What is the next improvement after the first working version of sets?
What does good sets code look like?
What is the core rule behind sorting and grouping?
What is the main pitfall around sorting and grouping?
How should you explain sorting and grouping in an interview?
What is the best default for sorting and grouping?
What naming guidance fits sets?
What boundary guidance fits sets?
What data-shape guidance fits sets?
What failure handling lens fits sets?