Binary Tree, Data Structure Algorithm, Algorithms, Dotnet, Csharp.
(root == null) return; // Traverse the left subtree Postorder(root.left, result); // Traverse the right subtree Postorder(root.right, result); // Visit the current node result.Add(root.val); } Iterative Approach using a Stack In this approach, we start from the root node, we push nodes onto the