GATE | GATE CS 2013 | Question 44

Consider the following operation along with Enqueue and Dequeue operations on queues, where k is a global parameter.

   m = k
   while (Q is not empty and m  > 0) {
      m = m - 1

What is the worst case time complexity of a sequence of n MultiDequeue() operations on an initially empty queue? (GATE CS 2013)

(A) \Theta(n)
(B) \Theta(n + k)
(C) \Theta(nk)
(D) \Theta(n^2)

(A) A
(B) B
(C) C
(D) D

Answer: (A)

Explanation: See

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