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0b1ae6e334
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master
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| 23cb05ad27 |
@@ -0,0 +1,14 @@
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plugins {
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id("java-convention")
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}
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dependencies {
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implementation(project(":utils"))
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annotationProcessor(Libs.Micronaut.processor)
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implementation(Libs.eclipseCollections)
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testImplementation(Libs.Jmh.core)
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testAnnotationProcessor(Libs.Jmh.processor)
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}
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@@ -0,0 +1,47 @@
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package be.vandewalleh.aoc;
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import be.vandewalleh.aoc.utils.factory.Days;
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import be.vandewalleh.aoc.utils.input.Day;
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import be.vandewalleh.aoc.utils.input.Lines;
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@Day(1)
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public class Day01 {
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public static void main(String[] args) {
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var day = Days.createDay(Day01.class);
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System.out.println(day.part1());
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System.out.println(day.part2());
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}
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private final int[] input;
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public Day01(@Lines int[] input) {
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this.input = input;
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}
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private int fuel(int mass) {
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return (mass / 3) - 2;
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}
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public int part1() {
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var total = 0;
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for (var mass : input) {
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total += fuel(mass);
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}
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return total;
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}
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public int part2() {
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var total = 0;
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for (var mass : input) {
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int fuel = fuel(mass);
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total += fuel;
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while (true) {
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fuel = fuel(fuel);
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if (fuel <= 0) break;
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total += fuel;
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}
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}
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return total;
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}
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}
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@@ -0,0 +1,43 @@
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package be.vandewalleh.aoc;
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import be.vandewalleh.aoc.intcode.IntCodeInterpreter;
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import be.vandewalleh.aoc.utils.factory.Days;
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import be.vandewalleh.aoc.utils.input.Csv;
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import be.vandewalleh.aoc.utils.input.Day;
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@Day(2)
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public class Day02 {
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public static void main(String[] args) {
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var day = Days.createDay(Day02.class);
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System.out.println(day.part1());
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System.out.println(day.part2());
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}
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private final int[] input;
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public Day02(@Csv int[] input) {
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this.input = input;
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}
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private long runInterpreterWith(int noun, int verb) {
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var interpreter = new IntCodeInterpreter(input);
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interpreter.setNoun(noun);
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interpreter.setVerb(verb);
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interpreter.run();
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return interpreter.getOutput();
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}
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public long part1() {
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return runInterpreterWith(12, 2);
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}
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public int part2() {
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for (var noun = 0; noun < 99; noun++) {
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for (var verb = 0; verb < 99; verb++) {
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if (runInterpreterWith(noun, verb) == 19690720L) return 100 * noun + verb;
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}
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}
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return -1;
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}
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}
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@@ -0,0 +1,63 @@
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package be.vandewalleh.aoc;
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import be.vandewalleh.aoc.geometry.Direction2D;
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import be.vandewalleh.aoc.geometry.Point2D;
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import be.vandewalleh.aoc.utils.factory.Days;
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import be.vandewalleh.aoc.utils.input.Day;
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import be.vandewalleh.aoc.utils.input.Lines;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.List;
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@Day(3)
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public class Day03 {
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public static void main(String[] args) {
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var day = Days.createDay(Day03.class);
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System.out.println(day.part1());
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System.out.println(day.part2());
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}
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private final String[] wireA;
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private final String[] wireB;
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public Day03(@Lines List<String> input) {
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this.wireA = input.get(0).split(",");
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this.wireB = input.get(1).split(",");
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}
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private List<Point2D> path(String[] wire) {
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var points = new ArrayList<Point2D>();
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var point = Point2D.origin;
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for (var section : wire) {
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var direction = Direction2D.from(section.charAt(0));
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var count = Integer.parseInt(section.substring(1));
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for (int i = 0; i < count; i++) {
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point = point.translate(direction.point);
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points.add(point);
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}
