Question
Facilities needs to chase employees who never picked up a badge. `employees` rows look like "id,name" (ids and names are distinct); `badge_ids` is a list of employee ids that already have a badge (it may contain ids not in the employee list). Return the names of employees whose id is NOT in `badge_ids`, sorted alphabetically. Example: employees ["e1,ava", "e2,raj", "e3,mia"] with badge_ids ["e2"] gives ["ava", "mia"].
missing_badges(employees: list[str], badge_ids: list[str]) → list[str][["e1,ava","e2,raj","e3,mia"],["e2"]]out["ava","mia"]State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.
Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.