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Answers and rating deltas for
Ruby: group_by operation on an array of hashes
| Author | Votes | Δ |
|---|---|---|
| Sagar Pandya | 2 | +0.83 |
| Cary Swoveland | 2 | +1.01 |
| A moskal escaping from Russia | 1 | -1.30 |
| stevensonmt | 0 | -4.29 |
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