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Implement in-memory data structures and booking API
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Apply operations efficiently using Command pattern
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Solve three DSA problems: trie, window, intervals
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Compute letter frequencies from encoded string
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Design a ride-sharing system (Uber)
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Return a valid course completion order
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Design a rate limiter
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Design a Ride-Hailing Platform
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MEDIUMCoding & Algorithms
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MEDIUMCoding & Algorithms
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MEDIUMData Manipulation (SQL/Python)
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