Convert a flowchart to .C++ program. Explained step by step with example.

Converting a flowchart to a C++ program involves translating the logic and control flow of the flowchart into C++ code. Here is an example of how this can be done:

Start with the flowchart and identify the different shapes used in the flowchart. Each shape represents a specific type of operation or decision. 

• Begin writing the C++ code by creating a main() function. This is where the program starts executing.
• For each rectangle shape in the flowchart, write a C++ statement that performs the operation represented by the rectangle. For example, if the rectangle represents a calculation, write the calculation in C++ code.
• For each diamond shape in the flowchart, write a C++ if or switch statement that tests the condition represented by the diamond. Then, write the statements that correspond to the different outcomes of the condition.
• For each oval shape in the flowchart, write a C++ return statement that ends the execution of the program.
• Finally, connect all the C++ statements together in the same order as the flowchart.

Here is an example of a simple flowchart that calculates the factorial of a number:

Here is how you would convert the flowchart above to C++:

#include <iostream>

using namespace std;

int main()

{

    int n, i=1, fact=1;

    cout << \"Enter a number: \";

    cin >>n;

    while (i <= n) {

        fact = fact * i;

        i = i + 1;

    }

    cout << "Factorial of " << n << " is: " << fact;

    return 0;

}

It's important to note that this is a simple example and in most cases the flowchart will be more complex, and the C++ program will be more complex as well.