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Answers and rating deltas for
Why can find `Functor` instance for Tree but not for Branch or Leaf?
| Author | Votes | Δ |
|---|---|---|
| Andrey Tyukin | 4 | +2.02 |
| Dmytro Mitin | 0 | -2.02 |
Last visited: May 2, 2018, 1:43:01 AM