Longest Distinct Run
Given an array `arr`, return the length of the longest contiguous subarray in which every value is distinct.
Examples
in: arr = [1,2,1,3,4,3]
out: 4
[2,1,3,4]
in: arr = [7,7,7]
out: 1
any single element
Constraints
- 0 <= len(arr) <= 10^5
- -10^9 <= arr[i] <= 10^9
Hints