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rirakkumya/foldLeft.scala

Created February 1, 2012 08:11
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fold関数の使い方
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foldLeft.scala
def hb(i1:String,i2:String) = (i1 zip i2).foldLeft((0,0)){(a, b) => if(b._1 == b._2) (a._1+1,a._2) else (a._1,a._2+1)}
def s(n:Int) = (1 to n).foldLeft(List("")){(l,_) => List("A","C","G","T").flatMap(x => l.map(_ + x))}.filter(_.contains("AAG"))
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