Merge pull request #85 from tlarsen0/feature/day06.1-2024-06-25

Adding configuration and solution to Advent of Code 2023, Day 6 Part 1.

Author: tlarsen0

2023/day06_1/day06_1.iml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/kotlin" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/kotlin" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="KotlinJavaRuntime" level="project" />
+  </component>
+</module>

2023/day06_1/src/main/kotlin/Main.kt

@@ -0,0 +1,66 @@
+import java.io.File
+
+fun main(args: Array<String>) {
+    println("AOC 2023, Day 6, Part 1 starting!!!")
+
+    val time = Time()
+    val distance = Distance()
+    File(args[0]).forEachLine {
+        println("Data read-- $it")
+        val theSplit = it.split("""\W+""".toRegex())
+
+        if(theSplit.first() == "Time") {
+            for(split in theSplit) {
+                if(split == theSplit.first()) {
+                    // skip the first since it is "Time"
+                    continue
+                }
+                time.raceTimes.add(split.toInt())
+            }
+        } else {
+            for(split in theSplit) {
+                if(split == theSplit.first()) {
+                    continue
+                }
+                distance.raceDistances.add(split.toInt())
+            }
+        }
+    }
+    val timeDistance = TimeDistance(time, distance)
+
+    val answer = timeDistance.calculateWaysToBeat()
+
+    println("The answer: $answer")
+
+    println("AOC 2023, Day 6, Part 1 completed!!!")
+}
+
+class Time {
+    val raceTimes = ArrayList<Int>()
+}
+
+class Distance {
+    val raceDistances = ArrayList<Int>()
+}
+
+class TimeDistance(private val time: Time, private val distance: Distance) {
+    fun calculateWaysToBeat():Long {
+        var winCount = 1L
+        for(i in 0..<time.raceTimes.count()) {
+            winCount *= runRace(time.raceTimes[i], distance.raceDistances[i])
+        }
+        return winCount
+    }
+
+    private fun runRace(raceTime: Int, raceDistance: Int):Long {
+        var winCount = 0L
+        for(t in 1.. raceTime) {
+            val runTime = raceTime - t
+            val calculatedDistance = t * runTime
+            if(calculatedDistance > raceDistance) {
+                winCount++
+            }
+        }
+        return winCount
+    }
+}

2023/day06_1/src/main/resources/input

@@ -0,0 +1,2 @@
+Time:        54     70     82     75
+Distance:   239   1142   1295   1253

2023/day06_1/src/main/resources/small_input

@@ -0,0 +1,2 @@
+Time:      7  15   30
+Distance:  9  40  200