Meta Software Engineer interview questions

I meet with a recruiter at my school campus. They seemed interested in my resume and they emailed me back after few days for an on campus interview. The interview was very unprofessional. The employer showed up the the interview eating a buretto.

Phone screening with human resources, as a first assessment. Then first stage of phone coding interview using codepad focused on algorithmic question.The inteview lasts 45 minutes and you are presented with a problem immediately that you need to solve as fast as you can.