More Problems

• Count the number of nodes in the longest path from the root to a leaf in a binary tree.
• Implement a function to perform in-order traversal of a binary tree iteratively.
• Find the average of all leaf nodes in a binary tree.
• 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.