Suppose We Create a Deque (Double-Ended Queue) Data Structure

question 36

Multiple Choice

Suppose we create a deque (double-ended queue) data structure. It is basically a queue, with its addLast and removeFirst operations, but we also add the addFirst and removeLast operations. If a line at the grocery store resembles a deque more than a queue, what is the most likely reason?
I the cashier is very fast
II the line is very long
III the cashier is very slow

• A) I
• B) II
• C) I and II
• D) II and III

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Definitions:

Invert Times

A term not recognized as a standard key term in familiar contexts, therefore considered NO.

Heparin

A substance formed in the liver that inhibits the coagulation of blood.

No Additive

Describes products, especially foods, that do not contain additional ingredients such as preservatives, colors, or artificial flavors.

No Anticoagulant

A condition or directive indicating that no substances that prevent blood clotting (anticoagulants) are to be used.