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Consider the following operation along with Enqueue and Dequeue operations on queues, where k is a global parameter.
MultiDequeue(Q){
 m = k
while (Q is not empty) and (m > 0) {
Dequeue(Q)
m = m – 1
}
}
What is the worst case time complexity of a sequence of n queue operations on an initially empty queue?
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider the following operation along with Enqueue and Dequeue operat...
There are three possible operations on queue- Enqueue, Dequeue and MultiDequeue. MultiDequeue is calling Dequeue multiple times based on a global variable k. Since, the queue is initially empty, whatever be the order of these operations, there cannot be more no. of Dequeue operations than Enqueue operations. Hence, the total no. operations will be  n only.
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Most Upvoted Answer
Consider the following operation along with Enqueue and Dequeue operat...
Since the Queue is initially empty so the while loop always evaluates to false. n such operations are performed on Queue and hence complexity is theta(n).
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