When the Hours Touch

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

medium

Seniority

mid

Problem

A driver toggles availability throughout a shift, and our status export logs each online stretch as a `[start, end]` pair of timestamps in seconds (carrying sub-second fractions), unsorted and frequently overlapping because a flaky app reconnects mid-session. Collapse these into the distinct windows the driver was actually online, treating two stretches that overlap or meet exactly end-to-end as one continuous window. Return the windows sorted by start time.

Summary

Two sessions that overlap are really one. Find the windows a driver was actually online.

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