Question

Show the status of queue after each operation.

enqueue(34)
enqueue(54)
dequeue()
enqueue(12)
dequeue()
enqueue(61)
peek()
dequeue()
dequeue()
dequeue()
dequeue()
enqueue(1)

Answer 1

Status of Queue after each operations:

Operations	Queue Status Initially Queue is Empty #; f = front, r = rear	Remarks/Output
enqueue(34)	34 f	Inserted 34 in Queue
enqueue(54)	34 54 f r	Inserted 54 in Queue
dequeue()	54 f r	Removed 34 from Queue
enqueue(12)	54 12 f r	Inserted 12 in Queue
dequeue()	12 f r	Removed 54 from Queue
enqueue(61)	12 61 f r	Inserted 61 in Queue
peek( )	12 61 f r	Returned 12
dequeue()	61 f r	Removed 12
dequeue()	# Empty	Removed 61
dequeue()	Error : Underflow	Queue is Empty
enqueue(1)	1 f r	Inserted 1 in Queue