8 lines
318 B
Scala
8 lines
318 B
Scala
def stemAndLeaf(numbers: List[Int]) = {
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val lineFormat = "%" + (numbers map (_.toString.length) max) + "d | %s"
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val map = numbers groupBy (_ / 10)
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for (stem <- numbers.min / 10 to numbers.max / 10) {
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println(lineFormat format (stem, map.getOrElse(stem, Nil) map (_ % 10) sortBy identity mkString " "))
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}
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}
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