More Problems

• Find the first common ancestor of two nodes in a binary tree.
• Print all ancestors of a node in a binary tree.
• Check if a binary search tree is balanced.
• Find the path length between two nodes in a binary tree.
• Find the sum of all nodes in a binary tree using recursion.
• Find the second largest element in a binary search tree.
• Find the maximum leaf-to-leaf path sum in a binary tree.
• Implement a function to serialize and deserialize a binary tree.