DIY: Min Stack
Explore how to implement a min stack that supports push, pop, and min operations efficiently. Understand algorithms for maintaining a stack that returns the minimum element in constant time, crucial for optimizing coding interview solutions.
We'll cover the following...
We'll cover the following...
Problem statement
You have to implement the minStack class, which has a min() function. Whenever min() is called, the minimum value of the stack is returned in O(1) time. The element is not popped from the stack. Its value is simply returned.
Input
The input will be a stream of numbers ...