More Problems

• Implement a function to find the sum of all right leaf nodes in a binary tree.
• Write a program to find the common ancestor of two nodes in a binary tree.
• Implement a function to count the total number of nodes in a binary tree.
• Write a program to find all paths from the root to leaves that sum to a given value.
• Implement a function to find the longest path from the root to a leaf in a binary tree.
• Write a program to determine if a binary tree is a valid binary search tree using node values.
• Implement a function to print all ancestors of a node in a binary tree using a stack.
• Write a program to determine the level of a node in a binary tree.