Question

How to check if a string is a rotation of another string in Scala

Answer 1

object RotationChecker {
  def isRotation(s1: String, s2: String): Boolean = {
    (s1.length == s2.length) && ((s1 + s1).contains(s2))
  }

  def main(args: Array[String]): Unit = {
    var s1 = "abbc"
    var s2 = "cabb"
    
    println(if (isRotation(s1, s2)) "yes" else "no")

    s1 = "abbc"
    s2 = "bbac"
    
    println(if (isRotation(s1, s2)) "yes" else "no")
  }
}

   
   
/*
run:

yes
no
 
*/

 

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