( Compute factorials) Rewrite thefactorial function in Listing usingiterations.Listing Com...

( Compute factorials) Rewrite thefactorial function in Listing using

iterations.

Listing ComputeFactorial.cpp

1 #include
2 using namespace std;
3
4   // Return the factorial for a specified index
5   int factorial(int);
6
7 int main()
8 {
9   // Prompt the user to enter an integer
10  cout << "Please enter a non-negative integer: ” ;
11  int n;
12  cin >> n;
13
14   // Display factorial
15  cout <<"Factorial of " << n <<" is " << factorial(n);
16
17   return 0 ;
18 }
19
20 // Return the factorial for a specified index
21 int factorial(int n)
22 {
23   if (n == 0 ) // Base case
24   return 1 ;
25 else
26   return n * factorial(n - 1 ) ; // Recursive call
27 }