Question: Given a non - empty queue initially containing the elements [ 2 , 4 ] with 2 at the front and 4 at the rear.
Given a nonempty queue initially containing the elements with at the front and at the rear. Perform the following sequence of operations:
dequeue
enqueue
enqueue
dequeue
enqueue
What elements are left in the queue from front to rear after completing the above operations?
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