153. Find Minimum in Rotated Sorted Array | Leetcode Blind 75 | Java
🚀 Master "Find Minimum in Rotated Sorted Array" (LeetCode 153) – A classic Binary Search interview problem!
In this video, we tackle a modified Binary Search problem that appears frequently in technical interviews. The challenge? You have a sorted array that has been rotated an unknown number of times, and you need to find the minimum element in \bm{O(\log n)} time. I’ll show you why a simple linear scan (\bm{O(n)}) isn't enough and how to tweak the standard Binary Search algorithm to efficiently locate the pivot point (the minimum value).
👨💻 What We Cover:
• The Problem: Visualizing what a "rotated sorted array" looks like.
• Brute Force Approach: Why a linear scan works O(n) but isn't optimal.
• Optimal Approach: Modifying Binary Search to discard the sorted half of the array.
• The Logic: Comparing mid against end to determine which side contains the minimum.
• Java Implementation: A clean, efficient code walkthrough.
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