PwC Auditing interview questions

I posted my resume on my university career center website. Within two weeks I received an email that I had been selected to interview on campus. The night before the interview PwC hosted a reception at a local hotel where we would be able to meet with associates and manager and have the opportunity to meet the interviewer. I was interviewed by an Audit partner, other people I spoke too were interviewed by managers. I found out a week later that I had been selected for a 2nd round, in office interview, the form put me up at the Ritz Carlton the night before the interview and I had to report to the PwC offices at 8:30 AM. The 2nd round consisted of various information sessions and 2 more interviews with managers and partners. Two weeks later they called me personally to tell me they could not give me an offer.