Meta Intern interview questions

Applied online and emailed a recruiter. Got a 45 minute technical phone interview - coding using coderpad. The interviewer was very nice. Told what he does in FB. He said in the beginning that syntax need not be correct. Fairly average question. Coded a simple solution - the exact same as given in cracking the coding. Interviewer seemed satisfied. Asked for time complexity analysis. I fumbled a bit there. But gave the answer. Then I was asked to improve my answer. He gave a tip. So I got the answer. I coded the new solution but missed some edge cases. 45 minutes got over!

I submitted my resume, got an email, and scheduled an interview for about 3-4 weeks out. From there, it was a phone interview solely. The interviewer was on speakerphone and was, unfortunately, difficult to understand (I had to ask for him to repeat almost every 3rd-4th sentence; this caused a lot of confusion in the interview).