Happy Numbers 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 1st saito-ta 🇯🇵 1,000 75 6ms 22 Jun 2022 1st Lydxn 🇨🇦 1,000 75 6ms 13 May 2023 1st rhdqor213 1,000 75 2ms 29 Jul 2024 4th JayXon 🇺🇸 987 76 8ms 26 Nov 2021 4th KasperKivimaeki 🇫🇮 987 76 17ms 4 Feb 2025 6th sisyphus-ppcg 🇦🇺 974 77 2ms 3 Jul 2021 7th nwellnhof 🇩🇪 962 78 2ms 7 Jan 2021 7th Alex-x90 🇺🇸 962 78 2ms 27 Jan 2023 7th inventshah 962 78 2ms 27 Jan 2023 7th Steffan153 🇫🇮 962 78 2ms 28 Jan 2023 7th sean-niemann 🇺🇸 962 78 2ms 7 Mar 2025 12th lynn 949 79 2ms 2 Oct 2021 12th MeWhenI 🇻🇦 949 79 2ms 21 Jun 2022 12th m-tkach 🇺🇦 949 79 2ms 9 Mar 2023 12th ovs-code 🇩🇪 949 79 2ms 24 Mar 2024 12th xsot 🇸🇬 949 79 2ms 23 May 2024 12th DialFrost 🇸🇬 949 79 14ms 17 Dec 2024 18th prplz 🇦🇺 938 80 2ms 20 Oct 2020 18th primo-ppcg 🇹🇭 938 80 2ms 21 Oct 2020 18th emgordon154 938 80 2ms 22 Dec 2021 18th GrayJoKing 🇦🇺 938 80 2ms 13 Mar 2022 18th jared-hughes 938 80 2ms 30 Mar 2022 18th janbehrens 🇩🇪 938 80 2ms 26 Nov 2023 18th Herbert00709 🇵🇱 938 80 2ms 8 Jun 2024 18th roupiq 🇵🇱 938 80 2ms 9 Jun 2024 26th Attero 🇸🇪 926 81 2ms 4 May 2020 26th c0d3-4-F00d 🇩🇪 926 81 2ms 5 Jan 2022 26th snoozingnewt 🇺🇸 926 81 2ms 13 Sep 2025 26th AZTECCO 926 81 2ms 16 Sep 2025 26th Yax42 🇫🇷 926 81 2ms 9 days ago 31st AdrienHache 🇫🇷 915 82 2ms 7 Jan 2024 31st pardouin 🇫🇷 915 82 2ms 8 Oct 2024 31st LostSyntax21 🇬🇧 915 82 2ms 8 Jan 2025 31st TeodorDyakov 🇧🇬 915 82 2ms 5 Mar 2025 35th NewDefectus 🇮🇱 893 84 2ms 16 Dec 2021 36th annaproxy 882 85 2ms 18 May 2023 37th djeedjay 🇳🇱 872 86 2ms 26 Oct 2020 37th Yewzir 🇧🇪 872 86 2ms 22 Dec 2023 39th AaronGarbut 862 87 2ms 30 Jul 2019 40th ListeriaM 852 88 2ms 25 Aug 2023 40th Jonatan6 🇩🇰 852 88 2ms 27 Apr 2024 42nd marcin7Cd 833 90 2ms 17 May 2020 42nd dokutan 833 90 2ms 1 May 2024 44th Irratix 🇳🇱 824 91 2ms 19 Dec 2021 45th elgan65536 806 93 2ms 28 Nov 2023 45th Bmrl7 806 93 2ms 29 Feb 2024 47th boxjelly 798 94 2ms 15 Feb 2021 47th Shanethegamer 🇺🇸 798 94 2ms 18 Dec 2022 47th KenanHanke 798 94 2ms 22 Feb 2023 47th AlephSquirrel 798 94 2ms 8 Jun 2023 51st filharmonista 765 98 2ms 13 Mar 2020 52nd Babafaba 758 99 2ms 9 days ago 53rd madex 🇩🇪 750 100 2ms 22 Aug 2021 53rd LorenzoDeGaspari 750 100 2ms 20 Jun 2022 55th YellowBunnyGit 743 101 2ms 5 Apr 2019 55th JohandeRuiter 🇳🇱 743 101 2ms 28 Nov 2023 57th Re-Adventures 🇮🇳 735 102 2ms 20 Apr 2021 57th jupj 🇫🇮 735 102 2ms 15 Oct 2022 59th CatsAreFluffy 728 103 2ms 15 Jan 2023 60th pkasting 714 105 2ms 5 Sep 2020 61st Natanaelel 🇸🇪 708 106 2ms 31 Mar 2022 61st CaedenHarper 🇨🇦 708 106 2ms 24 Jan 2025 63rd retrohun 701 107 2ms 15 Mar 2019 63rd not-a-pokemon 701 107 2ms 11 Apr 2025 65th pandapawskat 688 109 2ms 13 Sep 2021 66th Indivicivet 676 111 2ms 15 Mar 2021 66th trist224 🇫🇷 676 111 4ms 15 Nov 2022 68th AkashTandon167 664 113 2ms 10 Oct 2019 68th Spruill-1 664 113 2ms 11 Sep 2021 70th jiaminglimjm 🇲🇾 658 114 2ms 12 Dec 2019 71st Alesun 🇮🇹 652 115 2ms 15 Oct 2019 71st cmayer777 652 115 2ms 12 Nov 2022 73rd jngbsn 641 117 2ms 2 Mar 2019 74th rambox11 625 120 2ms 12 Mar 2019 74th aubergine-sauce 625 120 2ms 20 Sep 2023 1–75 of 115 Next Last
