More Problems

• Implement a function to find the first leaf node in a binary search tree.
• Count the number of nodes with values less than a given value in a binary search tree.
• Implement a function to find the maximum depth of a binary tree using BFS.
• Find the maximum product of split of a binary search tree.
• Implement a function to find all root-to-leaf paths in a binary tree.
• Check if two binary trees can be represented as a valid binary search tree based on properties.
• Write a program to find the sum of nodes at even levels in a binary tree.
• Implement a function to find the total number of unique binary trees that can be formed with N nodes.