Continental interview questions

There were two interviewers. It was 30 minutes interview, basic C questions about pointers, global variables, static variables, matrices, and arrays. They asked about some bit manipulation tasks. Some questions about previous projects that I have worked on during university. Before the interview, it was a presentation about the company.

Grueling 2 hours interview, with case study test. The line manager promised to feedback after 3 days, but no feedback were made after 2 weeks. Eventually I received a short feedback because I chased the recruiter several times, but it did not reflect the interview impression at all.