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 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 Chars Time Submitted 398th michatmon 672 67 2ms 11 Jan 2022 398th martinnorling 🇸🇪 672 67 1ms 8 Feb 2022 398th JasonRaubenheimer 672 67 1ms 8 Jul 2023 398th jtaxen 672 67 1ms 26 Apr 2024 398th CutSandstone 672 67 1ms 5 Jul 2024 406th pingu19 662 68 1ms 16 Oct 2019 406th mxchen2001 662 68 2ms 18 Nov 2020 406th LeeCamp 662 68 1ms 28 Apr 2022 406th esseeffeenne 662 68 1ms 6 Jun 2022 406th GameChaos 662 68 1ms 16 Jun 2022 411th TornadoCookie 652 69 1ms 17 Oct 2022 411th xnacly 🇩🇪 652 69 1ms 30 Jun 2023 411th Pyro569 652 69 1ms 30 Jul 2023 411th eiburns 652 69 1ms 7 Sep 2023 411th viitanet 652 69 1ms 22 Oct 2023 411th hacker112 🇸🇪 652 69 1ms 12 Jun 2024 411th msbranicky 652 69 2ms 3 Jul 2024 411th SwordF-Official 652 69 1ms 3 Jun 2025 411th Alex-Huggett 🇬🇧 652 69 2ms 13 Sep 2025 411th zgialor-lab 652 69 2ms 17 Dec 2025 421st PatrickLove 643 70 1ms 26 Jun 2019 421st furokku 643 70 1ms 14 Feb 2021 421st gabe-gallegos 643 70 2ms 25 Mar 2025 421st RYSF13 🇨🇳 643 70 2ms 19 Jul 2025 425th chunky 634 71 1ms 2 Oct 2020 425th jackrosenb 634 71 1ms 7 Oct 2020 425th Lizard314 634 71 1ms 10 Nov 2020 425th yoshykai 634 71 1ms 16 Jun 2023 425th jccummi1 634 71 1ms 29 Oct 2023 425th LawrenceZ1A 🇨🇦 634 71 1ms 25 Feb 2024 425th nstearns96 🇬🇧 634 71 2ms 13 Sep 2024 432nd kendstott 625 72 1ms 25 Jun 2019 432nd kirbyyourmom 🇬🇧 625 72 2ms 2 Mar 2021 432nd mqyhlkahu 625 72 1ms 10 Sep 2023 432nd 0dyse 625 72 2ms 6 May 2025 436th DrProfPatPending 616 73 1ms 25 Jun 2019 436th nwdamgaard 616 73 2ms 19 Dec 2021 438th willpiam 608 74 1ms 21 Sep 2021 438th dillon-duncando 608 74 2ms 24 Dec 2021 438th Vexxter9 🇳🇱 608 74 1ms 20 Sep 2024 441st KiwiKoder0123 600 75 1ms 28 Jun 2019 441st StHagel 600 75 2ms 25 May 2023 441st Azearia 600 75 1ms 9 Aug 2023 441st NDR0216 🇹🇼 600 75 12ms 8 May 2024 441st RedzGoose 🇦🇺 600 75 1ms 19 Sep 2024 441st Sciman101 600 75 2ms 26 Mar 2025 447th HectorPeeters 592 76 11ms 26 Mar 2021 447th opsiff 592 76 2ms 8 Aug 2021 447th iwalker2702 592 76 2ms 9 Nov 2021 447th GreenBeansAgainstVeganism 592 76 11ms 28 May 2022 447th james-downey 592 76 12ms 14 Jul 2022 447th DaCuteRaccoon 592 76 1ms 12 Dec 2022 447th NeatCrown 🇨🇦 592 76 2ms 14 Dec 2022 447th tvcv901 592 76 10ms 22 Mar 2023 447th hjcafaroUC 592 76 2ms 5 Aug 2023 447th ridingqwerty 🇺🇸 592 76 11ms 21 Dec 2023 457th ramytarchichy 584 77 12ms 22 Jun 2019 457th EnergeticBark 584 77 2ms 14 Jul 2019 457th jngbsn 584 77 1ms 30 Jun 2020 457th ei14 584 77 11ms 23 Jun 2021 457th mickmurci 584 77 12ms 7 Apr 2023 457th IdkWhatIsIdk 584 77 1ms 27 Nov 2024 463rd DeepuBenson 577 78 1ms 27 Mar 2020 463rd dev-loop0 577 78 2ms 20 Aug 2020 463rd oschmidh 577 78 11ms 18 Nov 2020 463rd muztanger 577 78 2ms 1 Jan 2021 463rd 444nuits 577 78 12ms 31 Jan 2022 463rd junten1 577 78 1ms 18 Oct 2024 469th davidgblanes 570 79 2ms 22 Sep 2019 469th SiBeepBoop 570 79 17ms 14 Apr 2025 469th BlueGummi 570 79 13ms 30 hours ago 472nd volpi-m 🇫🇷 563 80 1ms 30 Aug 2020 472nd denballakh 563 80 1ms 25 Nov 2021 472nd Adix-null 🇱🇹 563 80 2ms 4 Jul 2023 472nd StupidHobbit 563 80 2ms 25 Nov 2025 472nd westerntoad 563 80 2ms 26 days ago 477th NJRist 🇺🇸 556 81 2ms 24 Nov 2022 477th s-gannon 556 81 14ms 3 May 2023 479th markus-rekdal 549 82 11ms 4 Jun 2019 479th stdstijn 549 82 2ms 10 May 2020 First Prev 401–480 of 597 Next Last