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Chapter 7 · Data Structure and AlgorithmPractice
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CONCEPT PRACTICE

Reverse Polish notation from post-order traversal

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2024 Autumn · Subject A · Q2

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What is the value of the postfix expression below? Here, A, B, C, and D are operands whose values are 4, 3, 5, and 6, respectively. Symbols “+”, “−”, “×”, and “÷” are arithmetic operators for addition, subtraction, multiplication, and division, respectively. A B 2 × + D B ÷ C × −

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Source: 2024A_FE-A_Questions.pdf, PDF page 4. ID: 2024A-A-Q002. Explanation written for this textbook.

Original question · Q2
What is the value of the postfix expression below? Here, A, B, C, and D are operands whose values are 4, 3, 5, and 6, respectively. Symbols “+”, “−”, “×”, and “÷” are arithmetic operators for addition, subtraction, multiplication, and division, respectively. A B 2 × + D B ÷ C × −

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