The Parentheses Factory
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
A template engine checks its output by enumerating every legal bracket nesting it could emit. Given a non-negative integer `n`, return every well-formed string built from `n` pairs of parentheses, including the empty string when `n` is `0`. Order the results so that, comparing them character by character, an open paren ranks before a close paren.
Summary
Building balanced brackets is an art form.
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