Question

For a queue, if we enqueue 1, 2, 3, 4, 5 and then dequeue five times, give the order of the elements dequeued from the queue.

Answer 1

Answer:

enqueue is used to add an item to queue

dequeue is used to remove an item from queue

When we enqueue 1, 2, 3, 4, 5 then items will be stored in queue like below

enqueue - 5 4 3 2 1 - dequeue

When we dequeue five times, the below is the order oof the elements dequeued from the queue

1 2 3 4 5

First 1 will be dequeued then 2 then 3 then 4 then 5

Because Queue is a liner data structure and it follows FIFO or LILO. it means First In First Out or Lasst In Last Out