vscode configures remote C++ environment

1. Check gcc --version and gdb --version

2. Open VSCode and make sure the C/C++ extension is installed

3. Click on the cpp file,
press the Ctrl + Shift + B key combination, and select the default build task (Build Task).

After building, produce the executable file and

enter the ./helloworld command in the terminal to run the program. You will see the output as Hello, World!