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Leetcode 428. Serialize and Deserialize N-ary Tree

Design algorithms to serialize an N-ary tree into a single string and deserialize it back, preserving node values and the arbitrary number and order of children. The core challenge is choosing an unambiguous encoding (e.g., child-counts or markers) and using traversal (DFS/BFS) to record and reconstruct the tree efficiently.

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Bloomberg

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Early August, 2025

Bloomberg

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