[ c++] factorial anynumber By me
Code:#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
int factorial(int a)
{
int c=a;
for (int n=a-1; n>=1; n--)
{
c*=n;
}
return c;
}
int main()
{
int Fac,r;
cout<< " factorial of ";
cin>>Fac;
r=factorial(Fac);
cout<<r;
cout <<endl;
system("pause");
return 0;
}