HackerRank Software Engineer interview questions

The interview invite was automatically generated and consisted of a DSA question and a real wold example. The data structure question was fairly difficult as companed to the real world react based problem.

Somewhat fine, but had a problem with last minute rescheduling. Interview was rescheduled twice right before the original time and I was not consulted about the new time. Then, halfway through the full-loop, my interviews were cancelled without any word or reason. The HR person said they wanted to move forward with other candidates, but not until the day after, wasting my time. All in all, personnel was good but the recruiter was very sloppy.