Google SDE Interview Question(2025) | Serialization & Tree Parsing

Google · Question · Posted Jun 2026

Question 1: Serialize and Deserialize a Binary Tree Problem Statement Serialization is the process of converting a data structure or object into a sequence of bits (a string) so that it can be stored in a file, memory buffer, or transmitted across a network. Deserialization is the process of reading that string and reconstructing the exact original data structure. Design an algorithm to serialize and deserialize a Binary Tree. There is no restriction on how your serialization/deserialization algorithm should work. ...

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