LinkedIn Software Engineer interview questions

Recruiter contacted me via LinkedIn, set up a technical phone screen. Interviewer had a strong accent and it was hard to understand him. There was a lot of noise on the call (people talking in the background) which was very distracting. The interviewer asked me to start coding before I had finished brainstorming an optimal solution. The code was not as elegant as it could be, but it was O(n) and constant space, which is the best time and space complexity for the problem I was given. I ended up finishing early and the interviewer asked me if I could make the solution more elegant. I started brainstorming again and he told me to stop, leaving 10 minutes for questions. I got a message from the recruiter saying that it wasn't a good match at this time. I asked for additional feedback but received no response to my email. Main reasons for rating this a negative experience: -Interviewer asked me to start coding before I had developed an optimal solution; there was still plenty of time -There was a lot of background noise and talking during the call, which was very distracting -He cut the interview short when there was still time remaining, instead of giving me the time to optimize further -The recruiter ignored my last email, was not more transparent about the reasons it wasn't a good match