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Sushant Kumbhar on Instagram: "Best Data Structure: Balanced BST (AVL Tree / Red-Black Tree) or TreeMap/TreeSet in Java Reasons: 1. Maintains Sorted Order Automatically – No need to sort after every insertion (unlike ArrayList/LinkedList). 2. Efficient Insertion & Deletion – O(log n), much faster than arrays where shifting elements is required. 3. Fast Searching – O(log n) lookup vs O(n) in unsorted structures. 4. Scalable for Large Data – Handles thousands/millions of records while keeping them