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VS-Code-for-CP

For competitive programming, I use Linux dual booted alongside Windows. My favorite IDE is VS Code and it's perfect for short codes in CP.


Tutorial Video


  1. Install C++
sudo apt install g++
  1. Instal VS Code
wget -qO- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > packages.microsoft.gpg
sudo install -o root -g root -m 644 packages.microsoft.gpg /etc/apt/trusted.gpg.d/
sudo sh -c 'echo "deb [arch=amd64,arm64,armhf signed-by=/etc/apt/trusted.gpg.d/packages.microsoft.gpg] https://packages.microsoft.com/repos/code stable main" > /etc/apt/sources.list.d/vscode.list'
rm -f packages.microsoft.gpg

sudo apt install apt-transport-https
sudo apt update
sudo apt install code
  1. Install C++ on VS CODE
  • Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
ext install ms-vscode.cpptools-extension-pack
  1. Install C/C++ Compile Run
  • Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
ext install danielpinto8zz6.c-cpp-compile-run
  1. Install Code Runner on VS CODE
  • Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
ext install formulahendry.code-runner
  1. Change Settings of Code Runner
  • Open Settings in vscode (ctrl + comma)
  • Search on Run Code Configuration
    • on Clear Previous Output
    • on Run In Terminal
    • on Save All Files Before Run
  • Don't Close Settings because we will use it in the next step
  1. Change Executor Map of Code Runner
  • Click on Edit in settings json at Executor Map By File Extension
  • at code-runner.executorMap edit in cpp label
  • choose one flag from these and put it in cpp label:
    • this command for execute the file with cp flags and make the code terminate after one second
      • "cd $dir && g++ -std=c++2a -Wshadow -Wall -o -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG $fileName -o $fileNameWithoutExt && timeout -k 0 1s $dir$fileNameWithoutExt"
    • this command for execute the file with cp flags only
      • "cd $dir && g++ -std=c++2a -Wshadow -Wall -o -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
    • this command for execute the file with cp flags but less debuger than the above one
      • "cd $dir && g++ -std=c++2a -Wshadow -Wall -o "%e" "%f" -O2 -Wno-unused-result $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
    • this flag for Windows
      • "cd $dir && g++ $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
    • this command for input and output from files with flags
      • "cd $dir && g++ -std=c++2a -Wshadow -Wall -o -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG $fileName -o $fileNameWithoutExt && timeout -k 0 1s $dir$fileNameWithoutExt < input.txt > output.txt && rm $dir$fileNameWithoutExt"
    • this command for input and output from files without flags
      • "cd $dir && g++ -std=c++2a $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt < input.txt > output.txt && rm $dir$fileNameWithoutExt"
  1. Use Files instead of terminal
  • We will use freopen and files txt to take input and output from use instead of terminal
  • First we should put this function in our code
void Fast_IO(){
    ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
    #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout); 
    #endif
}
  • Create text file and name it input.txt
  1. Split Screen to make the view better for you
  • The image in below will show you the view after splitting it.
    • Screenshot from 2022-02-05 21-00-34

Enjoy now with you CP Enviroment




Optional things to do

Install Atom One Dark Theme

  • Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
ext install akamud.vscode-theme-onedark

Install Bracket Pair Colorizer

  • Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
ext install CoenraadS.bracket-pair-colorizer

Install Easy icon theme

  • Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
ext install jamesmaj.easy-icons

Make Your Snippet

  • You can go to this site and make a snippet for you

  • After that you can copy the snippet and insert it in your vscode to call it in anytime




You can use my template for competitve programming with cpp from here




You can make two run commands with shortcut

  • Run with flags
  • Run without flags
- Go to keyboard Shortcuts or `Ctrl + k + s`
- search on code-runner
- make shortcut for `code-runner.run` for Run with flags
- make shortcut for `code-runner.runCustomCommand` for Run without flags

This is settings.json file if you want to add it's content to your settings.json file

{
    "code-runner.executorMap": {
        "javascript": "node",
        "java": "cd $dir && javac $fileName && java $fileNameWithoutExt",
        "c": "cd $dir && gcc $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "cpp": "cd $dir && g++ -std=c++2a -Wshadow -Wall -o -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG $fileName -o $fileNameWithoutExt && timeout -k 0 1s $dir$fileNameWithoutExt < input.txt > output.txt && rm $dir$fileNameWithoutExt",
        "objective-c": "cd $dir && gcc -framework Cocoa $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "php": "php",
        "python": "python3 -u",
        "perl": "perl",
        "perl6": "perl6",
        "ruby": "ruby",
        "go": "go run",
        "lua": "lua",
        "groovy": "groovy",
        "powershell": "powershell -ExecutionPolicy ByPass -File",
        "bat": "cmd /c",
        "shellscript": "bash",
        "fsharp": "fsi",
        "csharp": "scriptcs",
        "vbscript": "cscript //Nologo",
        "typescript": "ts-node",
        "coffeescript": "coffee",
        "scala": "scala",
        "swift": "swift",
        "julia": "julia",
        "crystal": "crystal",
        "ocaml": "ocaml",
        "r": "Rscript",
        "applescript": "osascript",
        "clojure": "lein exec",
        "haxe": "haxe --cwd $dirWithoutTrailingSlash --run $fileNameWithoutExt",
        "rust": "cd $dir && rustc $fileName && $dir$fileNameWithoutExt",
        "racket": "racket",
        "scheme": "csi -script",
        "ahk": "autohotkey",
        "autoit": "autoit3",
        "dart": "dart",
        "pascal": "cd $dir && fpc $fileName && $dir$fileNameWithoutExt",
        "d": "cd $dir && dmd $fileName && $dir$fileNameWithoutExt",
        "haskell": "runhaskell",
        "nim": "nim compile --verbosity:0 --hints:off --run",
        "lisp": "sbcl --script",
        "kit": "kitc --run",
        "v": "v run",
        "sass": "sass --style expanded",
        "scss": "scss --style expanded",
        "less": "cd $dir && lessc $fileName $fileNameWithoutExt.css",
        "FortranFreeForm": "cd $dir && gfortran $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "fortran-modern": "cd $dir && gfortran $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "fortran_fixed-form": "cd $dir && gfortran $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "fortran": "cd $dir && gfortran $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
    },
    "C_Cpp.default.cppStandard": "c++23",
    "C_Cpp.default.compileCommands": "g++ -std=c++2a -Wshadow -Wall -o \"%e\" \"%f\" -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG",
    "c-cpp-compile-run.cpp-flags": "-std=c++2a -Wshadow -Wall -o -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG",
    "settingsSync.ignoredSettings": [
        "-C_Cpp.default.compileCommands"
    ],
    "code-runner.customCommand": "cd $dir && g++ -std=c++2a $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt < input.txt > output.txt && rm $dir$fileNameWithoutExt",
    "[plaintext]": {
        "editor.defaultFormatter": "GlenBuktenica.unicode-substitutions"
    }
}