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  1. object Main {
  2.  
  3.   def incLast(list: List[Int]): List[Int] = {
  4.     def incLastTailRec(list: List[Int], acc: List[Int]): List[Int] = list match {
  5.       case Nil => acc
  6.       case x :: Nil => List(x + 1)
  7.       case x :: xs => incLastTailRec(xs, x :: acc)
  8.     }
  9.     incLastTailRec(list, Nil)
  10.   }
  11.  
  12.   def main(args: Array[String]): Unit = {
  13.     println(incLast(List.range(1, 2999999)).last)
  14.   }
  15. }
Success #stdin #stdout 4.01s 322240KB
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stdin
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Standard input is empty
stdout
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2999999
https://ideone.com/69NTTd
language:
Scala (scala 2.12.8)
created:
10 years ago
visibility:
public

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