Write a program that uses array to calculate the factorial of a reasonable large number (say, up to 2,000).

//As we take large number its factorial comes to be a very large number
//which can't be stored even in long int. Array is used to store the
//factorial of large numbers. The multiplication of digits to find
//factorial is done from right most to left most.
#include
using namespace std;
#define max 20000 //maximum range till which program will find the factorial
int fact(int x, int...