In this video, we break down the classic "Longest Substring Without Repeating Characters" problem—a frequently asked coding interview question at Microsoft, Google, and other top tech companies.
We walk through the powerful **Sliding Window** technique, explaining step-by-step how to use a HashMap to achieve an optimal **O(N) time complexity** solution in Java. This concept is fundamental for any Software Development Engineer (SDE) interview preparation!
### ⏰ Timestamps:
[00:00] - Introduction to the Longest Substring Problem
[00:55] - Understanding the Sliding Window Approach
[02:30] - Whiteboarding the Logic (Walkthrough)
[04:15] - The Final Java Code Implementation
[07:05] - Time and Space Complexity Analysis
### 🔗 Resources & Code:
* **Full Java Code (GitHub):** [Your GitHub Link Here]
* **LeetCode Problem Link:** [Problem Link Here]
* **Join the Community (Discord/Socials):** [Your Social Media Links Here]
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#Microsoft #CodingInterview #Java #SlidingWindow #LongestSubstring #LeetCode
