Affinity interview questions

The worst interview experience. The interviewer was a grad student who has just been in company for 2 months. He just had question written on coderpad and asked me to write the answer without even explaining. I implemented the solution and it ran fine with the best time complexity possible. During interview, he told me to keep on coding as his internet has some problem so he won't be able to see my response. He didn't even ask what my thought process was or didn't even ask me to explain the solution I wrote. Even though I answered the complete question, they send a rejection. Seriously , the worst interview ever. Don't apply and waste your time here.

1st call w/ head of sales who is very junior, IMO. I was asked a series of questions that weren't that challenging. I then booked an onsite for the following week where I was to prepare a presentation with a deck he provided me. Naturally, I started prepping that night. He then set up a call with one of his AE's for the next day, the AE asked me a series of the SAME EXACT questions except he was clearly distracted and said he was traveling from point a to point b. I could tell the call wasn't going too well and that I wasn't vibing with this guy, the call ended. Later that day, my onsite was removed from my calendar without any notice, phone call or email. I had to reach out to find out more and was told I wouldn't be moved on to the next stage and received negative feedback which was fine. What isn't fine and what I find very unprofessional is the fact that interviewer #2 did not give me his full attention during the call and that they scheduled an onsite before call #2 had even been completed. Wrong sequence, rookies! What these tech bruhs don't realize is that we too are interviewing the company to learn if it's a good fit for us too and it's clear I dodged a bullet.