Trailing zero in factorial

Finding number of trailing zero in factorial-

#include <stdio.h>
int main()
{
	int n,total,deno;
        scanf("%d",&n);
		
	total=0;
	deno=5;
	while(deno<=n)
	{
		total+=n/deno;
		deno*=5;
	}
	printf("%d\n",total);

	return 0;
}