Amazon Software Development Engineer II interview questions

Recruiter reached out on LinkedIn asking about my willingness to engage in Amazon recruitment process. After I said yes I was given an email link to a Hackerrank challenge. This challenge had to be completed within 90 minutes of starting it.

Call with the recruiter and then an online test with 2 programming challenges to solve in 90 mins. All related to data structures and loops. Would be good fit for a recent graduate or someone that does data structures in their everyday job.