DIY: Min Stack
Understand how to implement a min stack class that supports push, pop, and a min function returning the smallest element in constant time without popping it. This lesson guides you through designing an efficient algorithm to handle a stream of numbers while optimizing retrieval of the minimum value in a stack data structure.
We'll cover the following...
We'll cover the following...
Problem statement
You have to implement the min_stack 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 ...