ByteDance Developer interview questions

Three technical & final HR round. The interview is done one by one so you need to pass the first interview to schedule the next. I failed the first one because I couldn't solve it in time due to the pressure. I was able to upsolve it in 5 mins after the interview though

Interview was well coordinated. HR was fast and efficient. Even though my schedule was a little bit packed during the interview process, the HR accommodated and tried her best to arrange a mutually open timeslot.