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nelanka/mapmerge.scala

Created September 30, 2014 18:49
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Merge Maps
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mapmerge.scala
def mergeMaps[A, B](map1: Map[A, Set[B]], map2: Map[A, Set[B]]): Map[A, Set[B]] = {
(map1.toSeq ++ map2.toSeq).groupBy(_._1).mapValues(_.map(_._2).toSet).mapValues(_.flatten)
}
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