Dive into an in-depth video tutorial focusing on advanced Binary Search Tree (BST) questions commonly asked in FAANG interviews. Explore four challenging problems: converting a normal BST to a balanced BST, constructing a BST from preorder traversal, flattening a BST to a sorted linked list, and finding two sum in a BST. Learn multiple approaches for each problem, including detailed explanations of algorithms and step-by-step code implementations. Gain valuable insights into problem-solving techniques and optimize your solutions for these complex BST operations. Enhance your data structure skills and prepare effectively for technical interviews with this comprehensive guide to tackling BST-related coding challenges.