It was an accelerated hiring day, with about 15 candidates.

We started with a written test. I managed to pass it and got an interview. After passing that as well, I had a second interview.

Those who passed the second interview then proceeded to an HR interview and a job offer.

In the first interview, I was asked to return all subsets of a given set. The follow-up question was to write a function that gets a set and an index and returns a unique subset.

In the second interview, I was given a function r5() that returns a random number between 1 and 5 with uniform probability. With that function, I needed to build r7() that returns a random number between 1 and 7 with uniform probability.