Solution to rosalind exercise 'Motif Finder'

motif_finder.scala

object MotifFinder {
  def find(text: String, motif: String) = {
    var result = Seq[Int]()
    for (i <- 0 until text.length - motif.length) {
      var aheadSS = text.slice(i, i + motif.length)
      if (aheadSS == motif) {
        result = result :+ (i + 1)

      }
    }
    result
  }

  def main(args: Array[String]): Unit = {
    val input = "GAGAAGTTCGGTTCGTCGTCTGAGAAGTACAGAACTGGGAGAAGTTGAGAAGTACTGAGAAGTCTTTGTGGAGAAGTGAGAAGTTTAGGAGAAGTCGAGAAGTGGAGAAGTCGAGAAGTAGAGAAGTAACTATGAGAAGTCACCGGAGAAGTGGGAGAAGTCGAGAAGTCGGAGAAGTCATGTTCGAGAAGTTTTAAATGAGCTGGAGAAGTGCGAGAAGTAGAGAAGTGAGAAGTTGAGAAGTAGAGAAGTCATGAGAAGTTCAGAGAAGTGAGAAGTGCGAGAAGTACAGAGAAGTCATGAGAAGTCCCCGCGAGAAGTGACCAAGAGAGAAGTTGACGGAGAAGTGAGAAGTGAGAAGTGAGAAGTATGAGAAGTGAGAAGTGGGCGGGCGAGAAGTGAGAAGTGAGAAGTGACACGGGGAGAAGTAATGAGAAGTTGAGAAGTTGAGAAGTGAGAAGTGAGAAGTGAGAAGTTAGAGAAGTGCAGAGAAGTTGCCAGAGAAGTACGTGCGACGCTAGTCGAGAAGTGTAGAGAAGTTGAGAAGTGAGAAGTTGAGAAGTGAGAAGTGGAGAAGTGCGTTGAGAAGTATCAGTGAGAAGTCGAGAAGTATGATCGAGAAGTGAGAAGTGCGAGAAGTGGGGAGAAGTGCTACACCACGAGAAGTAGCTAGCGAGAAGTTCACGATGTGAGAAGTGAGAAGTTGCACAGGAGAAGTTAGAGAAGTAAGGGAGAAGTGAGAAGTCGAGAAGTGAGAAGTAGAGAAGTGAGAAGTGCGAGAAGTGAGAAGTGGAGAAGTGTGAGAAGTGAGAAGTTAAGAGAAGTGTGAGAAGTGTCGGGAGAAGTGAGAAGTGAGAAGTTGAGAAGTATGAGAAGTGAGAAGTAGGAGAAGT"
    val subscript = "GAGAAGTGA"

    val res = MotifFinder.find(input, subscript)
    res.foreach(e => print(s"$e "))

  }
}