Doubly Linked Lists Quiz
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Questions and Answers

What causes a position to become invalid in a positional list?

  • Explicit deletion command (correct)
  • Positional method invocation
  • Changes in other parts of the list
  • Adding a new element

What type of object is a position instance as described in the text?

  • Complex object with various methods
  • Abstract object with no methods
  • Simple object with limited method support (correct)
  • Dynamic object with unpredictable behavior

How is a positional list most naturally implemented according to the text?

  • Using a doubly-linked list (correct)
  • Using a circular linked list
  • Using a singly-linked list
  • Using an array

In a positional list, what operation involves inserting a new node between a position and its successor?

<p>Insertion (D)</p> Signup and view all the answers

In a doubly linked list, each node typically stores which of the following?

<p>Element, link to the previous node, link to the next node (B)</p> Signup and view all the answers

When inserting a new node between two nodes in a doubly linked list, what is typically updated?

<p>The pointers of the previous and next nodes (A)</p> Signup and view all the answers

What operation is performed to remove a node from a doubly linked list?

<p>Deletion (A)</p> Signup and view all the answers

Which data structure allows traversal forward and backward?

<p>Doubly Linked List (C)</p> Signup and view all the answers

What is the main purpose of comparing the incremental strategy and the doubling strategy?

<p>To analyze the total time needed to perform a series of push operations (D)</p> Signup and view all the answers

What does the doubling strategy involve?

<p>Doubling the size of an array (A)</p> Signup and view all the answers

How is the total time calculated in the incremental strategy analysis?

<p>$n + ck(k + 1)/2$ (A)</p> Signup and view all the answers

What happens to the array in the doubling strategy analysis?

<p>It is doubled log2 times (D)</p> Signup and view all the answers

What is the amortized time of a push operation in the incremental strategy?

<p>$O(n)$ (D)</p> Signup and view all the answers

How does the total time scale with respect to 'n' in the doubling strategy?

<p>$O(n)$ (C)</p> Signup and view all the answers

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