms 15 Oct 2019 96th BenAns 958 48 3ms 18 Sep 2020 96th BBoehm 🇩🇪 958 48 3ms 10 Dec 2020 96th Indivicivet 958 48 2ms 16 Mar 2021 96th Stenzel 958 48 2ms 20 Mar 2021 96th tsunderu 🇯🇵 958 48 2ms 13 Sep 2021 96th syntax-rules 958 48 2ms 25 Dec 2022 96th CatsAreFluffy 958 48 2ms 18 Feb 2023 96th Parma-Jon 958 48 2ms 20 Mar 2023 96th cesarm4 958 48 2ms 5 May 2023 96th ognen98 958 48 2ms 10 Jun 2023 96th southpolenator 958 48 2ms 11 Jun 2023 96th nyoshe 958 48 2ms 30 Jun 2023 96th ListeriaM 958 48 2ms 21 Aug 2023 96th ihebu 🇹🇳 958 48 2ms 20 Dec 2023 96th YellowBunnyGit 958 48 2ms 28 Dec 2023 96th retrohun 958 48 2ms 13 Jan 2024 96th quesswho 🇸🇪 958 48 2ms 31 Mar 2024 96th Us1ngTh3Hub 958 48 2ms 2 Apr 2024 96th IlkkaTakala 958 48 2ms 29 Apr 2024 96th cefqrn 958 48 2ms 26 May 2024 96th wuzekai518 958 48 2ms 24 Jul 2024 96th Jacob385 958 48 2ms 30 Jul 2024 96th rniii 958 48 2ms 24 Sep 2024 96th plcc0 958 48 2ms 27 Mar 2025 96th Babafaba 958 48 2ms 14 hours ago 123rd DavidSkrundz 939 49 2ms 25 Jan 2020 123rd hugohutri 939 49 2ms 28 Jan 2020 123rd JuhoHeiskanen 939 49 2ms 19 Feb 2020 123rd Sayan505 🇮🇳 939 49 2ms 23 Feb 2020 123rd marcin7Cd 939 49 2ms 15 May 2020 123rd nexaitch 939 49 2ms 6 Jul 2020 123rd nairda1705 939 49 2ms 16 Oct 2020 123rd djeedjay 🇳🇱 939 49 2ms 25 Oct 2020 123rd elttil 939 49 2ms 1 Feb 2021 123rd Re-Adventures 🇮🇳 939 49 2ms 13 Apr 2021 123rd Spruill-1 939 49 1ms 1 Sep 2021 123rd Waffle3z 939 49 2ms 2 Sep 2021 123rd MichaelMBradley 🇨🇦 939 49 4ms 21 Mar 2022 123rd orthoplex 🇨🇽 939 49 2ms 6 Apr 2022 123rd solmyr2000 939 49 1ms 18 Jun 2022 123rd michael-pruglo 🇺🇦 939 49 2ms 13 Jul 2022 123rd jhpaques 🇫🇷 939 49 1ms 3 Dec 2022 123rd cmayer777 939 49 2ms 6 Jan 2023 123rd scpchicken 🇵🇼 939 49 2ms 8 Jan 2023 123rd ansgustjd 939 49 2ms 16 May 2023 123rd tailorspy 939 49 1ms 14 Sep 2023 123rd Vinterion 939 49 2ms 5 Nov 2023 123rd RealAMC 🇳🇿 939 49 2ms 24 Nov 2023 123rd oceko 939 49 2ms 13 Feb 2024 123rd dokutan 939 49 1ms 13 Jul 2024 123rd error256 939 49 2ms 29 Aug 2024 123rd CaedenHarper 🇨🇦 939 49 2ms 16 Oct 2024 123rd kdx2a 939 49 2ms 18 Dec 2024 First Prev 76–150 of 559 Next Last