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.

---

Definitions:

1 lb of Water

A measure of mass equivalent to approximately 453.6 grams, often used to reference the weight of water for various scientific and technical calculations.

Btu

British thermal unit, a unit of measure for energy; specifically, the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

Cold Material

A term that generally refers to material at a temperature significantly lower than the ambient or desired processing temperature.

Heat Exchanger

A device used to transfer heat between two or more fluids, gases, or solids of different temperatures without mixing them.