I applied online through their website and received a call from the recruiter to go over my resume and experience. This went well, and they sent me an online coding problem. I wrote a correct solution to the problem, but it could have had a decent improvement in space usage.

After eight days, I emailed the recruiter to inquire about the interview process. I did not receive a response, so I emailed again eleven days later. It has now been seven days since that email, and I still have not received an update as to whether or not I am still a candidate for the position. This has been unprofessional and disappointing.

Write a function to reverse all the words in a string separated by spaces. There will be k spaces, and k + 1 words.