What is Function in C++?

              
1234567891011121314151617
            
#include <iostream>

// Function to calculate the factorial of an integer
int calculateFactorial(int n)
{
    int factorial = 1;
    for (int i = 1; i <= n; i++)
        factorial *= i;
    return factorial;
}

int main()
{
    // Call the calculateFactorial function and print the result
    std::cout << calculateFactorial(5) << std::endl;
    std::cout << calculateFactorial(8) << std::endl;
}