Amazon Software Development Engineer (SDE) interview questions

it was good experience and the questions was medium level questions and i answered well but they rejected for not calculated time complexity correctly. rest of questions i answered very well.

Had three rounds, 1. Behavorial questions 2. Behavorial questions + Logic design question 3. Coding question The role is for a fresher position. You will be asked to improve the code, according to their requirements and explain with an example.