How use debugging in VS Code - c++

Question

I am getting error after running debugger like
c:\Users\USER.vscode\extensions\ms-vscode.cpptools-1.7.1\debugAdapters\bin\WindowsDebugLauncher.exe' '--stdin=Microsoft-MIEngine-In-vomttuky.aw4' '--stdout=Microsoft-MIEngine-Out-5gcky3n5.jua' '--stderr=Microsoft-MIEngine-Error-1xr5gc00.po0' '--pid=Microsoft-MIEngine-Pid-w3xqmfyg.lmp' '--dbgExe=C:/MinGW/bin/gdb.exe' '--interpreter=mi'
whenever i try to debug simple cpp file
Hello.cpp -
#include <bits/stdc++.h>
using namespace std;
int sqr(int a){
return a*a;
}
int main (){
int a =10;
int b =2;
int c =a*b;
cout << sqr(c);
return 0;
}
I have configured my launch.json file like this -
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "(gdb) Launch",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceFolder}/a.exe",
"args": [],
"stopAtEntry": false,
"cwd": "${fileDirname}",
"environment": [],
"externalConsole": false,
"MIMode": "gdb",
"miDebuggerPath": "C:/MinGW/bin/gdb.exe",
"logging": { "engineLogging": true },
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
]
},
{
"name": "(Windows) Launch",
"type": "cppvsdbg",
"request": "launch",
"program": "enter program name, for example ${workspaceFolder}/a.exe",
"args": [],
"stopAtEntry": false,
"cwd": "${fileDirname}",
"environment": [],
"console": "externalTerminal"
}
]
}
i am using
VSCode - 1.61.2
MiGW - 6.3.0