Shopee Backend Engineer interview questions

The interview took approximately 90 min. We went through a basic question in my language of choice. The interviewer asked me to improve time and space complexity. Afterwards, I had the option to ask some theoretical questions. After 90 mins, I had the opportunity to ask questions to the reviewer.

The interviewer seems uninterested throughout the technical interview phase. When I replied to him with an answer, there were no facial cues to depict whether I was wrong or right. He muted himself halfway during the live coding portion maybe because he had his own work to do. All in all, not a very good experience