A recruiter contacted me on LinkedIn to apply for a job at Microsoft in Prague.

First, I had a phone interview with her.

Then, a technical interview via Skype. I was given one task.

After that, I was invited for onsite interviews.

There, I had three separate interviews:

• Each interviewer gave me a task to implement an algorithm.
• They also asked some standard HR questions.

You are given two lists, where each element is an integer less than 10. You are asked to create a third list that represents the sum of these two.

For example: list1: 1 -> 2 -> 3 list2: 7 -> 7

123 + 77 = 200 ----> list3: 2 -> 0 -> 0

You are given a list of n elements (integers with values between 0 and 99 that can appear more than once in the list). You should find the element that appears most often, and you are allowed to go through the list just once.