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Grokking the Coding Interview Patterns in C#

Solution: Populating Next Right Pointers in Each Node

Explore how to populate the next right pointers in each node of a perfect binary tree. Understand both naive and optimized breadth-first search solutions to efficiently link nodes at the same level, improving traversal and connectivity without extra space.

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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.

Constraints:

  • The number of nodes in the tree is in the range
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