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 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 Bytes Time Submitted 318th LexouDuck 793 58 1ms 24 Oct 2020 318th Evoniuk 793 58 1ms 30 May 2021 318th KatieLG 🇬🇧 793 58 2ms 19 Jun 2021 318th AIn0n 793 58 2ms 11 Jul 2021 318th garrisonhh 793 58 1ms 15 Aug 2021 318th bakaq 793 58 1ms 9 Nov 2021 318th MichalMarsalek 🇨🇿 793 58 1ms 18 Aug 2022 318th Baxi-codes 793 58 1ms 25 Dec 2022 318th kallmi28 🇨🇿 793 58 2ms 20 Oct 2023 318th Maximizer02 793 58 1ms 1 Mar 2024 318th kellantech 793 58 2ms 16 Dec 2025 318th kasarino 793 58 2ms 27 Jan 2026 333rd archee303 780 59 1ms 5 Feb 2020 333rd SubsTheTechnomancer 780 59 1ms 22 Apr 2021 333rd kayahr 780 59 2ms 18 Jun 2021 333rd wansacis 🇩🇪 780 59 1ms 20 Aug 2021 333rd VictorChemin 🇫🇷 780 59 1ms 24 Nov 2021 333rd aguyon1 780 59 1ms 17 Jun 2023 333rd 1231234md5 🇨🇳 780 59 1ms 20 Jan 2024 333rd yuchuehw 780 59 1ms 6 Jun 2024 333rd xyangst 780 59 1ms 15 Oct 2024 333rd Maashau 780 59 2ms 29 Nov 2025 333rd bitsandbeyond 🇳🇱 780 59 1ms 11 Jan 2026 333rd isaiah0311 🇺🇸 780 59 2ms 26 Jan 2026 345th shaneliu-zf 🇹🇼 767 60 1ms 6 Jul 2020 345th pkasting 767 60 2ms 6 Sep 2020 345th heypwesto 🇳🇿 767 60 1ms 20 Apr 2021 345th lesserfish 767 60 2ms 7 May 2021 345th Waterperry 767 60 1ms 2 Nov 2021 345th lemogne 767 60 1ms 13 Nov 2021 345th ClementCarre-BionomeeX 767 60 1ms 17 Nov 2021 345th stellartux 767 60 1ms 24 Dec 2023 345th lhulinsky 767 60 2ms 30 Jan 2026 354th dc03 754 61 1ms 13 Sep 2020 354th Non-J 754 61 1ms 27 Sep 2020 354th inverseLorentz 🇦🇺 754 61 1ms 12 Oct 2023 354th logvp 754 61 1ms 1 Feb 2024 354th wh3n3v3r 🇨🇿 754 61 1ms 15 Nov 2024 354th mttcrn 754 61 2ms 22 Mar 2025 360th uier 742 62 1ms 28 Dec 2019 360th jakingy 742 62 1ms 8 Jul 2020 360th aliakseikalosha 742 62 1ms 25 Apr 2021 360th rchalamala 742 62 1ms 7 Aug 2021 360th Omega65536 🇩🇪 742 62 1ms 8 Jul 2022 360th owen-c-parker 🇺🇸 742 62 1ms 28 Nov 2022 360th n8pjl 742 62 1ms 29 Oct 2023 360th h-hh-hhh 🇺🇦 742 62 1ms 2 Nov 2024 360th andrewjc2000 742 62 2ms 7 Mar 2025 360th matejmatik123 🇸🇰 742 62 2ms 27 Jun 2025 360th gigaprofisi 🇺🇸 742 62 2ms 15 Nov 2025 371st Tilka 730 63 2ms 3 May 2021 371st petreleon 730 63 2ms 20 Oct 2021 371st heabr12 730 63 1ms 6 Sep 2024 371st bpharaldsson 730 63 2ms 4 Feb 2026 375th lukasmoellerch 719 64 2ms 3 May 2021 375th bijlpieter 719 64 1ms 19 Nov 2021 375th BruceMcRooster 719 64 1ms 25 Mar 2022 375th 201170 719 64 1ms 29 Jul 2022 375th H3Rol4x 719 64 1ms 5 Jan 2023 375th galloj 🇨🇿 719 64 1ms 7 Feb 2023 375th elektricM 719 64 1ms 22 Sep 2023 375th jacekwladzinski 719 64 1ms 2 Oct 2025 375th GodlyProgrammer1 719 64 2ms 15 Nov 2025 384th Batzuga 708 65 1ms 10 Sep 2019 384th rosvik 🇳🇴 708 65 1ms 29 Apr 2020 384th loooph 708 65 1ms 2 Aug 2020 384th tfkls 708 65 1ms 18 Aug 2020 384th CaraCompSci 708 65 1ms 10 Oct 2020 384th sech1p 🇵🇱 708 65 2ms 30 Oct 2021 384th b10011 🇫🇮 708 65 1ms 3 Jan 2023 384th calinous 🇷🇴 708 65 1ms 27 Feb 2023 384th rifatx 708 65 1ms 24 Jul 2024 384th mhgockel 708 65 1ms 21 Jun 2025 394th citsur 697 66 1ms 1 Jun 2019 394th generot 🇧🇬 697 66 1ms 9 Apr 2020 394th resetcentral 697 66 2ms 22 May 2022 394th destofr 697 66 2ms 23 Aug 2022 394th piano-miles 697 66 1ms 30 Mar 2023 394th mikiymk 697 66 2ms 21 Sep 2023 394th feherd 697 66 1ms 16 Nov 2023 First Prev 321–400 of 604 Next Last