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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
mid, senior

Interview Prompt

A CI/CD system needs to determine the correct order to build modules where some modules depend on others. Given a number of modules and a list of dependency pairs, write a function that returns a valid topological ordering. Return an empty list if a cycle is detected.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your python solution with real code execution
  4. Get instant feedback and a hire/no-hire decision