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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Straddling-checkerboard/Scala/straddling-checkerboard.scala Normal file
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object StraddlingCheckerboard extends App {
private val dictonary = Map("H" -> "0", "O" -> "1",
"L" -> "2", "M" -> "4", "E" -> "5", "S" -> "6", "R" -> "8", "T" -> "9",
"A" -> "30", "B" -> "31", "C" -> "32", "D" -> "33", "F" -> "34", "G" -> "35",
"I" -> "36", "J" -> "37", "K" -> "38", "N" -> "39", "P" -> "70", "Q" -> "71",
"U" -> "72", "V" -> "73", "W" -> "74", "X" -> "75", "Y" -> "76", "Z" -> "77",
"." -> "78", "/" -> "79", "0" -> "790", "1" -> "791", "2" -> "792", "3" -> "793",
"4" -> "794", "5" -> "795", "6" -> "796", "7" -> "797", "8" -> "798", "9" -> "799")
private def encode(s: String) =
s.toUpperCase.map { case ch: Char => dictonary.getOrElse(ch.toString, "") }.mkString
private def decode(s: String) = {
val revDictionary: Map[String, String] = dictonary.map {case (k, v) => (v, k)}
val pat = "(79.|3.|7.|.)".r
pat.findAllIn(s).map { el => revDictionary.getOrElse(el, "")}.addString(new StringBuilder)
}
val enc = encode(
"One night-it was on the twentieth of March, " + "1888-I was returning"
)
println(enc)
println(decode(enc))
}