How to Write a function factorial in C++ and java and php 2011

[Xpert]

"Write a function factorial, which calculates the factorial of an integer. "
#include <iostream>
using namespace std;

int factorial (int x);

int main ()
{

int n;
cout<<"Enter number: ";
cin>>n;

int fact;

fact = factorial(n);

cout<<"The factorial of number: "<<n<<" is: "<<fact<<endl;

cin.get(); cin.get();
return 0;
}

int factorial(int x)
{

int i;
int F=1;

for (i = 1; i <= x; i++)
F*=i;

return F;
}

[dawoodasad17]

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