You are given an array of intervals, where intervals[i] = [start_i, end_i] and each start_i is unique.

The right interval for an interval i is an interval j such that start_j >= end_i and start_j is minimized. Note that i may equal j.

Return an array of right interval indices for each interval i. If no right interval exists for interval i, then put -1 at index i.

Example 1:

Input: intervals = [[1,2]]
Output: [-1]
Explanation: There is only one interval in the collection, so it outputs -1.

Example 2:

Input: intervals = [[3,4],[2,3],[1,2]]
Output: [-1,0,1]
Explanation: There is no right interval for [3,4].
The right interval for [2,3] is [3,4] since start₀ = 3 is the smallest start that is >= end₁ = 3.
The right interval for [1,2] is [2,3] since start₁ = 2 is the smallest start that is >= end₂ = 2.

Example 3:

Input: intervals = [[1,4],[2,3],[3,4]]
Output: [-1,2,-1]
Explanation: There is no right interval for [1,4] and [3,4].
The right interval for [2,3] is [3,4] since start₂ = 3 is the smallest start that is >= end₁ = 3.

Constraints:

1 <= intervals.length <= 2 * 10⁴
intervals[i].length == 2
-10⁶ <= start_i <= end_i <= 10⁶
The start point of each interval is unique.

Find Right Interval

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