Amazon Junior Developer interview questions

Had a first-round phone screening, and it was the group anagrams leetcode question. I was doing it based on memory more than actually solving it, and I think the recruiter figured it out because he was questioning every line of code that I wrote. Eventually solved the problem but recruiter was not satisfied at all.

There are multiple interview stages, depending on which round you are on will determine what kind of interview it will be. For the first round I had to do 2 medium level questions that I recognize from leet code. They send you a link and you have to solve the problems within a designated time limit. I heard that if you dont get 100 completion within the allotted time frame you wont get a call back for the next step.