More Problems

• Implement a function to calculate the maximum path sum from leaf to root in a binary tree.
• Count the number of complete binary trees that can be formed with N nodes.
• Find the number of leaf nodes at the maximum depth of a binary tree.
• Calculate the sum of all even-numbered nodes in a binary search tree.
• Implement a function to flatten a binary tree to a linked list in a preorder traversal.
• Find the path with the maximum sum in a binary search tree that starts from any node.
• Check if a binary tree can be converted to a binary search tree by changing at most one node.
• Find the longest palindromic subsequence in a binary tree.