More Problems

• 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.
• Write a program to find the longest path in a binary tree.
• Implement a function to find the number of nodes at a specific depth in a binary tree.
• Write a program to print the boundary of a binary tree.
• Implement a function to check if a binary tree is a subtree of another binary tree.