Qualcomm Engineer interview questions

I got through employee referral. First is coding round. Had questions from beginner level to advanced. After 1 week of giving written, i got mail inviting for 1:1. On site interview took place on 3rd dec for whole day and consisting of 4 round. They covered all the topics in C and i had really great experience, Covered almost everything from post increment pre increment arrays pointers strings sorting DS alogs OS literally everything. After 1 week i got mail from HR saying interview is positive and send a questionnaire regarding usual stuff HR compensation title notice period and all. Very bad HR process(Totally a negative outlook). Till date whenever i contact them they says its still in process and its been almost 40 days no offer yet . still waiting

The process was very good and the interviewers were very polite. The interview questions needed some thinking and they were very simple logical questions if I remember now. Overall this is the best interview I have ever given.