Data-Structures

Let p be a pointer as shown in the figure in a single linked list.

What do the following assignment statements achieve?

q: = p → next
p → next:= q → next
q → next:=(q → next) → next
(p → next) → next:= q

(b) Compute the postfix equivalent of the following Infix expression

  3 * log(x+1) - a/2