Which of the Following Correctly Initializes a Doubly Linked List

question 40

Multiple Choice

Which of the following correctly initializes a doubly linked list in the default constructor?

• A) head = nullptr;
• Back = nullptr;
• B) head = 0;
• Back = 0;
• Count = 0;
• C) first = 0;
• Last = 0;
• D) first = nullptr;
• Last = nullptr;
• Count = 0;

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Definitions:

Communication

The exchange of information or ideas between individuals or groups.

Low-Context Culture

A communication style that relies heavily on explicit and detailed verbal information rather than context, non-verbal cues, or shared history to convey meaning.

Nonverbal Communication

A form of communication that involves conveying messages through gestures, facial expressions, body language, and tone of voice rather than words.

Albert Mehrabian

A psychologist known for his theories on the relative importance of verbal and non-verbal messages in human communication.