2022-12-01 19:53:03 +10:30
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import scala.collection.mutable.ArrayBuffer
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import scala.io.Source
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2022-12-01 20:00:08 +10:30
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val filename = "day1-input"
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2022-12-01 19:53:03 +10:30
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class Elf:
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var foodCalories = List[Int]()
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var totalCalories = 0
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def calculateTotalCalories(): Int =
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totalCalories = foodCalories.sum
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totalCalories
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@main def main() =
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val elves = ArrayBuffer[Elf](Elf())
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for (line <- Source.fromFile(filename).getLines)
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if line.isEmpty then
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elves.last.calculateTotalCalories()
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elves.addOne(Elf())
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else
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elves.last.foodCalories = line.toInt :: elves.last.foodCalories
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elves.last.calculateTotalCalories()
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// for (elf <- elves)
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// println(s"${elf.totalCalories}: ${elf.foodCalories}")
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// Part 1 solution: Total calories held by elf with the most total calories
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println(s"${elves.map(elf => elf.totalCalories).max}")
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// Part 2 solution: Total calories held by the top 3 elves
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println(s"${elves.map(elf => elf.totalCalories).sorted.takeRight(3).sum}")
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