More Problems

• Write a program to find the second largest element in a binary search tree.
• Implement a function to count the number of internal nodes in a binary tree.
• Write a program to find the smallest value in a binary tree.
• Implement a function to reverse level order traversal of a binary tree.
• Write a program to find all nodes at distance k from a given node in a binary tree.
• Implement a function to count nodes with only one child in a binary tree.
• Write a program to check if a binary tree is symmetric.
• Implement a function to find the path with the maximum sum in a binary tree.