The Build Order
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
Given n modules (0..n-1) and a list of [a, b] edges meaning a depends on b (b must be built before a), return a valid topological build order. Return [] if a cycle exists.
Summary
Some tasks must wait for others to finish first.
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