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Non-overlapping Intervals

MediumIntervals

Given an array of intervals where intervals[i] = [start_i, end_i], return the minimum number of intervals you need to remove to make the rest of the intervals non-overlapping.

Example:

Input: intervals = [[1,2],[2,3],[3,4],[1,3]]
Output: 1
Explanation: [1,3] can be removed and the rest are non-overlapping

Constraints:

  • 1 <= intervals.length <= 10^5
  • intervals[i].length == 2
  • -5 * 10^4 <= start_i < end_i <= 5 * 10^4