Unflatten Keys
A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.
- Domain
- Python
- Difficulty
- medium
- Seniority
- L4
Problem
Given a flat dict whose keys use dot notation like 'a.b.c', build and return a nested dict where each dot segment becomes a nested key.
Summary
Dots in the key names. Rebuild the structure.
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