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| package pl.japila.scalania.s99 | |
| object S99_P03 { | |
| def nth[T](k: Int, ts: List[T]): Option[T] = { | |
| if (k > 0) ts match { | |
| case a :: tail => nth(k - 1, tail) | |
| case Nil => None | |
| } | |
| else if (k == 0) Some(ts.head) | |
| else None | |
| } |
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