Amazon Software Development Engineer interview questions

After not hearing back from the company for a couple of weeks, I finally received an email telling me that I will be having a phone interview the next day. They allowed me to choose between three time slots. All together, it was a 2 hr technical interview with two different interviewers. They used an online coding website so they interview can view your work

first phone interview with co-edit tool. then on-site, 5 people give question one by one, most not from common problem pool but not very hard to implement if your mind is clear.