Amazon Software Engineer interview questions

I failed in the phone interview. It has two phone interview. One after the other one. Two independent interview. I'm kind of lucky, they asked me a same question. "How to find the position of a number in an array." If you read the interview book before, the questions they asked are not difficult. But I didn't read it before. So I'm responsible for my fail.

I had two phone interviews. The first one was basic and we opened a code editor and worked through an anagram problem. The second one the guy wasn't nearly as enthusiastic and we just worked through a solution on the phone. Know your Big O and data structures, and basic algorithms.