Linked List Operations That Were Studied Included Adding/removing an Element

question 46

Multiple Choice

Linked list operations that were studied included adding/removing an element at the end or in the middle, and retrieving the kth element. If the iterator is currently pointing to the correct location for insertion or removal, which of the following statements about these doubly-linked list operations is correct?

• A) The least expensive operation of a doubly-linked list is to add an element at the end.
• B) The least expensive operation of a doubly-linked list is to retrieve an arbitrary element.
• C) The least expensive operation of a doubly-linked list is to add an element in the middle.
• D) All of these operations have the same time cost.

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Definitions:

Opportunity Cost

Letting go of feasible gains from other options by making a particular choice.

Tattoo

A form of body modification where a design is made by inserting ink, dyes, and pigments, either indelible or temporary, into the dermis layer of the skin.

Avatar

A graphical representation of a user or the user's character or persona.

Comparative Advantage

The faculty of a person, a company, or a country to yield a good or service at a lower expense of foregone opportunities than those faced by its competitors.