Happy Numbers in Java 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 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 Dragon Curve 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 Dragon Curve 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 Chars Time Submitted 1st sean-niemann 🇺🇸 1,000 70 640ms 24 Sep 2025 1st JayXon 🇺🇸 1,000 70 653ms 24 Sep 2025 1st namelessiw 1,000 70 514ms 4 Oct 2025 1st MeWhenI 🇻🇦 1,000 70 551ms 7 Nov 2025 1st Lydxn 🇨🇦 1,000 70 480ms 12 Dec 2025 1st Steffan153 🇫🇮 1,000 70 531ms 11 Feb 2026 7th nwellnhof 🇩🇪 886 79 446ms 25 Sep 2025 7th stefangimmillaro 886 79 512ms 6 Oct 2025 7th DialFrost 🇸🇬 886 79 556ms 14 Nov 2025 7th h3ra993huskp 🇯🇵 886 79 516ms 30 Nov 2025 7th ScottHamper 886 79 448ms 30 Nov 2025 7th edsrzf 🇳🇿 886 79 440ms 25 Dec 2025 13th dokutan 814 86 430ms 13 Mar 2026 14th Yewzir 🇧🇪 795 88 490ms 2 Oct 2025 15th Jacob385 787 89 421ms 27 Oct 2025 16th Yax42 🇫🇷 761 92 484ms 12 Nov 2025 17th jared-hughes 745 94 492ms 24 Sep 2025 18th snoozingnewt 🇨🇦 737 95 497ms 29 Nov 2025 19th primo-ppcg 🇹🇭 654 107 391ms 24 Apr 2020 19th prplz 🇦🇺 654 107 434ms 7 Jul 2020 21st Shanethegamer 🇺🇸 636 110 501ms 25 Sep 2025 22nd kmathis22 631 111 472ms 20 Nov 2025 22nd ethanlally 631 111 435ms 23 Nov 2025 22nd KasperKivimaeki 🇫🇮 631 111 566ms 30 Nov 2025 25th xkacer 🇨🇿 593 118 483ms 20 Nov 2020 25th CaedenHarper 🇨🇦 593 118 522ms 3 Oct 2025 27th Apataras 579 121 448ms 25 Jul 2025 28th Babafaba 574 122 644ms 14 Oct 2025 29th janbehrens 🇩🇪 560 125 414ms 20 Jun 2023 30th JunkIce 547 128 496ms 23 Feb 2025 30th Schmitt-Very-Cool 547 128 465ms 30 Sep 2025 32nd ravnskjaer 🇩🇰 515 136 510ms 15 Dec 2025 33rd HumanoidCPU 511 137 722ms 8 Nov 2025 34th inventshah 479 146 417ms 17 Jun 2022 34th jusaka 479 146 452ms 15 days ago 36th Irratix 🇳🇱 476 147 433ms 11 Dec 2021 37th neihousaigaai 461 152 382ms 8 May 2021 38th boxjelly 458 153 415ms 17 Feb 2021 39th KatieLG 🇬🇧 455 154 426ms 24 Sep 2025 40th Liibe 449 156 475ms 25 Sep 2025 41st Re-Adventures 🇮🇳 446 157 400ms 8 Mar 2021 42nd cbrt-x 432 162 422ms 1 Sep 2021 43rd Natanaelel 🇸🇪 424 165 445ms 31 Mar 2022 44th baumpilz 409 171 415ms 17 Dec 2020 45th KatieLG-Transpiler 🇬🇧 395 177 378ms 23 Jun 2022 46th xbxbxb007 393 178 383ms 11 Jan 2024 47th melikebuyruk 389 180 412ms 22 Mar 2021 47th yoshykai 389 180 416ms 15 Apr 2025 49th msbranicky 374 187 418ms 9 Jan 2024 50th yashima 372 188 494ms 21 Oct 2024 51st bac0id 365 192 392ms 30 Jun 2024 52nd benradclyffe 361 194 437ms 15 May 2023 53rd sonisonjames 355 197 398ms 11 Dec 2022 54th mokymok 🇺🇸 350 200 418ms 9 Nov 2021 54th syspro86 350 200 537ms 31 Jul 2024 56th luca1339 338 207 409ms 9 May 2024 57th jiaminglimjm 🇲🇾 337 208 391ms 4 Jul 2020 58th retrohun 333 210 435ms 27 Dec 2022 58th Mabeloid 🇳🇴 333 210 412ms 20 Sep 2024 60th jonah1068 327 214 417ms 15 Sep 2023 61st zt14427 326 215 375ms 2 May 2023 62nd bwat2 293 239 435ms 10 Mar 2022 63rd oeL87 251 279 449ms 29 Apr 2024 64th DaCuteRaccoon 217 322 463ms 30 Nov 2022 65th theunofficialcoder 216 324 448ms 21 Jan 2024 66th Grimmjow91 203 344 433ms 3 Jun 2020 67th gianlab 190 369 434ms 30 Apr 2020 68th arvindrajarajan08 157 447 383ms 28 Aug 2025 69th tejokumar 141 496 450ms 22 Jan 2022 70th oganaa 125 559 420ms 6 Feb 2023 71st PierceZ 86 818 416ms 29 Nov 2023 1–71 of 71