Reach Security interview questions

1. the 1st part of the interview is coding challenge on data transformation and even if the candidate gets most of it they are not given extra time over 20mins. Its either all or nothing with respect to the problem. 2.mysql or pandas language is not allowed even though recruiter mentioned any language can be selected and it is a data related problem. 3. if in 20 mins the candidate cant get the expected result ( all or nothing) the interviewer doesn't say another sentence nor anything about the company and abruptly ends the interview unlike what was motioned by recruiter( from the company) that rest of the interview time slot of an hour will be spent speaking about the company, product and the tech. i have never experienced this before so was a bit of a shock that after 20 mins if a candidate can't provide the exact expected result ( I was very close to the result, just one part was missing) they will not let you complete and end the interview.