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Stacks and Queues

Explore the fundamentals of stacks and queues, focusing on their first-in-last-out and first-in-first-out behaviors. Understand how these data structures are implemented using arrays or linked lists, compare their operation complexities, and consider memory trade-offs to choose the best implementation for your coding needs.

Stack

Stack is a well-known data-structure, which follows first in, last out paradigm. It offers push and pop operations. We'll examine the complexity of these operations when stack is implemented using an array or a linked list.

Stack using Linked List

A stack can be implemented using a linked list. New items are always appended and removed at the head of the list. We discussed in the linked list section that appending an item to the head of a linked list takes ...