The Schedule Cleaner

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

Domain

Python

Difficulty

medium

Seniority

L4

Problem

You're consolidating playback sessions from a streaming service's event logs, where each session in `intervals` is a `[start, end]` timestamp pair that may arrive in any order. Collapse every run of overlapping sessions into one continuous span and return the spans sorted by start time. Sessions that only touch at an endpoint still belong to the same span, so `[1, 3]` and `[3, 5]` become `[1, 5]`.

Summary

Overlapping sessions. One clean line.

Practice This Problem

Solve this Python problem with real code execution. DataDriven runs your Python code in a real environment and grades it automatically.