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Gated Maze Pathfinder
Fix defects in an existing maze-routing codebase, build a shortest-path search that respects one-way gates, then make it fast enough for mazes of up to a million cells.
Design and implement a small airfield scheduler that sequences takeoffs and landings while handling runway conflicts and changing priorities with help from an AI assistant.
Build an airfield controller that safely schedules takeoffs and landings across available runways. Clarify the rules first, then use the AI assistant where it helps.
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.
Continue to DashboardHidden because they name the technique, which a real interviewer would not tell you.
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Fix defects in an existing maze-routing codebase, build a shortest-path search that respects one-way gates, then make it fast enough for mazes of up to a million cells.
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Fix defects in a small word-game codebase, write an exact search that picks words sharing no letter for the largest total length, then make it fast on large word lists.
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Build an extensible warehouse navigation service, then evolve it from one robot to multiple robots with collision handling.
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Implement a bounded cache with recency-based eviction, then reason through thread safety, race conditions, and production hardening.