I had, literally, the exact same test. Only really missed the bit counting as I brute-forced it (phone screen after all). Was interviewing for a similar posit

I had, literally, the exact same test. Only really missed the bit counting as I brute-forced it (phone screen after all). Was interviewing for a similar position. Was not advanced after on-site. Had a mix of good and bad on-site people. Interviewer quality, viewpoint, attention all factor in, and in about 1/2 the cases, I had a strong vibe from them that they were disinterested in the process/person. I could comment on whether or not I thought their process actually produced superior results or not, and how they would measure. I'll say it is at least a small step up from their previous brain teasers. Hopefully, they will continue to refine their processes.