We were there to answer your questions about the exam or anything in general.
We talked about different types of interviews. (And an exciting Mock Interview!)
Solutions to the mock coding interview question:
Simple (intuitive? but suboptimal) solution [0(n^2)]: https://pastebin.com/1j09Zsvm
Optimal solution [O(n)]: https://pastebin.com/XtEihi1k
Optimal solution [O(n)] - Brian's alternative: https://pastebin.com/iuwV47Je