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Reverse Polish Notation in all languages 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi 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 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 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 526th stefangimmillaro 714 256 45ms 3 Jan 2023 527th Alex-x90 🇺🇸 713 196 376ms 24 Oct 2025 528th JGDoerrer 713 262 199ms 29 Jun 2022 529th daniel-pedersen 🇸🇪 712 103 9ms 6 Mar 2022 529th Heathcorp 🇦🇺 712 103 10ms 27 Apr 2022 529th FortuiteMan 🇫🇷 712 103 9ms 10 Oct 2024 529th SiBeepBoop 712 103 9ms 15 Apr 2025 533rd stefangimmillaro 712 192 365ms 10 Oct 2023 534th albanian-laundromat 712 349 404ms 23 days ago 535th JayXon 🇺🇸 711 56 38ms 23 Feb 2025 535th pardouin 🇫🇷 711 56 80ms 12 Sep 2025 537th kg583 🇺🇸 711 145 6ms 9 Jun 2025 538th Shanethegamer 🇺🇸 710 138 2ms 12 Feb 2022 539th JohandeRuiter 🇳🇱 710 164 2ms 11 Feb 2025 540th weeble 709 138 6ms 18 Aug 2024 541st albanian-laundromat 706 103 1,986ms 25 Oct 2025 542nd prplz 🇦🇺 706 165 2ms 14 Feb 2022 542nd Szum123321 🇵🇱 706 165 2ms 29 Nov 2023 544th CaedenHarper 🇨🇦 706 259 272ms 9 days ago 545th janbehrens 🇩🇪 705 104 10ms 14 Apr 2023 545th m-tkach 🇺🇦 705 104 9ms 3 Jan 2025 545th dokutan 705 104 9ms 15 Jun 2025 548th edsrzf 🇳🇿 705 184 1,377ms 29 Apr 2025 549th AlephSquirrel 702 37 4ms 3 Aug 2023 550th GrayJoKing 🇦🇺 702 60 1,012ms 8 May 2022 551st Alex-x90 🇺🇸 701 166 2ms 8 Feb 2023 552nd stefangimmillaro 699 57 40ms 18 Feb 2022 552nd tatzyr 🇯🇵 699 57 52ms 26 Feb 2025 554th JunkIce 699 95 466ms 3 Dec 2024 555th stefangimmillaro 698 193 3,495ms 12 Nov 2024 556th stefangimmillaro 698 262 264ms 5 May 2025 556th edsrzf 🇳🇿 698 262 267ms 10 Jun 2025 558th Mandrzejy 🇵🇱 697 167 2ms 3 Nov 2024 559th Sp3000 🇦🇺 693 41 4ms 19 Jan 2024 559th MeWhenI 🇻🇦 693 41 6ms 2 Mar 2025 561st ian-h-chamberlain 🇺🇸 692 270 193ms 16 days ago 562nd lifthrasiir 🇰🇷 691 50 2ms 28 Nov 2024 563rd KatieLG 🇬🇧 691 96 492ms 28 Oct 2024 564th KingSkyrock 🇺🇸 691 106 10ms 17 Mar 2022 565th emgordon154 689 118 1,078ms 3 Dec 2024 566th CaedenHarper 🇨🇦 689 231 363ms 5 Oct 2025 567th Ripick 688 186 342ms 24 Jun 2025 568th Shanethegamer 🇺🇸 686 58 38ms 13 Feb 2022 568th SirBogman 🇺🇸 686 58 59ms 10 Jan 2024 570th MathisBullinger 685 107 10ms 11 May 2022 570th CaedenHarper 🇨🇦 685 107 9ms 23 Aug 2025 572nd edsrzf 🇳🇿 684 38 4ms 14 Oct 2025 573rd nwellnhof 🇩🇪 683 110 201ms 24 May 2022 573rd AlephSquirrel 683 110 202ms 29 May 2023 573rd 5cw 🇺🇸 683 110 208ms 9 May 2024 573rd Seek64 🇩🇪 683 110 259ms 13 Sep 2024 577th iakolzin 682 205 55ms 1 Jul 2022 578th revlayle 🇺🇸 680 201 327ms 9 Dec 2022 579th CatsAreFluffy 679 206 58ms 24 Feb 2023 580th janbehrens 🇩🇪 678 199 491ms 26 Mar 2022 581st roavin 677 202 325ms 30 Jun 2022 582nd shinh 675 59 39ms 21 Jun 2022 583rd 386asm 🇺🇸 675 222 51ms 5 May 2023 584th edsrzf 🇳🇿 673 124 4ms 6 Oct 2025 585th Mikey-Beep 🇬🇧 673 203 331ms 2 Sep 2024 585th tomh1012 673 203 337ms 5 Sep 2025 587th randolchance 672 109 9ms 4 Jan 2024 588th MeWhenI 🇻🇦 671 112 232ms 22 May 2024 589th MeWhenI 🇻🇦 670 146 8ms 13 Aug 2024 590th prestosilver 🇺🇸 669 174 1ms 11 days ago 591st Natanaelel 🇸🇪 668 86 37ms 29 Jan 2024 592nd janbehrens 🇩🇪 667 6 68ms 25 Nov 2022 593rd alemelis 666 101 710ms 26 Aug 2024 594th Shanethegamer 🇺🇸 665 61 6ms 13 Feb 2022 595th xnor-gate 665 113 38ms 14 Feb 2022 596th Garklein 🇨🇦 664 52 2ms 13 Feb 2022 596th Natanaelel 🇸🇪 664 52 2ms 14 Jul 2023 596th SirBogman 🇺🇸 664 52 3ms 6 Nov 2023 599th janbehrens 🇩🇪 663 206 331ms 26 Feb 2022 600th oeb25 663 282 206ms 16 May 2022 First Prev 526–600 of 1,139 Next Last