- Given the set of ranges and maximum range, find the minimum number not in that range. For example if input is ((2, 3), (5,9), (10, 15)) and max range is, 15, the output should be 1 as this is the minimum number not in that range - Calculate the height of BST (Interviewer told me they use this algorithm daily on their job :-|) - Given the number of floors and available parking spaces on each floor, write an algorithm to assign parking and update the spots when car checks out - General questions on values and your past experiene with it.