Exercise 5 C programming

temp = *p; *q = temp ; 4. Rewrite the make_empty,is_empty, and is_full functions of Section 10.2 to use the pointer variable top_ ptr instead of the integer variable top. Suppose that a is a one-dimensional array and p is a pointer variable. Assuming that the assignment p = a has ju 5. st been performed, which of the following expressions are illegal cause of mismatched types? Of the remaining expressions, which are true (have a nonzero value)? (a) p-a [0] (b) p &a [0] (c) *p == a[0] (d) p [0] == a[0] 6. Rewrite the following function to use pointer arithmetic instead of other words, eliminate the variable i and all uses of the [] operator.) as possible