Answer from cs61c-eu (Tian Ming Ouyang 16017341) for Question 1
#include <stdio.h>

int main () {
      int *intptr; /* declare intptr to be pointer */
      int n; /* declare n to be an int */
      intptr = &n; /* give intptr the address of n */
      n = 5; /* give n the value 5 */

      /* check to see if intptr points to n, which is 5 */
      printf("%d%d\n", n, *intptr);
}