More Problems

• Implement a function to find the first common ancestor of two nodes in a binary tree.
• Write a program to check if two binary trees are mirror images of each other.
• Implement a function to count the number of odd nodes in a binary tree.
• Write a program to count the number of even nodes in a binary tree.
• Implement a function to find the sum of all the even nodes in a binary tree.
• Write a program to find the sum of all the odd nodes in a binary tree.
• Implement a function to check if a binary tree is a mirror of itself.
• Write a program to find the sum of all nodes at even levels in a binary tree.