Leetcode 1741. Find Total Time Spent by Each Employee

Group employee time-entry records by emp_id and event_day and compute total_time as the sum of (out_time - in_time) for each group. Note that in_time < out_time and events on the same day do not overlap, so a simple aggregation yields the total minutes per employee per day.

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Leetcode 1741. Find Total Time Spent by Each Employee

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