3 Sum Problem 🔥 | Brute Force to Optimal Approach | Java DSA | A2Z SDE Sheet

🚀 Welcome back to the 60 Days A2Z SDE Sheet Challenge (Java Edition)! In this video, we solve the 3 Sum Problem, one of the most popular and frequently asked array questions in coding interviews and online assessments 💻🔥 📌 Learn how to optimize the solution from Brute Force → Better → Optimal (Two Pointer) approach while avoiding duplicate triplets. 📚 Topics Covered: • 3 Sum Problem • Brute Force Approach (O(N³)) • Better Approach using Hashing • Optimal Two Pointer Approach (O(N²)) • Handling Duplicate Triplets • Sorting + Two Pointer Technique • Dry Run & Code Explanation • Time & Space Complexity Analysis 🎯 Why Watch This Video? • Master one of the most asked interview problems • Learn the Two Pointer technique in depth • Understand duplicate handling in arrays • Improve problem-solving for coding interviews and placements 👉 Full A2Z SDE Sheet Roadmap: 🔗 https://a2z-sde-sheet-challenge.verce... 👉 Complete Java A2Z SDE Sheet Playlist: 🎥    • 60 Days A2Z SDE Sheet Challenge (Java Edit...   👉 Previous Playlist (C++ Version): 🎥    • 45 Days DSA Striver's A2Z SDE Sheet Challenge   🔗 Connect with me: LinkedIn:   / sameeksha-barhaiya308716   Instagram:   / sameekshabarhaiya_17   🔔 Don't forget to Like, Share & Subscribe for daily DSA content! #Java #ThreeSum #TwoPointers #Arrays #DSA #A2ZSDEsheet #CodingInterview #JavaDSA