Interviewer literally only know how to speak Mandarin. Key techincal terms are also in Mandarin. Algorithm was staircase problem, but interviewer was verbally saying the whole problem with 0 sample cases. And pressured me whether do I know the problem before. Which is the weird part, if I do not know the problem, I should be trying to understand the problem and work out a brute force solution and subsequently optimised it, but it seems he was just blasting out a question with 0 sample cases and asking me to vomit the optimised answer immediately. It also felt like he was not interested in my thought process. The entire interview process was very unpleasant. My previous Binance attempt was much more friendlier