Compare the breadth-first and depth-first search algorithms : Stack Data Structure

This video tutorial introduces the stack data structure, explaining its LIFO nature and operations like push and pop. It provides examples of stacks in real life and demonstrates how to implement stack operations in Python using append and pop methods. The tutorial concludes with a summary of the stack concepts and a preview of the next video on the DFS algorithm.

What is a stack in the context of data structures?

• A linear data structure following LIFO principle

• A linear data structure following FIFO principle

• A hierarchical data structure

• A collection of elements with no specific order

Which operation is used to add an item to the top of a stack?

• Enqueue

• Push

• Append

• Insert

What happens when you perform a pop operation on a stack?

• The bottom item is removed

• The top item is removed

• A new item is added

• The stack is cleared

In Python, which method is used to add an item to a list functioning as a stack?

• add()

• append()

• push()

• insert()

What is the order of item removal in a stack?

• First In, First Out

• Last In, First Out

• First In, Last Out

• Random Order