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 *p1; struct point *p2[10]; Assume sizeof(char)=1, sizeof(int)=4, sizeof(double)=8. The values of pc, pi, p1 and p2 are 240, 258, 310 and 480 respectively. What are the values of pc+1, pi+2, p1+4 (12 points) and p2+3 (4 points extra credit)?