Min Stack
Explore how to design a Min Stack that performs push, pop, and finds the minimum element all in O(1) time. This lesson helps you understand the implementation of a custom data structure to maintain efficient retrieval of minimum values, an essential skill for solving advanced coding interview problems involving stacks and optimized data access.
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Statement
Design a custom stack class, Min Stack, allowing us to push, pop, and retrieve the minimum value in constant time. Implement the following methods for Min Stack:
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Constructor: This initializes the Min Stack object.
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Pop(): This removes and returns from the stack the value that was most recently pushed onto it.
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Push(): This pushes the provided value onto the stack.
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Min Number(): This returns the minimum value in the stack in ...