To implement a stack using queues, we will need two queues. Here is the step by step process:

1. We maintain two queues, let's call them queue1 and queue2.
2. For the push operation, we always enqueue the element into queue1.
3. For the pop operation, we dequeue all elements from queue1 and enqueue them into queue2 until only one element is left in queue1. We then dequeue and return this last element from queue1. After this operation, queue1 is empty and queue2 contains all the elements.
4. We then swap the names of queue1 and queue2.

So, the answer is 2.

Question

To implement a stack using queues, we will need two queues. Here is the step by step process:

1. We maintain two queues, let's call them queue1 and queue2.
2. For the push operation, we always enqueue the element into queue1.
3. For the pop operation, we dequeue all elements from queue1 and enqueue them into queue2 until only one element is left in queue1. We then dequeue and return this last element from queue1. After this operation, queue1 is empty and queue2 contains all the elements.
4. We then swap the names of queue1 and queue2.

So, the answer is 2.

Knowee AI · Accepted Answer

To implement a stack using queues, we will need two queues. Here is the step by step process:

1. We maintain two queues, let's call them queue1 and queue2.
2. For the push operation, we always enqueue the element into queue1.
3. For the pop operation, we dequeue all elements from queue1 and enqueue them into queue2 until only one element is left in queue1. We then dequeue and return this last element from queue1. After this operation, queue1 is empty and queue2 contains all the elements.
4. We then swap the names of queue1 and queue2.

So, the answer is 2.

The stack using queue(with only enqueue and dequeue operations), how many queues will we need for implementing?Options2341

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The stack using queue (with only enqueue and dequeue operations), how many queues will we need for implementing?

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