2023 - Day06 - part 2 brute force (again)

src/main/kotlin/no/rodland/advent_2023/Day06.kt

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+package no.rodland.advent_2023
+
+import no.rodland.advent.Day
+import product
+
+// template generated: 06/12/2023
+// Fredrik Rødland 2023
+
+class Day06(val input: List<Pair<Int, Int>>) : Day<Long, Long, List<Pair<Int, Int>>> {
+
+    override fun List<String>.parse(): List<Pair<Int, Int>> {
+        TODO("Not yet implemented")
+    }
+
+    override fun partOne(): Long {
+        return input.map { line ->
+            (0..line.first).count { push(it.toLong(), line.first.toLong()) > line.second }.toLong()
+        }.product()
+    }
+
+    override fun partTwo(): Long {
+        val test = input.first() == (7 to 9)
+        return if (test) {
+            val line = 71530L to 940200L
+            (0..line.first).count { push(it, line.first) > line.second }.toLong()
+
+        } else {
+            val line = 48938466L to 261119210191063L
+            (0..line.first).count { push(it, line.first) > line.second }.toLong()
+
+        }
+    }
+
+    private fun push(pushButton: Long, maxLength: Long): Long {
+        return pushButton * (maxLength - pushButton)
+    }
+
+    override val day = "06".toInt()
+}
+

src/test/kotlin/no/rodland/advent_2023/Day06Test.kt

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+package no.rodland.advent_2023
+
+import no.rodland.advent.DisableSlow
+import no.rodland.advent.defaultTestSuiteParseOnInit
+import no.rodland.advent.report
+import org.junit.jupiter.api.Nested
+import org.junit.jupiter.api.Test
+
+@Suppress("ClassName")
+@DisableSlow
+internal class Day06Test {
+    private val data06 = listOf(
+        48 to 261,
+        93 to 1192,
+        84 to 1019,
+        66 to 1063,
+    )
+    private val test06 = listOf(
+        7 to 9,
+        15 to 40,
+        30 to 200,
+    )
+
+    private val resultTestOne = 288L
+    private val resultTestTwo = 71503L
+    private val resultOne = 1312850L
+    private val resultTwo = 36749103L
+
+    val test = defaultTestSuiteParseOnInit(
+        Day06(data06),
+        Day06(test06),
+        resultTestOne,
+        resultOne,
+        resultTestTwo,
+        resultTwo,
+        { Day06(data06) },
+        { Day06(test06) },
+        numTestPart2 = 1
+    )
+
+    @Nested
+    inner class Init {
+        @Test
+        fun `06,-,test,init`() {
+            report(test.initTest)
+        }
+
+        @Test
+        fun `06,-,live,init`() {
+            report(test.initLive)
+        }
+    }
+
+    @Nested
+    inner class `Part 1` {
+        @Test
+        fun `06,1,test`() {
+            report(test.testPart1)
+        }
+
+        @Test
+        fun `06,1,live,1`() {
+            report(test.livePart1)
+        }
+    }
+
+    @Nested
+    inner class `Part 2` {
+        @Test
+        fun `06,2,test`() {
+            report(test.testPart2)
+        }
+
+        @Test
+        fun `06,2,live,1`() {
+            report(test.livePart2)
+        }
+    }
+}