intermediateClassic Algorithms & Media LLD44 of 132
Minimum Meeting Rooms variant, followed by Spotify LLD
Tests whether you solve the meeting-rooms variant with a min-heap of end times (not brute-force interval overlap checks), then design Spotify's playlist/playback state separately from the song catalog so playback doesn't mutate shared data.
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Generate a complete, structured system design answer — requirements, capacity estimation, API design, architecture, database choice, scaling, caching, fault tolerance, security, trade-offs, and more, walked through the way a strong senior engineer would in a real interview.
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