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Populate Next Siblings Pointers in a Given Binary Tree OR Populate Next Right Pointers in Each Node
Objective: - Given a binary tree with three-pointers left, right, and nextSibling). Write the program to provide the nextsibling pointers.
This problem can also be referred as "Populating Next Right Pointers in Each Node"
- Use Recursion.
- Start from the root, if the root's left node is not null then make it point to the root's right child.
- check if root's nextsibling is not null, if NOT then make the next sibling of the root's right node point to the root's nextsibling's left child. (In our example node 5 points to node 6, as per our statement, the Parent of node 5 is node 2, the next sibling of node 2 is node 3, and the left child of node 2 is node 6, So Node 5 will point to Node 6 )
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