Min Stacks

The lecture covers the concept of a min stack, a data structure that supports standard stack operations like push, pop, and top, along with an additional operation to retrieve the minimum element in constant time. The instructor explains the basic stack operations and introduces the get min functionality, which allows for efficient retrieval of the minimum element. The lecture also discusses the design of a min stack using an auxiliary stack to keep track of minimum values, ensuring constant time complexity for all operations.

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