Data structure 26

Question 2 [20 marks] Stack (a) Write the postfix expression for the following infix expressions. [14 marks] (i) a*btc/d (i) atb c/d (ii) a/b-c+d*e (iv) (atb)dte/ (fta*d) +c (b) Explain the main idea how to evaluate a postfix expression using a stack, using an example [6 marks] with at least 3 operators