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:

Cost of Equity

The return that investors require or expect to earn on their investment in a company's equity to compensate for the risk they undertake.

After-Tax Cost

The after-tax cost is the net cost of a transaction, investment, or other financial activity after taking into account the effect of taxes.

Debt-Equity Ratio

Measures a company's financial leverage calculated by dividing its total liabilities by stockholders' equity.

Pre-Tax Cost

The expense or cost incurred by an entity before taxes have been deducted.