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  1. object Main {
  2.   def main(args: Array[String]): Unit = {
  3.     val a = Array(0, 2, 5, 7, 3, 1, 5, 7, 3, 2, 3)
  4.     val result = a.zipWithIndex
  5.       .groupBy(_._1)
  6.       .toList
  7.       .map(_._2.map(_._2))
  8.       .map(indices => indices.max - indices.min)
  9.       .+:(0)
  10.       .max
  11.     println(result)
  12.   }
  13. }
  14.  
Success #stdin #stdout 0.54s 68996KB
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https://ideone.com/qI0row
language:
Scala (scala 2.12.8)
created:
3 years ago
visibility:
public

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