More Problems

• Check if a binary search tree is valid based on properties.
• Find the sum of all internal nodes at even levels in a binary tree.
• Count the number of paths from the root to leaves in a binary tree.
• Find the second largest value in a binary tree.
• Determine if a binary tree can be folded along its center.
• Check if a binary search tree is balanced by comparing heights.
• Find the depth of a specific node in a binary search tree.
• Count the number of complete nodes in a binary search tree.