Answer:
Explanation:
Recursive:
C++ program to find factorial of given number
#include <iostream>
using namespace std;
unsigned int factorial(unsigned int n)
{
if (n == 0)
return 1;
return n * factorial(n - 1);
}
// Driver code
int main()
{
int num = 5;
cout << "Factorial of "
<< num << " is " << factorial(num) << endl;
return 0;
Iterative:
// C++ program for factorial of a number
#include <iostream>
using namespace std;
unsigned int factorial(unsigned int n)
{
int res = 1, i;
for (i = 2; i <= n; i++)
res *= i;
return res;
}
// Driver code
int main()
{
int num = 5;
cout << "Factorial of "
<< num << " is "
<< factorial(num) << endl;
return 0;
}
