More Problems

• Implement a function to count the number of nodes in a complete binary tree.
• Find the total number of paths in a binary tree that sum to a specific value.
• Implement a function to validate a binary search tree using a helper function.
• Find the median of all the elements in a binary search tree.
• Calculate the sum of nodes at even levels in a binary tree.
• Find the sum of all nodes with an even-valued grandparent in a binary tree.
• Create a function to find the height of the left and right subtrees in a binary tree.
• Check if a binary tree is symmetric by comparing left and right subtrees.