Answer from cs61c-ad (Maung Maung Aung 16764789) for Question 2
#include <iostream.h>
int main ( ) {
   int n = 27;
   setTo5 (&n);
   printf ("n = %d\n", n);
   return 0;
}

void setTo5 (int *x)
{
   *n = 5;
}