Solution: Min Stack
Understand how to design a custom Min Stack that supports push, pop, and retrieval of the minimum element in O(1) time. Explore using two stacks to efficiently track the minimum value while maintaining constant time operations for all methods in coding interviews.
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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 ...