Design a library that models catalog titles versus physical copies, members and librarians, checkout/return/renew/reserve flows with loan due dates, an overdue fine policy, and notifications as a boundary.
Design a library management system: members check out, return, and renew physical copies of catalogued titles, and can place a hold on a title with no available copy. Loans have due dates, late returns incur a fine, and members are notified when a hold becomes available. Start by clarifying scope and the key objects.
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.
Practice this problem in the live coding workspace while the interviewer probes your clarification, implementation, trade-offs, and validation.
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