Microsoft Software Engineer interview questions

Two quations: 1 - two rws need to find the road with minumum value. 2- how many switches we can do in a row of three colors of ball to make a series of same color/

Motivational interview only; I was asked about why I wanted to be a SE, what I was currently doing, etc. I never heard back after that... I wonder why. The manager was great. His name was Joe. He had seven cats in his house