8000 Solve MITS 2024 day 1 · sim642/adventofcode@dd114cd · GitHub
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Solve MITS 2024 day 1
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‎src/main/resources/eu/sim642/mits2024/day1.txt

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Kelluke: 1.67
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ForMe: 1.93
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Dynamit: 0.97
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mfKaDynamituForMeForMedeuDDdFyyeiyoeFKyDmfKDynamitForMeKKellukepForMeuupFFamDynamitDynamitumuayForMetKellukeDKellukeoKellukemKellukeuDfyeForMeeFaKellukeDprpKellukeaMyyKitpytFdeMKyKmDynamitFatKellukeuForMemDynamitDynamitriDynamitdaMMDynamitotDynamitKioydrdeirfpDynamitrFuyuKmrdKellukeKelluketKoFoFForMedyKaaeriKellukeotMymDynamitKellukefodpDuFDyFtrdDMurpForMeDynamittDynamitDynamitepKaForMeimaDynamitdaopKForMeuDynamitfdopueoDynamitForMeuiDynamityiyDmfForMeyoDKellukeDynamitapDynamitKmForMeDynamitMDynamitymtKellukeForMeufumFfyiKirea

‎src/main/scala/eu/sim642/mits2024/Day1.scala

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package eu.sim642.mits2024
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import eu.sim642.adventofcodelib.IteratorImplicits.*
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object Day1 {
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case class Input(kelluke: BigDecimal, forMe: BigDecimal, dynamit: BigDecimal, order: String) {
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def orderTotal: BigDecimal = {
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val it = """(Kelluke|ForMe|Dynamit)""".r.findAllMatchIn(order)
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val freqs = it.groupCount(_.matched).withDefaultValue(0)
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freqs("Kelluke") * kelluke + freqs("ForMe") * forMe + freqs("Dynamit") * dynamit
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}
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}
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def parseInput(input: String): Input = input match {
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case s"Kelluke: $kelluke\nForMe: $forMe\nDynamit: $dynamit\n$order" => Input(BigDecimal(kelluke), BigDecimal(forMe), BigDecimal(dynamit), order)
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}
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lazy val input: String = scala.io.Source.fromInputStream(getClass.getResourceAsStream("day1.txt")).mkString.trim
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def main(args: Array[String]): Unit = {
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println(parseInput(input).orderTotal)
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}
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}

‎src/test/scala/eu/sim642/mits2024/Day1Test.scala

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package eu.sim642.mits2024
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import Day1._
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import org.scalatest.funsuite.AnyFunSuite
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class Day1Test extends AnyFunSuite {
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val exampleInput =
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"""Kelluke: 1.64
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|ForMe: 1.89
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|Dynamit: 0.92
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|odForMedFuDrDynamiti""".stripMargin
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test("Example") {
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assert(parseInput(exampleInput).orderTotal == 2.81)
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}
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test("Input answer") {
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assert(parseInput(input).orderTotal ==
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74.64)
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}
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}

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