I had 2 HR screenings then a hackerrank technical interview in which after solving one exercise the interviewer wanted me to solve another one and even though the interview was supposed to last 90 minutes he cut it short at 60 and that was it. I was not able to finish the second exercise. So what do they want?

First Round: regular HR round talking about the company, and relevant previous experiences Second Round: 90 minutes live coding. Allowed to read docs or ask questions, but can't use AI or google the solution. Difficulty is a bit hard to judge, because the problems were the type where knowledge of specific patterns is required, and that determines whether it's hard or trivial. Style of coding and a compact and "elegant" solution were emphasized over relevant skills, or thought process. There was no followup or any feedback after the second round.