# Leetcode 2121: Intervals Between Identical Elements

In this problem, we should return an array which, for each index, contains the sum of intervals for this index, for the indices that contain the same value as arr[i]. This is the problem statement:

You are given a **0-indexed** array of `n`

integers `arr`

.

The **interval** between two elements in `arr`

is defined as the **absolute difference** between their indices. More formally, the **interval** between `arr[i]`

and `arr[j]`

is `|i - j|`

.

Return *an array* `intervals`

*of length* `n`

*where* `intervals[i]`

*is **the sum of intervals** between *`arr[i]`

* and each element in *`arr`

* with the*…