astereisk issue is fixed, thanks

That version doesn't have java version, do I merge this question with that? Or how do I proceed? How can I delete a language in a kata? If I delete javascript version so that this problem only comes for java solvers, what do you say?

aaah. my bad. I searched for the problem. didn't know that it is called reverse polish notation. Thanks for pointing out.

Following link has answer to your question, you may have already figured out though... this is for future seekers.

http://bkaestner.github.io/codewars-rules/#checking-user-code

Thanks matt c. I added the tests that check no critical lines are removed.

Hi, I updated the description, but not sure how I can implement a check to see if they have not removed any lines of code. I want to ensure that they don't remove "use strict". Can you help me out on how I can do that?

My code is partially doing faster than this, but I would go for this solutions hundred out of hundred times. I thought it will time out but it didn't. Good one.