Cracking The Coding Interview Together – Problem 4.6: In-Order Successor in a BST
Cracking The Coding Interview Together – Problem 4.5: Validate BST
Cracking The Coding Interview Together – Problem 4.4: Check Balanced Binary Tree
Cracking The Coding Interview Together – Problem 4.3: List of Depths
Cracking The Coding Interview Together – Problem 4.2: Minimal Tree