Check path in N-ary tree

Q: Check path in N-ary tree

This question evaluates understanding of tree traversal and sequence matching in N-ary trees, including handling non-unique node values and maintaining traversal state across branches.

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Question

Given the root of an N-ary tree and a sequence of integers path[0..k-1], determine whether there exists a path starting at the root whose node values match the sequence in order. Node values are not guaranteed to be unique, and the matching path does not need to end at a leaf. Describe your algorithm, analyze time and space complexity, and provide code.

Check path in N-ary tree

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