Welcome to C++ Programming Tutorial

#include <iostream>   // Include the input-output stream library
using namespace std;    // Use the standard namespace

int main() {            // Define the main function, which is the entry point of the program
    cout << "Hello, World!" << endl;  // Output "Hello, World!" followed by a newline
    return 0;           // Return 0 to indicate successful execution
}                       // End of the main function

#include <iostream>
Includes the input-output stream library for functions like `cout` and `cin`.

using namespace std;
Allows the use of standard library objects like `cout` without the `std::` prefix.

int main()
Defines the main function, the starting point of a C++ program. Returns an integer to the operating system.

cout << "Hello, World!" << endl;
Outputs "Hello, World!" to the screen followed by a newline.

return 0;
Ends the main function, returning 0 to indicate successful execution.

}
Closes the main function.