May/June 2026 Paper 33

2026 · 11 questions · 26 parts · 75 marks

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7(a)Compilation Stages Reverse Polish NotationMedium3 marks

Outline the process of using a stack to evaluate an expression written using Reverse Polish Notation (RPN).

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7(b)Compilation Stages Reverse Polish NotationMedium2 marks

Write the following infix expression in RPN.

((18 - 15 + 3) \times 5) /12

Answer

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7(c)Compilation Stages Reverse Polish NotationHard4 marks

The RPN expression

16 3 36 6 / 18 6 - +

is to be evaluated. Show the changing contents of the stack as the RPN expression is evaluated.

Draw with the mouse or a finger.