Given a binary tree, Print All the Nodes that don’t have Siblings.

Objective: Given a binary tree, Print All the Nodes that don’t have siblings.

Note: sibling node is the node which has the same parent, so you need to print the nodes who is a single child of his parent.

Input: A binary tree.

Example:

Approach:

• Do the inorder traversal.
• check if node has only child, if yes then print that child.

Complete Code:Run This Code

Output:

Nodes with No Siblings: 6 7 8 9