# Algorithms Quiz | SP Contest 3 | Question 2

What is the minimum number of queues needed to implement a stack? We are not allowed to use any other data structure and also not allowed to use recursion. We may assume that given queue has basic functions like enqueue(), dequeue(), size(), isEmpty()**(A)** 1**(B)** 2**(C)** 3**(D)** 4**Answer:** **(A)****Explanation:** https://www.geeksforgeeks.org/implement-a-stack-using-single-queue/

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