Code Room
Code reviewEasy
Question
Review this dedup-and-preserve-order function.
What a strong answer looks like
Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix — specific and kind.
Learn the concepts
def dedup(items): out = [] for x in items: if x not in out: out.append(x) return outRun or narrate your approach, then ask the coach.