Where the Buck Stops

A hard Python interview practice problem on DataDriven. Write and execute real python code with instant feedback.

Domain

Python

Difficulty

hard

Seniority

L5

Problem

A directory export gives you reporting lines as (`manager`, `report`) pairs in no particular order, and you need the org chart back. Return the reporting hierarchy as nested dictionaries, with the one person nobody reports to at the top.

Summary

A pile of reporting lines, no order to them. Somewhere in the bag sits the one with no boss.

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