First, they gave me a phone interview and asked me two questions. Then, they told me I still need to pass an OA. The OA was pretty easy (maybe because I am a new grad). Finally, I came for an onsite interview. In total, there were four interviews, each with one question. The recruiters were friendly and the questions were not hard (although I failed three of them).

Shuffle an array. Make sure every element is not in its previous position.