Introduction to Stacks and Queues

In the world of computer science, stacks and queues are fundamental data structures used for managing data in specific orderings. They have important applications in various domains, including robotics and computer vision.

A stack is a collection of elements that follows the LIFO (Last In, First Out) principle. Imagine a stack of plates. When you add a new plate, it goes on top, and when you remove a plate, you remove the topmost one first. This behavior can be observed in real-life scenarios, such as a stack of books or a call stack in a program.

On the other hand, a queue is a collection of elements that follows the FIFO (First In, First Out) principle. Think of a queue of people waiting in line. The first person who joins the queue is the first to be served, and as new people join, they join at the end of the queue. This behavior is similar to waiting in line at a ticket counter or a checkout counter.

Understanding stacks and queues is crucial because they provide efficient ways to manage data in specific scenarios. For example, stacks can be used for function call tracking, memory management, and expression evaluation, while queues can be used for task scheduling, job processing, and event handling.

In this lesson, we will explore the concepts of stacks and queues in more detail and learn how to implement them in code. We will also discuss their operations, common applications in robotics and computer vision, and consolidate our knowledge with practical examples and exercises.

Now, let's dive into the fascinating world of stacks and queues!

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if __name__ == "__main__":

  for i in range(1, 101):

    if i % 3 == 0 and i % 5 == 0:

        print("FizzBuzz")

    elif i % 3 == 0:

        print("Fizz")

    elif i % 5 == 0:

        print("Buzz")

    else:

        print(i)

​

print("Print something")