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mediumNeetCode 150

Cheapest Flights Within K Stops

Cheapest Flights Within K Stops is about turning repeated work into a reusable state instead of re-solving subproblems. Interviewers love it because it reveals your state-and-transition thinking and your edge-case discipline. Once you define the right state, the transitions usually write themselves.

Arrays & HashingGraphsHeap / Priority QueueDynamic ProgrammingBFS / DFS

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