Alibaba

I applied at the university career fair, and they said they would contact me soon. One week later, without email or anything, they called me at 1 AM in the morning while I was in the restroom.

I was asked three algorithm questions, but also some eight-part essay questions. One of the algorithm questions was very puzzling. I don't know what they were investigating. Halfway through the interview, the overall experience was not very good.

I was asked some data structure questions and need you to explain the answers in detail. I was also asked one Spring Boot question about the `@Bean` annotation, and I need to explain that answer in detail.