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.