Draw a memory diagram for the program below.
For the lines that are numbered, you should draw a memory diagram. 
Under each diagram, make sure to mention if there is garbage or
if either pointer is a stale pointer.

#include <iostream>

struct Date {
 int month, day, year;
};

int main() {
  Date *anniv = NULL;
  Date *ball = NULL; //memory diagram #1
  anniv = new Date;
  ball = new Date; //memory diagram #2
  ball->month = 2; 
  ball->day = 25;
  ball->year = 2012;
  anniv = ball;  //memory diagram #3
  delete ball;
  ball = NULL; //memory diagram #4

}