Data Structures and Algorithms The Complete Masterclass - Min Stacks

The video tutorial discusses the concept of a min stack, a data structure that supports push, pop, top, and retrieving the minimum element in constant time. It explains basic stack operations like push, pop, and top, and introduces the getmin function. The tutorial provides examples and demonstrates how to implement a min stack efficiently by maintaining a separate stack to track minimum values.

What are the three common tasks performed with a stack?

Explain the push operation in the context of a stack.

What does the pop operation do in a stack?

Describe the top or peak operation in a stack.

What is the purpose of the get min function in a min stack?

How can we achieve constant time complexity for retrieving the minimum element in a stack?

How do you update the minimum value when a new element is pushed onto the stack?

What happens to the minimum value when an element is popped from the stack?

What is the significance of maintaining a separate min stack?

Explain how a min stack is implemented to keep track of minimum values.