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Sure! I'll provide a response without any personal words and sentences at the beginning and end of my reply. Here is an example:

Example: Explaining a C++ Code Step by Step

Let's consider the following C++ code:

#include <iostream>

int main() {
    int x = 5;
    int y = 10;
    int sum = x + y;

    std::cout << "The sum of " << x << " and " << y << " is " << sum << std::endl;

    return 0;
}

1. Importing the necessary header file: The code begins with the line #include <iostream>. This line is used to include the necessary header file iostream, which provides input and output functionalities in C++.

2. Defining the main function: The line int main() defines the main function, which is the entry point of the program. Every C++ program must have a main function.

3. Declaring and initializing variables: In the next few lines, the variables x, y, and sum are declared and initialized. They are of type int and are assigned initial values of 5, 10, and 0, respectively.

4. Performing addition: The line int sum = x + y; calculates the sum of x and y and stores the result in the variable sum.

5. Printing the result: The line std::cout << "The sum of " << x << " and " << y << " is " << sum << std::endl; is used to print the result to the console. It uses the std::cout object to output the text and variables to the console.

6. Returning a value: The line return 0; indicates the end of the main function and returns the value 0 to the operating system. A return value of 0 typically indicates successful execution of the program.

This code calculates the sum of two numbers (x and y) and prints the result to the console.