Amazon Software Development Engineer Intern interview questions

I applied twice, once in early October and once in late October, and I talked to them at a career fair in between those two dates. I did not get an email until the night of December 3rd, which invited me to interview on December 5th. Usually companies will invite you to choose a specific date that fit your schedule so I found it a little rude for them to schedule an interview less than 48 hours away. Luckily I was free at that time, but I did not have a positive image of the process. The two interviews were going to be back to back 45 min phone interviews that started on the hour, so 15 min break in between.