Grokking Advanced Coding Patterns for Interviews
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Clone N-ary Tree (hard)
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Problem Statement

Given the root of an N-ary tree, return a deep copy (clone) of this tree.

Each node in the N-ary tree has an integer value (val) and a list of its children (children). The deep copy should have the exact structure and values as the original tree but should not share any references with it.

Examples

Example 1

  • Input: root = [1, null, 2, 3, 4, 5, null, 6, 7, null, 8]
  • Expected Output: [1, null, 2, 3, 4, 5, null, 6, 7, null, 8]
  • Justification:
    • The tree has multiple levels, where each node has a different number of children

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