3673. Find Zombie Sessions
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Table: app_events +------------------+----------+ | Column Name | Type | +------------------+----------+ | event_id | int | | user_id | int | | event_timestamp | datetime | | event_type | varchar | | session_id | varchar | | event_value | int | +------------------+----------+ event_id is the unique identifier for this table. event_type can be app_open, click, scroll, purchase, or app_close. sessi
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solution.cppC++17
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