Reverse Array In Place

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Your question is Reverse Array In Place. Start with the requirements on the right.

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Problem

At Spotify, you need to reverse a list of values without allocating another array. Given an array arr, modify it in place so its elements appear in reverse order.

Formal Specification

Input: A list of integers arr
Output: The same list after being reversed in place
Requirement: Do not create a second array for the result

Constraints

0 <= len(arr) <= 10^5
-10^9 <= arr[i] <= 10^9
The array must be reversed in place
Do not allocate a second array for the final result

Function Signature

def reverse_array(arr):

Your solutionPython 3

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