LINE Machine Learning Engineer interview questions

One on two interview in LINE corporation. In the small meeting room, first I introduce myself and why I apply to LINE. I was able to use my own computer. After this, some question from LINE interviewer.

I applied on Stackoverflow and got a mail confirming that my profile was shortlisted. A week later got a mail to attempt a test in a week. Questions were based on 2 basic programming task like summation and other 3 were ML related linear, CNN and classification. After a week I received a mail that they are going ahead with other candidate. I asked for a feedback but did not get any reply