More Problems

• Count the number of nodes with two children in a binary tree.
• Find the total number of nodes in a binary search tree.
• Find the sum of all nodes in a binary tree using an iterative approach.
• Check if a binary tree is a valid max heap based on properties.
• Count the number of nodes in a binary tree that are less than a given value.
• Find the maximum sum of nodes at odd levels in a binary search tree.
• Find the maximum sum of nodes at even levels in a binary search tree.
• Implement a function to print all paths from the root to leaf nodes in a binary search tree.