Answer: Stripe SWE Interview Question 2024 January | Design | on-campus

Solution 1: Min Stack — Parallel Stacks Approach Approach To design a stack that retrieves the minimum value in O(1) time, we must track the minimum value at each point in the stack's history. We can do this using **two parallel stacks**: We maintain a primary stack stack to store the actual pushed values. We maintain a secondary stack minStack where the top element always represents the current minimum value of stack. push: Push the value onto stack. For minStack, ...