Initial project setup + Day 1

src/main/kotlin/com/basdado/adventofcode/Utils.kt

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+package com.basdado.adventofcode
+
+import java.nio.file.Files
+import java.nio.file.Paths
+import java.util.stream.Stream
+
+fun lines(resourceFile: String): Stream<String> {
+    return Files.lines(Paths.get(Utils::class.java.getResource(resourceFile).toURI()))
+}
+
+class Utils

src/main/kotlin/com/basdado/adventofcode/day1/Day1.kt

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+package com.basdado.adventofcode.day1
+
+import com.basdado.adventofcode.lines
+
+const val DAY1_PATH = "/day/1/input.txt"
+
+fun main(args: Array<String>) {
+    println(Day1.puzzle1())
+    println(Day1.puzzle2())
+}
+
+object Day1 {
+
+    fun puzzle1(): Long {
+        return lines(DAY1_PATH)
+            .filter { !it.isBlank() }
+            .mapToLong { it.toLong() }
+            .map { (it / 3) - 2 }
+            .sum()
+    }
+
+    fun puzzle2(): Long {
+        return lines(DAY1_PATH)
+            .filter { !it.isBlank() }
+            .mapToLong { it.toLong() }
+            .map { (it / 3) - 2 }
+            .map { it + calculateFuelFuel(it) }
+            .sum()
+    }
+
+    private fun calculateFuelFuel(initialFuel: Long): Long {
+        var currentFuel = initialFuel
+        var sum = 0L
+        while (currentFuel > 8) {
+            currentFuel = currentFuel / 3 - 2
+            sum += currentFuel
+        }
+        return sum
+    }
+}

src/main/resources/day/1/input.txt

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+66626
+95053
+84365
+111504
+97412
+124986
+133224
+60267
+68096
+120910
+105547
+138575
+112841
+113102
+92387
+83511
+62646
+98974
+138093
+59417
+137854
+78318
+143846
+81514
+86217
+98493
+82056
+129376
+61322
+51045
+115467
+106540
+149439
+141253
+65608
+130480
+79444
+80032
+101908
+105695
+145502
+87538
+68817
+128768
+148784
+115464
+147306
+148666
+118258
+82755
+68422
+98333
+105334
+120963
+89349
+78675
+99151
+61383
+81549
+106544
+72880
+88152
+110879
+91277
+123584
+78430
+51658
+126045
+93833
+52535
+130831
+130920
+80069
+140263
+50943
+63503
+116135
+112686
+67582
+83515
+128736
+136447
+69998
+72472
+61009
+136054
+124675
+134813
+149765
+132135
+127787
+148333
+78020
+94212
+81407
+58994
+146820
+66603
+62761
+86955