Execution timed out is an error. You did not pass everything on the test; there were more tests your solution did not have time for.

everything was passed on the test, however when i attempt the code the results "STDERR
Execution Timed Out (12000 ms)".
and on the large_random_test was turned orange when there's no error on it.

He probably tried to figure something out for himself, not to actually improve the code.
In case you do this in the future, your code also gets saved when you just press save. Publish is only if you want to make your code (normally with improvements) public.

What's the point of this? You included my code but didn't improve it. You just added some junk that makes it even less readable.