Interview guides / ios

Merge intervals: iOS Interview Question

Merge intervals interview question with a clear example answer for iOS engineers. Practice with AceMobileInterview.

This is a common iOS interview topic: Merge intervals.

Below is a concise answer you can adapt in a real interview, then go deeper in the full AceMobileInterview track.

1. 1.Merge overlapping intervals. How would you implement this efficiently in Swift?

   Sort by start time, then fold: if the next interval overlaps the current merged end, extend the end; otherwise push a new interval. O(n log n) from sort. Discuss Comparable on a small Interval struct and why sorting first is required.