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Grokking the Coding Interview Patterns

Populating Next Right Pointers in Each Node

Explore how to connect each node to its immediate right node in a perfect binary tree using breadth-first search techniques. This lesson helps you understand tree structures with level-wise connections and implement efficient traversal methods to set next pointers correctly.

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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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