LinkedIn Senior Android Developer interview questions

Got a message from a LI recruiter on LinkedIn. Was able to schedule the phone screen after a few days. Had the phone screen but it did not go so well. The question was a LeetCode one that seemed simple but can be actually tricky. It is classified as "Easy" on LC but I would call it "Medium". I coded up my idea and the interviewer said I was on the right track, but unexpectedly the interviewer said he or she was ending the interview and hung up on me without any reason given. I felt that was incredibly rude. Afterwards, I was told by the recruiter that they rejected me. I know it doesn't help, but I gave the recruiter the answers to the LeetCode questions asked after the interview anyway. I was told I could not reapply again for a year over only one LeetCode question. Terrible interview experience.