Choosing the Right Data Structure

You have now built eleven data structures and solved problems with each one. In an interview, none of that helps until you can answer one question quickly: which structure does this problem want?

Interviewers watch that decision closely. Picking the right structure is most of the solution, and picking the wrong one usually shows up two minutes later as code that cannot meet the required complexity. This lesson gives you a way to make the choice on purpose instead of by habit.