More Problems

• Count the number of complete binary trees that can be formed using a given number of nodes.
• Implement a function to find all the ancestors of a given node in a binary tree.
• Find the longest increasing path in a binary tree.
• Check if a binary tree can be folded in half.
• Write a program to find the maximum sum of non-adjacent nodes in a binary search tree.
• Implement a function to validate a binary search tree using in-order traversal.
• Find the first common ancestor of two nodes in a binary search tree.
• Calculate the number of unique paths from the root to any leaf in a binary search tree.