Challenge: Min Stack
Explore how to implement a stack that can retrieve the minimum value in constant time while supporting efficient push and pop operations. This lesson guides you through designing a min stack in Java with all key functions operating at O(1) time complexity, preparing you for common coding interview challenges involving stacks.
We'll cover the following...
We'll cover the following...
Statement
Design a stack data structure to retrieve the minimum value in time. The following functions must be implemented:
min(): Returns the minimum value in the stack in