Recruiter reached out to me mid April to the email address I used to register for codejam and asked for resume and transcript. They scheduled a call and explained the process. Sent the oa after I applied to the winter 2022 position. I dont remember the questions but I used brute force on both of them so I think your code just has to work. Passed so I scheduled interviews. Had 2 45 minute back to back. Recruiter emailed and said that they needed more data points and scheduled one more 45 minute interview. The question was straight off leetcode but it happened to be the one i skipped because it was too hard, so I fumbled and wrote code just for the trivial case.