To implement a stack using queues, you will need 2 queues. Here's a step by step process:

1. Initialize two queues, q1 and q2.
2. To push an element, enqueue it in q1.
3. To pop an element, dequeue all elements from q1 and enqueue them to q2 until only one element is left in q1. Dequeue this last element from q1, which is the popped element. Then, swap the names of q1 and q2.

So, the answer is a) 2.

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To implement a stack using queues, you will need 2 queues. Here's a step by step process:

1. Initialize two queues, q1 and q2.
2. To push an element, enqueue it in q1.
3. To pop an element, dequeue all elements from q1 and enqueue them to q2 until only one element is left in q1. Dequeue this last element from q1, which is the popped element. Then, swap the names of q1 and q2.

So, the answer is a) 2.

Knowee AI · Accepted Answer

To implement a stack using queues, you will need 2 queues. Here's a step by step process:

1. Initialize two queues, q1 and q2.
2. To push an element, enqueue it in q1.
3. To pop an element, dequeue all elements from q1 and enqueue them to q2 until only one element is left in q1. Dequeue this last element from q1, which is the popped element. Then, swap the names of q1 and q2.

So, the answer is a) 2.

to implement a stack using queue how many queues will you need a)2b(3c)1d)4

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