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3 March, 00:51

Suppose that a client performs an intermixed sequence of (queue) enqueue and dequeue operations. The enqueue operations put the integers 0 through 9 in order onto the queue; the dequeue operations print out the return value. Which of the following sequence (s) could not occur? a. 0 1 2 3 4 5 6 7 8 9 b. 4 6 8 7 5 3 2 9 0 1c. 2 5 6 7 4 8 9 3 1 0

d. 4 3 2 1 0 5 6 7 8 9

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Answers (1)
  1. 3 March, 02:00
    0
    b, c and d can't occur.

    Explanation:

    Order is preserved in queue. Option A is order preserving so only it will occur.
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