Two questions:
I solved the first question without using binary search and when I realised it required binary search, I blanked out lol. For the second, one it was a much easier version of the design browser history on leetcode. It sucks that I gave into panic for such easy questions but I did communicate my ideas very well and the interviewer was really nice to interact with!
Good luck out there and DO NOT give into stage fright like me lol.