Ordered Character Check
A easy Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- easy
- Seniority
- L6
Interview Prompt
You're validating a stream of single-character flags where each entry is either 'A' or 'B'. Return whether the string is well-formed: every A comes before every B, so once a B appears no A follows.
Summary
Check if all As appear before all Bs.
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