Seq of Tuples

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Search tuple in sequence of tuples where second element has maximum for all sequence.


object CollectStudy extends App {

     val seqTup = Seq((1,1), (2,3), (3,5), (4,8), (5,7), (6,5), (7,3), (8,1) ,(9,8))
     println(seqTup)

     // solution 1
     val elmMax = seqTup(seqTup.map(x => x._2).indexOf(seqTup.map(y => y._2).max))
     println(elmMax)

     //solution 2
     val seqVals = seqTup.map(x => x._2)
     val maxVal  = seqVals.max
     val idxMax  = seqVals.indexOf(maxVal)
     val elm2Max = seqTup(idxMax)
     println(elm2Max)

     //solution 3 - get all maximums
     val elmMax = seqTup.filter{_._2 == (seqTup.map(y => y._2).max)}
     println(elmMax)
  
}

Output is 

List((1,1), (2,3), (3,5), (4,8), (5,7), (6,5), (7,3), (8,1), (9,8))
(4,8)
(4,8)
List((4,8), (9,8))

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