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1. Problem Statement
Design a password validator with different requirements for regular users, administrators, and super administrators. The policy should be easy to extend when roles or rules change.
2. Live Coding Format
Work in the provided coding workspace while explaining your decisions to the live interviewer. Validation may use inline tests, examples, comments, or a verbal walkthrough.
3. Key Focus Areas
- 1Policy and rule interfaces
- 2Role-to-policy composition
- 3Useful validation errors
- 4Unicode and normalization
- 5Unit and boundary testing
4. What Strong Candidates Should Demonstrate
- Model password policies without a brittle role-by-role conditional tree.
- Keep validation rules composable, explainable, and easy to test.
- Avoid security regressions when policies evolve.
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Practice this problem in the live coding workspace while the interviewer probes your clarification, implementation, trade-offs, and validation.
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