Web Reference: Oct 4, 2025 · Serialization: Perform preorder traversal, store node values and insert -1 wherever a node is null. Deserialization: Rebuild the tree by reading values in preorder order. If the value is -1, return null. Otherwise, create a node and recursively build its left and right children. Oct 25, 2023 · Binary serialization preserves type fidelity, which means that the complete state of the object is recorded and when you deserialize, an exact copy is created. This type of serialization is useful for preserving the state of an object between different invocations of an application. Design an algorithm to serialize and deserialize a binary tree. There is no restriction on how your serialization/deserialization algorithm should work. You just need to ensure that a binary tree can be serialized to a string and this string can be deserialized to the original tree structure.
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