InterviewLegend

Intervals & Scheduling

Alex Chen24 min readUpdated 138 real interview reports

Intervals are a steady mid-tier family in Amazon's coding rounds. Two Premium questions both surface often enough to sit in Amazon's most-asked set, and they almost never arrive as the clean LeetCode statement. An Amazon interviewer wraps the interval in a business story and waits to see whether you can pull the real problem out of it.

Spot the interval underneath and the toolkit shrinks. Sort by start time, then either fuse neighbors that overlap or count how many run at the same moment. Two skeletons cover nearly all of it.

What's inside
  • 2 problems, worked step by step
  • 5 diagrams
  • about 24 min

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What candidates walked out with, from 20,000+ reports, forum threads behind logins and write-ups in Chinese. Then solved step by step.

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19 coding · 6 system design · 44 behavioral questions

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