We are trying to use two stacks to implement a queue. Name the two stacks as...

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Programming

We are trying to use two stacks to implement a queue. Name thetwo stacks as E and D. We will enqueue into E and dequeue from D.To implement enqueue(e), simply call E.push(e). To implementdequeue(), simply call D.pop(), provided that D is not empty. If Dis empty, iteratively pop every element from E and push it onto D,until E is empty, and then call D.pop().

  1. Considering the worst case running time, what is theperformance in terms of big Oh of an enqueue operation? What is theperformance in terms of big Oh of a dequeue operation?
  2. To complete one task, we need perform n operations, halfenqueue and half dequeue (assume no dequeue from empty queue). Whatis the worst case overall running time (big oh) for the wholetask?

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Enqueue operation will have a time complexity of O1 This operation will take constant time because every time the function enqueue is called we simply have to call push operation on stack E which is a constant time operation Whereas    See Answer
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