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Chapter 7 · Data Structure and AlgorithmPractice
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CONCEPT PRACTICE

Bidirectional list pointers

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2025 Autumn · Subject A · Q5

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Q5. The table below shows the data in a list structure that has bidirectional pointers. In this table, a new Employee G is to be inserted between Employee A and Employee K. Which of the following contains only the pointers (among a through f) whose values change after the insertion? Table Address EmployeeName NextPointer PreviousPointer 100 Employee A 300 0 200 Employee T 0 300 300 Employee K 200 100 Table after the addition Address EmployeeName NextPointer PreviousPointer 100 Employee A a b 200 Employee T c d 300 Employee K e f 400 Employee G x y

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Source: 2025A_FE-A_Questions.pdf, PDF page 5. ID: 2025A-A-Q005. Explanation written for this textbook.

Original question · Q5
Q5. The table below shows the data in a list structure that has bidirectional pointers. In this table, a new Employee G is to be inserted between Employee A and Employee K. Which of the following contains only the pointers (among a through f) whose values change after the insertion? Table Address EmployeeName NextPointer PreviousPointer 100 Employee A 300 0 200 Employee T 0 300 300 Employee K 200 100 Table after the addition Address EmployeeName NextPointer PreviousPointer 100 Employee A a b 200 Employee T c d 300 Employee K e f 400 Employee G x y

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