Agree with sigod. It feels too easy to be a 6.

Honestly, this kata feels too easy even for 6 kyu. Maybe it should be ranked as 7 kyu.

thank you!
I've removed the sample example. Also, the array can also contain integers within strings [1,2,'3',4,'5']

Concurrency/Parallelism! I completely missed those. Once the new sandboxed kata environments are supported we intend to enable concurrency.

Yeah I incorrectly ranked that one. I think this was one of the earlier rankings made, before we had a decent context of difficultly between challenges. We are still working out the specifics on the ranking process to prevent this from happening in the future.

We are just starting a new google group to discuss things such as this. Check out https://groups.google.com/d/topic/codewarsdojo/coa2DCcuxh0/discussion.

I just added additional clarification to the description.