Code RoomComparator violates transitivity
MediumPrep Room Coding #2094

Comparator violates transitivity

Code reviewCode quality & reviewMid–Senior~16 min

Review this Go sort that ranks posts by score descending, breaking ties by newest first (larger createdAt).

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.

0:00 of about 16 min
Mark a line and say what kind of problem it is.0 findings
1sort.Slice(posts, func(i, j int) bool {
2 if posts[i].Score != posts[j].Score {
3 return posts[i].Score > posts[j].Score
4 }
5 return posts[i].CreatedAt >= posts[j].CreatedAt
6})
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.