AMD interview questions

I interviewed for 2 PM positions and both times HRs were lousy and pathetic. One HR told me that since they cannot sponsor for this position my only option is to marry an American citizen. The other HR never responded back after multiple follow-ups. Such a pathetic experience with this company. Both HRs mentioned that they were called back from their retirement. Why would you want such people back in your company when you can hire fresh talent, they might have less experience but they would definitely not be so unprofessional like these older HRs.

4 technical rounds 1st technical round on basics of C programming 2nd technical round on DSA and algorithms 3rd technical round on C++ and advanced C++ 11/14 4th round on Multimedia topics