35 lines
723 B
Scala
35 lines
723 B
Scala
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package day02
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class Day2 {
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/** Find solution for part1 */
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def solveP1(arr: Array[Int]): Int =
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{
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var i = 0
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while (arr(i) == 1 || arr(i) == 2)
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{
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arr(i) match {
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case 1 => arr(arr(i + 3)) = arr(arr(i + 1)) + arr(arr(i + 2)); i += 4
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case 2 => arr(arr(i + 3)) = arr(arr(i + 1)) * arr(arr(i + 2)); i += 4
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case _ => ()
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}
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}
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arr(0)
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}
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/** Find fuel needed and recursive fuel */
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def solveP2(arr:Array[Int]):(Int, Int) =
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{
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var tuple = (0, 0)
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for (i <- 0 to 99; j <- 0 to 99)
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{
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val copy = arr.clone()
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copy(1) = i
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copy(2) = j
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if (solveP1(copy) == 19690720) tuple = (i, j)
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}
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tuple
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}
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}
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