The interview was so simple that I got confused thinking that there must be some hidden concept being tested here that I couldn't understand immediately. I am disappointed that manipulating slices and maps made me look inexperienced golang dev.

After a miscommunication for two/three times, we scheduled the first call and it had to be with one, I interviewed with another person. Furthermore, after 30 mins call, I didn't get any response or feedback. Honestly, I don't understand why some companies afraid of giving any kind of feedback!