Accepted into university for MS in CS but rejected by professor for research

I got accepted into a top 10 school for CS (Computer Science) but I was rejected by a professor with whom I wanted to work with. No feedback after resume submission, just "I found another student." If I can't find a professor that wants to work with me in something I'm interested in at a MS level, should I even attend? Or should I just try to write my own paper (sole author) and see what happens? I want the research experience for PhD applications in the future.