Quick Overview

This question evaluates a candidate's ability to traverse tree-structured data and perform subtree aggregation, applying recursive or bottom-up DFS techniques to compute per-node statistics. It tests understanding of hierarchical data modeling and comparison logic with tie-breaking, a common theme in coding interviews assessing tree and graph fundamentals at a practical implementation level.

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Company: Amazon

Role: Applied Scientist

Category: Coding & Algorithms

Difficulty: medium

Interview Round: Technical Screen

Overview: This question evaluates a candidate's ability to traverse tree-structured data and perform subtree aggregation, applying recursive or bottom-up DFS techniques to compute per-node statistics. It tests understanding of hierarchical data modeling and comparison logic with tie-breaking, a common theme in coding interviews assessing tree and graph fundamentals at a practical implementation level.

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