Encode and Decode Strings | Array & Hashing | Blind 75

🚀 Struggling with DSA for tech interviews? This Blind 75 problem is a MUST-KNOW for FAANG & product-based company interviews. 👨‍💻 What you’ll learn: ✔ Brute force approach (and why it fails) ✔ Optimal solution using hashing ✔ Time & space complexity analysis ✔ Interview tips and common mistakes ✔ How interviewers expect you to think 🔥 This is part of my Blind 75 Interview Preparation Series — designed to make you interview-ready, not just LeetCode-ready. ──────────────────────────── 📌 PLAYLISTS YOU SHOULD WATCH NEXT ▶ Blind 75 – Full Playlist 👉    • BLIND 75   ▶ Sliding Window Playlist (VERY IMPORTANT) 👉    • Sliding Window Simplified   ▶ Prefix Sum Playlist 👉    • Prefix Sum Simplified   ──────────────────────────── 🧠 INTERVIEW TIP: Interviewers don’t care about memorized code — they care about **how you optimize from brute force to optimal**. This video shows that exact mindset. 💬 COMMENT BELOW: Did you understand the optimization? Want the next Blind 75 problem? 👍 LIKE | 🔔 SUBSCRIBE | 📤 SHARE If you’re serious about cracking tech interviews, this series is for you. #blind75 #ArrayAndHashing #TechInterview #DSA #LeetCode #faangcodinginterviewpreparation #leetcode