Design
Meeting Room Booking System
Design a system that lets employees book meeting rooms, checking for conflicts across a shared calendar.
01 - Why interviewers ask this
It's a clean interval-scheduling problem at a manageable scale — interviewers use it to see whether you reach for an efficient overlap-check instead of comparing every booking to every other booking.
02 - Where this system exists in the real world
You interact with this design every day.
Outlook/Google Calendar room booking
Co-working and office space management platforms
Hospital operating room scheduling
03 - What you'll master
Solve this once. Know it forever.
Implement efficient interval overlap detection
Support recurring bookings cleanly
Model multi-building, multi-room hierarchies
04 - What you'll design
6 functional · 2 non-functional requirements.
List available rooms for a given time range and capacity
5 more requirements inside
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05 - Companies that ask this
You may face this exact question in your next interview.
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