Uber Software Engineer(Internship) interview questions

Got a referral late December, recruiter contacted me early January about an opportunity at Uber ATG in early January and said interview process will consist of two rounds of technical phone interviews. Had first interview the next week, got contacted for second interview less than hour later, and then had second interview the week after. Received offer 2-3 business days after second interview. Overall, a very streamlined process that took less than a month.