Amazon Software Development Engineer I Intern interview questions

The interview process went by rather quickly. I submitted an application and I heard back within a week about setting up two 45-minute phone interviews that would be technical in nature. During the first interview, I was asked to write a few small programs. For example, one of the programs I was asked to write was a simple java program that would take in a base integer and an exponent and would calculate the exponentiation.The interviewer was greatly interested in how and where I could improve my initial write-up of the program to handle edge cases and non-standard inputs.

firstly they took a online test conducted through hackerrank and then 25 students were shortlisted ..then two technical iinterview rounds were there...... they questiojns regarding trees, algorithms, sortings questions, operating system.... interview was really nice and goes very smoothly if u know most of the things