LeetCode 3: Longest Substring Without Repeating Characters | Two Pointer Approach || DSA In Java

🔥 LeetCode 3: Longest Substring Without Repeating Characters | Two Pointer Approach | Explained in Hindi In this video, we solve one of the most important coding interview questions — Longest Substring Without Duplicate Characters. 💡 Problem Statement: Given a string s, find the length of the longest substring without repeating characters. 🚀 What you'll learn: • Two Pointer / Sliding Window Approach • Optimal O(n) Solution • Step-by-step Dry Run • Clean Code Explanation • Interview Tips 👨‍💻 Code Language: Java 📌 Topic: DSA | Sliding Window | HashSet 🧠 Why this question is important? This is a very commonly asked problem in coding interviews (Amazon, Google, Microsoft). 📌 Practice Here: LeetCode Problem: Longest Substring Without Repeating Characters 👉 Don’t forget to Like 👍, Share 🔁 and Subscribe 🔔 for more coding content! #leetcode #dsa #twopointer #slidingwindow #codinginterview #rahulkumawat