The File Size Profiler
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
- L3
Interview Prompt
Given entries (list of 'filepath size_bytes timestamp' strings), sum size_bytes per file extension (everything after the last '.' in the filename). Files without an extension (no '.' in basename) are grouped under the key 'no_extension'. Return a dict mapping each extension (or 'no_extension') to the total size.
Summary
File types and their disk footprint. One type dominates.
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