When Using the Textbook's Implementation of a Singly Linked List

question 41

Multiple Choice

When using the textbook's implementation of a singly linked list to remove an element in the middle of the list, why it is necessary to check whether the previous reference equals the position reference?

• A)If previous equals position, the action does not follow a call to next.
• B)If previous equals position and an attempt is made to remove the node, the iterator would have to start at the beginning of the list to rebuild the links.
• C)If previous equals position, the iterator is at the beginning of the list and does not point to a valid node.
• D)If previous equals position, the iterator is at the end of the list and does not point to a valid node.

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Definitions:

David Hammons

An influential African American artist whose work explores themes of race, class, and society through a variety of mediums including sculpture, installation, and performance.

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Bias, unfair treatment, or hostility towards an individual from a different racial background, stemming from the conviction that one's own race is superior.

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Leon Golub

An American painter known for his large-scale, politically charged paintings that address themes of power, violence, and social injustice.