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Scala rec test
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| scala> def selectTailRec(items : List[Int], removeIrems : List[Int], removeItem : Int, roop: int) : (List[Int], List[Int]) = { | |
| | if(roop > 0) { val newList = items.filter(i => i != removeItem) | |
| | selectTailRec(newList, removeItem :: removeIrems, newList.head, roop -1)} | |
| | else (items, removeIrems) } | |
| warning: there were deprecation warnings; re-run with -deprecation for details | |
| selectTailRec: (List[Int],List[Int],Int,int)(List[Int], List[Int]) | |
| scala> selectTailRec(List(1,2,3,4,5,6,7,8), Nil, 7, 3) | |
| res2: (List[Int], List[Int]) = (List(3, 4, 5, 6, 8),List(2, 1, 7)) |
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| scala> def selectTailRec(items : List[Int], item : Int, roop : Int) : List[Int] = { | |
| | if(roop > 0) selectTailRec(items.filter(i => i != item), items.filter(i => i != item).head, roop-1) | |
| | else items | |
| | } | |
| selectTailRec: (List[Int],Int,Int)List[Int] | |
| scala> selectTailRec(List(1,2,3,4,5,6,7), 3, 3) | |
| res0: List[Int] = List(4, 5, 6, 7) | |
| scala> selectTailRec(List(1,2,3,4,5,6,7), 3, 5) | |
| res1: List[Int] = List(6, 7) |
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scala> def selectTailRec(items : List[Int], removeIrems : List[Int], removeItem : Int, roop: int) : (List[Int], List[Int]) = {
| if(roop > 0) { val newList = items.filter(i => i != removeItem)
| selectTailRec(newList, removeItem :: removeIrems, newList.head, roop -1)}
| else (items, removeIrems) }
warning: there were deprecation warnings; re-run with -deprecation for details
selectTailRec: (List[Int],List[Int],Int,int)(List[Int], List[Int])
scala> selectTailRec(List(1,2,3,4,5,6,7,8), Nil, 7, 3)
res2: (List[Int], List[Int]) = (List(3, 4, 5, 6, 8),List(2, 1, 7))