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Decode the Coding Interview in Kotlin: Real-World Examples

DIY: Populating Next Right Pointers in Each Node

Understand how to populate next right pointers in each node of a perfect binary tree. Learn to traverse the tree and link nodes at the same level effectively for coding interview preparation.

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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. ...