To compute the factorial of a positive integer including Zero

#include <stdio.h>

int main() 

{

int n, i, prod = 1;

 printf("ENTER A POSITIVE INTEGER: ");

 scanf("%d", &n);

if(n==0)

{ 

printf("Factorial of %d is %d",n, prod);

}

else

{

for (i = 1; i <= n; ++i) 

{

prod=prod*i;

 }

 printf("THE VALUE OF THE FACTORIAL OF %d IS %d",n,prod);

}

return 0;

}