The Flat Mapper
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 a list containing integers and/or flat lists of integers (one level of nesting only), return a single flat list of all integers in order. Do not recurse into deeper nesting (none will be present).
Summary
Nested values. One flat stream out.
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