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Live Input Output (Competitive Programming) setup in VS CODE for C/C++ (WINDOWS)

5hfT on May 22, 2020

How to install and setup vs code for competitive programming with c/c++ for Windows Users install vs code Download vs code ...

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Vijay • Sep 15 '20

Hey. Thanks for this nice guidelines. I'm getting below error. Can you please help ?

> Executing task:  cp d:\extra\cpp\hello.cpp D:\extra\cpp && g++ hello.cpp -o test.out && ./test.out < input.txt > output.txt && rm *out && rm hello.cpp <

cp: cannot stat 'd:extracpphello.cpp': No such file or directory
The terminal process "C:\Program Files\Git\bin\bash.exe '-c', ' cp d:\extra\cpp\hello.cpp D:\extra\cpp && g++ hello.cpp -o test.out && ./test.out < input.txt > output.txt && rm *out && rm hello.cpp'" failed to launch (exit code: 1).

Terminal will be reused by tasks, press any key to close it.

5hfT • Sep 15 '20

Recently i have added some changes for windows hope this will help. Please check this out

github.com/jspw/VS-Code-Config/iss...

Vijay • Sep 15 '20

Hmm. I moved the cpp file in there own folder as mentioned in the link. But still no luck :(

5hfT • Sep 15 '20

give me a ss of your base folder

Vijay • Sep 15 '20

attached

dev-to-uploads.s3.amazonaws.com/i/...

5hfT • Sep 15 '20 • Edited

did you change the task.json file try this as i have said that i make some edits.

Vijay • Sep 15 '20

I can see your last commit is 4 days ago. I'm using the recent one. Still not working. Do I need to use the older one ?

5hfT • Sep 15 '20

Note : Make sure your mouse cursor is clicked or focused on the cpp file editor while you are running your code or pressing control+shift+b

5hfT • Sep 15 '20

The error you are facing must be solved using the updated task.json file for windows.

Vijay • Sep 15 '20

I'm focusing the file while running it. Also I'm using the latest file.

dev-to-uploads.s3.amazonaws.com/i/...

Vijay • Sep 15 '20

With closer look on the error. I feel like git shell in not converting file path properly.

${file} -> d:\extra\cpp\cod\hello.cpp (I guess this one not converting well. Notice the directory name case)
${workspaceFolder} -> D:\extra\cpp (Correct one)

Vijay • Sep 15 '20 • Edited

I figured it out. Problem was same. Git shell was not recognizing the path. The path parameter should be in quotes. Below is the fix.

In args, make these changes.

"${file}" -> "'${file}'"
"${workspaceFolder}" -> "'${workspaceFolder}'"
"${fileBasename'" -> "'${fileBasename}'",

"args": [
        "cp",
        "'${file}'",
        "'${workspaceFolder}'",
        "&&",
        "g++",
        "'${fileBasename}'",
        "-o",
        "test.out",
        "&&",
        "./test.out",
        "<",
        "input.txt",
        ">",
        "output.txt",
        "&&",
        "rm",
        "*out",
        "&&",
        "rm",
        "'${fileBasename}'"
      ],

5hfT • Sep 16 '20

thats great if you have figured it out but i have tested my previous task.json file and it is working fine with other machines!
I think windows have some issues with file management system though its all working file in Linux.

akib35 • Dec 30 '20 • Edited

I had same problems too. After adding extra ( ' ' ) made it successful suggested by kikit.
Thanks.

5hfT • Dec 31 '20

Most welcome.

5hfT • Dec 31 '20

I will check it and will update the repo

Mahdi Hasan • Jun 28 '22 • Edited

this modification in task.json is working with git bash

"args": [
          "cp",
          "'${file}'",
          "'${workspaceFolder}\\${fileBasename}'",
          "&&",
          "fileName=\"${fileBasename}\"",
          "&&",
          "objectFile=\"${fileName%.*}.out\"",          
          "&&",
          "g++",
          "'${fileBasename}'",
          "-o",
          "${objectFile}",
          "&&",
          "./${objectFile}",
          "<",
          "input.txt",
          ">",
          "output.txt",
          "&&",
          "rm",
          "${objectFile}",
          "&&",
          "rm",
          "${fileBasename}",
        ]

soham04 • Jul 25 '20

Your .json file link is not working, I got my work stoped in between due to that !!!

5hfT • Jul 25 '20

Did you use this one ?

soham04 • Jul 25 '20

these tasks.json will be only valid for this folder and its subfolder only ?

5hfT • Jul 25 '20

not like that. Let me see you this

for different workspaces you have to make the tasks.json file once.

Comment deleted

5hfT • Jun 2 '20

What do u mean setup vim??

Eren Yaeger • Jun 26 '23

This is what I'm getting...

5hfT • Jul 16 '23

what is your default shell in this vscode space ?

Virajas Mane • Jun 11 '20

It is showing hello.cpp : No such file or directory
and also fatal error no input files
can you please help??

5hfT • Jun 11 '20

did you create input.txt in the same directory as the hello.cpp??

soham04 • Jul 25 '20

Will is save out code in github repo also ?

Amrita Kadam • May 31

Yes thank you so much I just learned that I did not create a folder in the base folder and then the file.cpp.
This worked.

Eren Yaeger • Jun 26 '23

Please someone help me out as this is not working in my vscode

saksham08jain • Oct 26 '22

I am getting this error,any help is greatly appreciated

Rooghz • Dec 30 '23

[
        "cp",
        "\"${file}\"",
        "${workspaceFolder}\\jspwTest.cpp",
        "&&",
        "g++",
        "${workspaceFolder}\\jspwTest.cpp",
        "-o",
        "${workspaceFolder}\\jspwTest",
        "&&",
        "${workspaceFolder}\\jspwTest",
        "<",
        "input.txt",
        ">",
        "output.txt",
        "&&",
        "rm",
        "${workspaceFolder}\\jspwTest.exe",
        "&&",
        "rm",
        "${workspaceFolder}\\jspwTest.cpp"
      ]

Try this it will work..You just have to mention where this 'jspwTest.exe/cpp' file will be present.