Merge Intervals (Medium)

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Merge Intervals

Medium

Arrays

Given an array of intervals where intervals[i] = [start_i, end_i], merge all overlapping intervals, and return an array of the non-overlapping intervals that cover all the intervals in the input.

Example 1

Input:intervals = [[1,3],[2,6],[8,10],[15,18]]

Output:[[1,6],[8,10],[15,18]]

Since intervals [1,3] and [2,6] overlap, merge them into [1,6].

Example 2

Input:intervals = [[1,4],[4,5]]

Output:[[1,5]]

Intervals [1,4] and [4,5] are considered overlapping.

Constraints

1 <= intervals.length <= 10⁴
intervals[i].length == 2
0 <= start_i <= end_i <= 10⁴

solution.js

Test Cases (2)

Test Case 1

Input:

[[1,3],[2,6],[8,10],[15,18]]

Expected Output:

[[1,6],[8,10],[15,18]]

Test Case 2

Input:

[[1,4],[4,5]]

Expected Output:

[[1,5]]