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Grokking the Coding Interview Patterns in Python

Populating Next Right Pointers in Each Node

Explore how to connect next right pointers for nodes in a perfect binary tree by applying breadth-first search methods. Learn to link nodes on the same level efficiently and understand traversal logic essential for coding interview questions.

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Statement

Given a perfect binary treeA binary tree in which all the levels are completely filled with nodes, and all leaf nodes (nodes with no children) are at the same level., where each node contains an additional pointer called next. This pointer is initially set to NULL for all nodes. Your task is to connect all nodes of the same hierarchical level by setting the next pointer to its immediate right node.

The next pointer of the rightmost node at each level is set to NULL.

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