Longest Balanced Binary Subarray Explained (Prefix Sum + Hash Map Intuition) скачать в хорошем качестве

Longest Balanced Binary Subarray Explained (Prefix Sum + Hash Map Intuition)

In this video, we deeply explain the Longest Balanced Binary Subarray problem using Prefix Sum + Hash Map — with full intuition, not memorization. You’ll learn: Why brute force fails Why prefix sums alone are not enough The critical reason we convert 0 → -1 How balance becomes a zero-sum problem Why storing the earliest index is mathematically optimal This video builds real algorithmic intuition and prepares you for: Coding interviews LeetCode pattern recognition Advanced prefix hashing problems If you’ve ever memorized solutions without truly understanding why they work — this video fixes that. prefix sum hash map balanced binary subarray leetcode prefix sum data structures and algorithms coding interview preparation python algorithms array problems zero sum subarray algorithm intuition software engineering interviews leetcode patterns