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Robinhood
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Quick Summary
Group timestamped price pairs into fixed 10-unit time windows.
Compute OHLC metrics based on chronological order within each populated window.
Detect missing intervals and forward-fill them using the previous interval's closing price.
What This Tests
Data aggregation and bucketing techniques
Sorting and sequential iteration
Gap detection and stateful forward-filling
Handling real-world time-series edge cases
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