In this video we discuss two fundamental data structures in computer science: stacks and queues. A stack is a Last-In-First-Out (LIFO) data structure where elements are added and removed from the top, with operations including push, pop, top, and checking for emptiness. We implement a simple stack using a list and demonstrate its usage. On the other hand, a queue is a First-In-First-Out (FIFO) data structure where elements are added to the end and removed from the beginning, with operations including en queue, de queue, and checking for emptiness. We implement two versions of a queue using lists, highlighting their limitations in terms of efficiency. The video sets the stage for exploring more efficient implementations of queues using linked lists in future videos.
7:23 · 2013