PS02: Duplicating zeros

Given a list of integers arr, modify it such that every 0 appears twice while maintaining the original list size. Modify the list in place.

Example 1:

Input: [1,0,2,3,0,4,5,0]
Output: None
Why?: After calling your solution, the input array is modified to [1,0,0,2,3,0,0,4].

How to submit

Complete the function duplicate_zeros under solution.py
Push your changes to master.
Your code must be readable, pylint checks will be run against each push.
Your code must pass all test cases. grader.py will be run against all input test cases inside test_cases/
Enjoy 💕!

Debugging

You can run a test case py running python grader.py < test_cases/TEST where TEST is the particular test case you want to run.