Each of these data structures is designed for a different purpose and therefore has different performance characteristics.

Arrays -

• Fixed size

• Provide O(1) access to any element using its index.

• Insertion/deletion in the middle requires shifting elements → O(n).

  Stacks(LIFO - LAST IN, FIRST OUT) -

• Access is limited to the top element.

• Push and Pop operations → O(1).

• No random access to middle elements.

  Queues (FIFO – First In, First Out) -

• Elements are added at the rear and removed from the front.

• Enqueue (push) and Dequeue (pop) → O(1).

• No direct access to middle elements.