Meta Intern interview questions

After applying online, I was offered an internship position in Seattle for 3 month. After a first HR interview checking my background, my programming language knowledge (rate yourself in 7 or 8 different languages) and my professional goals, a technical interview was scheduled with an engineer at the HQ. I was asked to code a certain algorithm in 30 minutes in a phone screen interview.

Got great recruiter - fixed me up with interviews in a week. After first interview got answer after two days, after second one after 20 minutes. In both interviews they asked for testing of solution - just going through example to see if solution works.