Apple Software Developer interview questions

The Interviewer asked me 2 coding questions in the screening round, one was merge interval and other was a varaition of LIS DP and later asked multi-threading and concurrency. The Interview kept getting postponed for some reason and later the scheduled after one week, Question difficulty was medium.

It took one hour and included some technical and profile-related questions. However, I haven't received any feedback even after a month, which highly suggests they may not provide any feedback at all.