Question: A Queue supports the methods pushback(T item), front(), and popFront(). What is the time complexity of these operations if the queue is implemented with: a.

A Queue supports the methods pushback(T item), front(), and popFront(). What is the time complexity of these operations if the queue is implemented with: a. Singly-linked list with no tail pointer b. Singly-linked list with tail pointer c. Doubly-linked list d. Vector e. Circular array Explain your answers.

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