I would say it was probably the worst screening I've seen in many years.
Basically, the problem was that the guy picked a loud room for the Skype interview (probably the kitchen). For an hour, there were talking and laughing people in the background, people washing cutlery, and people walking around, and you could hear their every step very well.
It didn't help to focus on the problem in the end.
Some string processing.
It would not be fair to share.
The following metrics were computed from 2 interview experiences for the Airbnb Software Engineer role in Russia.
Airbnb's interview process for their Software Engineer roles in Russia is extremely selective, failing the vast majority of engineers.
Candidates reported having mixed feelings for Airbnb's Software Engineer interview process in Russia.