Question

How to find the most common pair of characters in a string with Scala

Answer 1

object MostCommonPair_Scala {
  def main(args: Array[String]): Unit = {
    val str = "xzvxdeshaalzxzmdenlopxzxzxzaaqdewrzaaaapeerxzxz";
    
    val pairs = str.sliding(2).toList
    
    val pairCounts = pairs.groupBy(identity).view.mapValues(_.size).toMap
    
    val mostCommonPair = pairCounts.maxBy(_._2)._1

    println(s"The most common pair of characters is: $mostCommonPair")
  }
}




/*
run:
  
The most common pair of characters is: xz

*/

 

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