The company contacted me from the college career fair.

I was invited to an interview the next day.

During the interview, I was asked a couple of basic questions on algorithms and data structures.

I received a call for the next interview later that same day.

In the second interview, I was asked about Machine Learning concepts and presented with scenarios. I was then asked to apply the best algorithms to achieve better results.

I never heard from them again; there was no acceptance or rejection.

I emailed the interviewer asking for a status update, but I received no reply.

Four months have passed, and I have given up on this company ever replying to me.

Given a scenario of an online customer shopping, design a DB and ML algorithms to output fancier and better choices to the user to attract them to buy more.