Stacks & Queues

Stacks and queues are fundamental data structures used to manage collections of items. A stack operates on the Last-In, First-Out (LIFO) principle, where the last element added is the first one removed, like a stack of plates. Conversely, a queue follows the First-In, First-Out (FIFO) principle, where the first element added is the first one removed, similar to a waiting line. In Ruby, these can be implemented using arrays or custom classes to manage data in a specific order.

Visit the following resources to learn more:

• @article@Introduction: Stacks and Queues
• @article@Stack, Queue and Deque Data Structures in Ruby
• @article@How to Use Stacks in Ruby to Solve Problems
• @video@Introduction to Stacks and Queues (Data Structures & Algorithms #12)