Add 2021 - Day 2 - Part 1

.idea/runConfigurations/2021___Day_02.xml

@@ -0,0 +1,11 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="2021 - Day 02" type="JetRunConfigurationType">
+    <option name="MAIN_CLASS_NAME" value="MainKt" />
+    <module name="Advent_of_Code.2021-02" />
+    <shortenClasspath name="NONE" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/2021/02" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>

2021/02/main.kt

@@ -0,0 +1,21 @@
+import java.io.File
+
+fun main() {
+	val lines = File("input/1.txt").readLines()
+	val directions = lines.map { line -> line.split(' ', limit = 2).let { it[0] to it[1].toInt() } }
+	
+	var position = 0
+	var depth = 0
+	
+	for ((direction, distance) in directions) {
+		when (direction) {
+			"forward" -> position += distance
+			"up"      -> depth -= distance
+			"down"    -> depth += distance
+		}
+	}
+	
+	println("Position: $position")
+	println("Depth: $depth")
+	println("Multiplied: ${position * depth}")
+}

build.gradle.kts

@@ -33,4 +33,5 @@ sourceSets {
 	}
 	
 	make(2021, 1)
+	make(2021, 2)
 }