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Answers and rating deltas for
Why can't I match a substring which may appear 0 or 1 time using /(subpattern)?/
| Author | Votes | Δ |
|---|---|---|
| bvr | 6 | +3.72 |
| codaddict | 2 | +0.02 |
| markijbema | 1 | -1.90 |
| ikegami | 1 | -1.96 |
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