Question
Parse one line of RFC-4180-style CSV into a list of field strings. Fields are comma-separated. A field may be double-quoted; inside a quoted field, a comma is literal and a doubled quote ("") encodes a single quote character. Quoted fields may themselves be empty. Assume the input is a single well-formed record with no newlines. Return the list of decoded field values (quotes stripped, escapes resolved).
parse_csv_line(line: str) → list[str]["a,\"b,c\",d"]out["a","b,c","d"]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.