Cisco Developer interview questions

The interview comprised of 3 technical rounds. 1st round was an online hackerrank test round. I cleared it was called within 2 weeks for the interview. Then I had 2 technica rounds CV round and non CV round. Both were purely coding. I was asked to write programs on white board. I answered all the questions correctly in the first tound and was able to implement efficient solutions. In the second round though something weird happened. I was being interviewed by a guy who had a meeting with the director at that very point. So he was doing both the things at the same time. Asked me to implement 3 solutions overall. 2 of which I knew almost instantly as I had practiced a lot. I literally took a holiday specifically for that CISCO interview because I really wanted to be a part of the company and had worked really hard for the opportunity. The third question that I implemented was a cache in C. I used a hash map and coded it completely in c. I was not interrogated at all. Whatever it was ,I knew I was not wrong as hash map is an optimal way to implement a cache as it has constant time insertion, searching and retreival time. I knew that. Whenever I used to look at the interviewer he seemed busy with the computer as he had a meeting. The interview was over and I felt really great as I answered all the questions correctly that the interviewer asked me. Then I met the HR and she asked me if I the interviewer gave me enough attention. I told her straightway that the interviewer was definitely distracted, he even left the office 3 times. I told her that the interviewer managed both the things well as did not want to say bad things , also my interview went really well so I literally wasnt worried at all. She then said she would communicate the result. Till date no communication ,saw a NOT CONSIDERED flag as my application status on the portal. HORRIFYING EXPERIENCE. I emailed ghe HR explaining my situation, still have not received any email. The most horrible experience ever