More Problems

• Find the number of nodes that are at the same level in a binary tree.
• Implement a function to find the maximum depth of a binary search tree.
• Create a function to find the boundary of a binary tree.
• Find the smallest subtree that contains both given nodes in a binary tree.
• Implement a function to count the number of nodes in a complete binary tree.
• Find the total number of paths in a binary tree that sum to a specific value.
• Implement a function to validate a binary search tree using a helper function.
• Find the median of all the elements in a binary search tree.