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Grokking the Coding Interview Patterns

Solution: Merge Intervals

Understand how to merge overlapping intervals by sorting them and iteratively combining where overlaps occur. This lesson teaches you to optimize overlap detection and merging to produce a list of non-overlapping intervals using a sorting-based approach, improving both time and space efficiency for solving interval problems in coding interviews.

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Statement

We are given an array of closed intervalsclosedintervals called intervals, where each interval has a start time and an end time and is represented as intervals[i] = [starti, endi]. Your task is to merge all the overlapping intervalsOverlapping intervals are two or more intervals with at least one common point in time. and return an array of the resulting non-overlapping intervals that cover all the intervals in the input.

Constraints:

  • 1≤1 \leq intervals.length ...