C++ Factorial of A Number

#include<iostream>
using namespace std;
int main()
{
    int x, i, t =  1;

    cout << "Enter A Number : ";
    cin >> x;
    cout << endl;

    for(i=1;i<=x;i++)
    {
        t = t * i;
    }

    cout << x << "! = " << t << endl;

    return 0;
}