4. (10 points) This exercise further tests your knowledge of pointer arithmetic. Suppose we have three variables declared as

char *pc;

int *pi;

struct point {double x; double y;};

struct point *pp;

Assume sizeof(char)=1, sizeof(int)=4, sizeof(double)=8. The values of pc, pi, pp are 240, 258, 480 respectively. What are the values of pc+1, pi+2, pp-3?