Solved Daily Temperatures problem using Monotonic Stack in Python

Yesterday, during a technical test, I encountered a concept I had never heard of before — the Monotonic Stack. As a Python developer, I typically work with lists, dictionaries, and stacks, but this challenge required an efficient solution — avoiding nested loops and using a single pass algorithm. That's when I discovered the Monotonic Stack, a data structure technique that maintains elements in increasing or decreasing order while iterating through a list. The problem I tackled was finding, for each day, how many days you need to wait for a warmer temperature — the well-known Daily Temperatures problem. The key idea involved: - Using a stack to store indices of unresolved days - Popping from the stack when a warmer day is found - Computing the difference between days in O(n) time I found it fascinating how such a simple structure can efficiently solve what initially appears to be a complex problem. Sometimes, we don’t need more powerful tools — we just need better thinking patterns. #Python #Algorithms #CodingInterview #Learning #SoftwareEngineering #MonotonicStack

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