Amazon Software Development Engineer interview questions

It is a phone interview about 45 minutes. It is technical. 1. First talk about your most challenging project. 2. Talk about several data structures such as tree. 3. Code test. It depends. I heard that the difficulty of this part in a large range. Someone will get a very hard question. But someone will get a very easy one. For me, I think it is a very easy question. 4. You can ask the question about their company or culture. To be honest, it is not a bad experience. The only bad thing is that the whole process cost much time.