Extract Leaf Values
A medium Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- medium
- Seniority
- L4
Interview Prompt
A service's runtime configuration arrives as a nested dict `config` where each value is either a subsection (another dict) or a plain setting value at the bottom. Return every plain setting value in one flat list, ordered by where it sits: read each dict's keys top to bottom, and a subsection's values come out before the values of any sibling keys that follow it.
Summary
The tree has leaves. Pluck them.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your python solution with real code execution
- Get instant feedback and a hire/no-hire decision