//OPTION #1
int d = 1;
int temp = n;			//ADD A LINE OF CODE HERE
while (temp > 9)                
{				
	temp = temp / 10;     
	d++;	
}             

//OPTION #2
  int d = 1;
  int temp = n;
while (temp > 9)                //MODIFY THIS
{
	temp = n/d / 10;       // EITHER N OR D?
	d++;
}