Interval Problem Requiring Sorting by Start (or End)

Problem: Interval Processing (Sort by Start or End) Given a list of integer intervals intervals, with each interval written as [start, end] and satisfying start <= end, combine every pair of intervals that overlap. Return the resulting merged intervals in ascending order of their start values. An overlap includes intervals that meet at an endpoint. Example 1 Explanation: [2, 5] intersects [4, 8], so they become [2, 8]; [11, 13] remains separate. Example 2 Explanation: After…