NexTech12 on Instagram: "3Sum Problem Explained in 3 Minutes | Coding Interview Must-Know Master the 3Sum coding interview problem in just a few minutes 🚀 In this video, I explain how to find all unique triplets in an array whose sum equals zero, using: ✅ Sorting ✅ Two-Pointer Technique ✅ Duplicate handling This approach runs in O(n²) time and is frequently asked in FAANG, product-based, and service-based company interviews. Perfect for: • DSA preparation • LeetCode practice • Coding interviews
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