Cadence Design Systems interview questions

Review about the role and responsibilities. Not really interested in what I could bring as value add to the team and business. Lack of communicating back on outcome of interview even after emailing the internal recruiter. No feedback received. Very disappointing that such a great international companies handle such a poor communication towards their potential future employee or customer.

Technical and puzzle based. I got rejected in first round itself. Some question on C++ and one puzzle. Data structures like Trees. The interviewer just care about interview and not experience.