← Questions

Serialize and deserialize a binary tree

0
AppleAmazonCodingLast asked Apr 2026

Turn a binary tree into a string and rebuild the identical tree from that string. Choose a format (pre-order with null markers, or level order), handle empty trees and negative values, and explain why your format is unambiguous.

Write and test your solution herePython in your browser, the question's tests level by level, every submission kept for you.Sign in to start coding