Answer from cs61c-ej (Leon Wang 16247444) for Question 2
#include 
int main ( ) {
    int n = 27;
    setTo5 (&n);
    printf ("n = %d\n", n);  /* should print n = 5 */
    return 0;
}

void setTo5(int *p) {
    *p = 5;
}