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The File Tree Builder
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
- senior
Interview Prompt
Your deploy pipeline logs every file path that changed in the latest release. For the post-deploy audit dashboard, you need to reconstruct the directory tree from flat path strings. Write a function that takes a list of file paths and builds a nested dictionary representing the directory structure, where leaf files map to null.
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