Debugger of Visual Studio Code do nothing

Question

First time use VSCode. I try to run the Debugger but nothing happen. No errors , no logs , nothing. I really need this , cause debug is so important for competitive programming which i am doing right now. So pleas help me.

My computer is x86.

c_cpp_properties.json :

{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "${workspaceFolder}"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "compilerPath": "C:\\MinGW\\bin\\g++.exe",
            "cStandard": "c11",
            "cppStandard": "c++20",
            "intelliSenseMode": "${default}"
        }
    ],
    "version": 4
}

launch.json :

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "(gdb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/a.exe",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": true,
            "MIMode": "gdb",
            "miDebuggerPath": "C:\\MinGW\\bin\\gdb.exe",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ]
        }
    ]
}

task.json

{
    "tasks": [
      {
        "type": "shell",
        "label": "g++.exe build active file",
        "command": "C:\\MinGW\\bin\\g++.exe",
        "args": [
          "-g",
          "${file}",
          "-o",
          "${fileDirname}\\${fileBasenameNoExtension}.exe"
        ],
        "options": {
          "cwd": "C:\\MinGW\\bin"
        }
      },
      {
        "type": "shell",
        "label": "g++ build & run active file",
        "command": "C:\\MinGW\\bin\\g++.exe",
        "args": [
          "${file}",
          "-o",
          "${fileDirname}\\${fileBasenameNoExtension}.exe"
        ],
        "options": {
          "cwd": "C:\\MinGW\\bin"
        }
      }
    ],
    "version": "2.0.0"
  }

main.cpp

#include <iostream>
using namespace std;
int main() {
    string message = "Hello World";
    cout << message << endl;
    return 0;
}