Laserfiche Intern Software Engineer interview questions

Went to a recruiting fair at the beginning of the year, got asked the difference between virtual functions and non virtual functions. Went on to a behavioral phone interview, mostly about my interests and past experiences, and what exactly I was looking for. I got emailed a couple of problems to solve (programming and problem solving) a couple of days later, which I had about four or five days to figure out. From there, I got an on campus interview with the CTO and a Senior Engineer. Had to program the solution to a problem on the fly, but it wasn't too bad. I screwed up quite a bit in terms of syntax, but I think they knew my algorithm skills were there.

On-campus, offline exercises, phone, on-site, I did it well at first rounds, but it was not easy when it comes to the onsite interview. Two interviewers, one technical problem with follow-ups and some behaviour questions at the end. I did not solve the problem and the interviewers did not give me any hint at all.