Meta
Interview Core Track · Hard · 35 min
Monthly Reactivated Users
Meta wants a scorecard for monthly reactivated users. Count how many users logged in during a month after being inactive in the previous month. Return login_...
Company labels are directional practice context, not official interview guidance.
Objective
Practice query basics through a Meta-tagged business scenario.
Approach
Use this track to improve speed, edge-case handling, and accuracy under timed conditions.
Company context
Company labels are directional practice context, not official interview guidance.
Meta wants a scorecard for monthly reactivated users. Count how many users logged in during a month after being inactive in the previous month. Return login_month and reactivated_users sorted by login_month.
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