DIY: Min Stack
Explore how to implement a min stack class that supports push, pop, and min operations. Learn to return the stack's minimum element in constant time without removing it, applying efficient algorithms to enhance problem-solving skills for coding interviews.
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 ...