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DIY: Populating Next Right Pointers in Each Node

Explore how to connect each node's next pointer in a perfect binary tree to its immediate right node. This lesson helps you implement a function to traverse and link nodes, reinforcing tree traversal concepts essential for coding interviews.

Problem statement

You are given a perfect binary tree where all the leaves are on the same level and every parent has two children. We have added an additional next pointer to our TreeNode implementation. ...