Fibonacci in C in chars. 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 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 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 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 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 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 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 Chars Time Submitted 480th s-gannon 556 81 14ms 3 May 2023 482nd markus-rekdal 549 82 11ms 4 Jun 2019 482nd stdstijn 549 82 2ms 10 May 2020 482nd Adrien-AM 549 82 12ms 31 Jan 2022 482nd CameronGBell 549 82 2ms 10 Nov 2022 482nd dpethes 549 82 2ms 9 Jan 2024 482nd PyryL 🇫🇮 549 82 2ms 23 Aug 2024 482nd jorbDehmel 🇺🇸 549 82 1ms 20 Sep 2024 489th PeriBooty 542 83 11ms 26 Nov 2019 489th Smetalo 542 83 1ms 25 Aug 2022 489th Qruintrox 542 83 2ms 24 Jun 2023 492nd phpboyscout 536 84 2ms 26 May 2021 492nd OttscoMC 536 84 1ms 18 Jun 2021 492nd ANovelForStudy 536 84 1ms 9 Jun 2023 492nd fkantelberg 536 84 2ms 15 Jul 2023 492nd sbercx 536 84 11ms 29 Jul 2023 497th mxwli 529 85 1ms 16 May 2021 497th Kasci 529 85 2ms 7 Dec 2021 497th stonethurg 529 85 2ms 14 Feb 2023 497th VictorFordham 529 85 1ms 4 Mar 2023 497th ilovapples 529 85 2ms 9 Jun 2025 502nd drkameleon 🇪🇸 523 86 10ms 28 Jan 2020 502nd ms-tingliang 523 86 2ms 6 Aug 2022 502nd AZ9tumas 523 86 2ms 15 Oct 2022 502nd GWStuart 523 86 2ms 15 Sep 2023 502nd Giantnoodlemonster 523 86 2ms 15 Sep 2024 507th vonKrafft 517 87 2ms 25 Mar 2020 507th tm70 517 87 11ms 23 Jan 2021 507th ArianKG 517 87 1ms 21 Mar 2024 510th ottsco7697 511 88 1ms 3 Jul 2019 510th RustemB 🇷🇺 511 88 1ms 25 Aug 2020 510th TerenceTux 511 88 1ms 6 Jun 2023 510th BpbjsGreen 🇨🇳 511 88 1ms 7 Jul 2024 510th kurkale6ka 511 88 2ms 15 Aug 2024 515th ryguyNelson 506 89 1ms 12 Aug 2020 515th mhenion8293 🇺🇸 506 89 2ms 5 Jun 2021 515th ze-h 🇺🇸 506 89 1ms 19 Feb 2022 515th S-Ruban 506 89 1ms 26 Feb 2023 515th uncertaain 506 89 1ms 28 Dec 2023 515th tik25 506 89 1ms 28 Mar 2024 515th iilegacyyii 506 89 7ms 20 Jan 2025 522nd humz2k 500 90 1ms 26 Sep 2022 522nd Jaro32768 🇸🇰 500 90 1ms 20 Sep 2023 522nd AstroOrbis 500 90 2ms 14 days ago 525th Verlio-H 495 91 2ms 17 Feb 2025 526th lilyyy411 489 92 1ms 10 Sep 2021 526th bryanmytko 489 92 14ms 5 Jul 2022 526th 104210 489 92 2ms 14 Sep 2022 526th DrPiranoid 489 92 1ms 22 Sep 2022 530th sm1lko 484 93 2ms 7 Dec 2022 530th aDwarfNamedUrist 484 93 11ms 12 Jul 2023 530th Sephirem98 484 93 1ms 24 Oct 2023 530th Unknownuserfrommars 484 93 1ms 20 Nov 2024 530th 0xA00 484 93 11ms 4 Dec 2025 535th ArturLukianov 479 94 1ms 10 Aug 2020 535th Mortis66666 479 94 2ms 27 May 2022 535th PeytonNowlin 479 94 2ms 9 Oct 2025 538th abailey2020 🇺🇸 474 95 2ms 3 Oct 2020 538th lemmaandrew 474 95 2ms 23 Jan 2021 538th zt14427 474 95 1ms 28 Feb 2023 538th epic-programmer-guy 474 95 2ms 17 Dec 2023 538th MID246 474 95 2ms 14 Nov 2024 543rd dmoa 469 96 2ms 21 Mar 2021 543rd shagunsingh30 469 96 1ms 2 Apr 2022 545th nico-bachner 464 97 2ms 28 Dec 2020 545th atazzam 🇺🇸 464 97 1ms 2 Sep 2022 547th GnotAGnelf 459 98 2ms 24 Nov 2020 547th kennyhow 459 98 1ms 27 Jan 2021 547th Robbe7730 459 98 1ms 17 Nov 2021 550th azure-blondon 450 100 2ms 18 Aug 2024 551st aaronze 🇦🇺 446 101 1ms 29 Apr 2021 551st NovemberOrWhatever 446 101 2ms 6 Nov 2022 553rd 4ndyJ 🇬🇧 441 102 2ms 17 Dec 2022 554th cgjohannsen 437 103 2ms 10 Jun 2022 555th 52525rr 433 104 1ms 20 Oct 2025 556th MisterrLuck 429 105 1ms 11 Sep 2023 557th adoxography 425 106 11ms 3 Oct 2019 557th siddharth2411 425 106 1ms 22 Mar 2020 559th MunibullahShah 417 108 2ms 31 Aug 2019 560th george1605 413 109 2ms 14 Feb 2023 First Prev 481–560 of 600 Next Last