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}
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return points;
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}
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private int part1() {
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var pathA = path(wireA);
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var pathB = path(wireB);
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var intersections = new HashSet<>(pathA);
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intersections.retainAll(pathB);
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return intersections.stream().mapToInt(Point2D::manhattanDistance).min().orElse(-1);
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}
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private int part2() {
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var pathA = path(wireA);
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var pathB = path(wireB);
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var intersections = new HashSet<>(pathA);
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intersections.retainAll(pathB);
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return intersections.stream().mapToInt(p -> pathA.indexOf(p) + pathB.indexOf(p) + 2).min().orElse(-1);
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}
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}
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@@ -0,0 +1,80 @@
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package be.vandewalleh.aoc;
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import be.vandewalleh.aoc.utils.factory.Days;
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import be.vandewalleh.aoc.utils.input.Day;
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import be.vandewalleh.aoc.utils.input.Text;
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import java.util.Arrays;
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import java.util.stream.IntStream;
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import java.util.stream.Stream;
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@Day(4)
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public class Day04 {
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public static void main(String[] args) {
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var day = Days.createDay(Day04.class);
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System.out.println(day.part1());
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System.out.println(day.part2());
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}
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private final int min;
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private final int max;
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public Day04(@Text String input) {
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var spl = input.split("-", 2);
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min = Integer.parseInt(spl[0]);
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max = Integer.parseInt(spl[1]);
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}
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private boolean isNotDecreasing(int[] ints) {
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for (int i = 0; i < 5; i++) {
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int a = ints[i], b = ints[i + 1];
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if (b < a) return false;
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}
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return true;
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}
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private boolean hasPair(int[] ints) {
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for (int i = 0; i < 5; i++) {
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int a = ints[i], b = ints[i + 1];
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if (a == b) return true;
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}
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return false;
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}
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private boolean hasGroup(int[] ints) {
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var occurrences = new int[10];
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for (int i = 0; i < 5; i++) {
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int a = ints[i], b = ints[i + 1];
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if (a == b) occurrences[a]++;
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}
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return Arrays.stream(occurrences).anyMatch(e -> e == 1);
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}
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private Stream<int[]> intStream() {
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return IntStream.rangeClosed(min, max)
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.mapToObj(String::valueOf)
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.map(String::toCharArray)
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.map(e -> {
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var ints = new int[6];
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for (int i = 0; i < 6; i++) {
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ints[i] = Integer.parseInt(String.valueOf(e[i]));
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}
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return ints;
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||||
});
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}
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||||
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||||
private long part1() {
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return intStream()
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.filter(this::isNotDecreasing)
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.filter(this::hasPair)
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.count();
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}
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private long part2() {
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return intStream()
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.filter(this::isNotDecreasing)
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.filter(this::hasGroup)
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.count();
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||||
}
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||||
}
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@@ -0,0 +1,36 @@
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||||
package be.vandewalleh.aoc;
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||||
import be.vandewalleh.aoc.intcode.IntCodeInterpreter;
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||||
import be.vandewalleh.aoc.utils.factory.Days;
|
||||
import be.vandewalleh.aoc.utils.input.Csv;
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||||
import be.vandewalleh.aoc.utils.input.Day;
|
||||
|
||||
@Day(5)
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public class Day05 {
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|
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public static void main(String[] args) {
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var day = Days.createDay(Day05.class);
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System.out.println(day.part1());
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System.out.println(day.part2());
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}
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||||
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private final int[] input;
|
||||
|
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public Day05(@Csv int[] input) {
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this.input = input;
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||||
}
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||||
|
||||
private Long part1() {
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||||
var interpreter = new IntCodeInterpreter(input);
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||||
interpreter.setInput(1);
|
||||
interpreter.run();
|
||||
return interpreter.getOutputs().peek();
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}
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||||
|
||||
private Long part2() {
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var interpreter = new IntCodeInterpreter(input);
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interpreter.setInput(5);
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interpreter.run();
|
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return interpreter.getOutputs().peek();
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,80 @@
|
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package be.vandewalleh.aoc;
|
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|
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import be.vandewalleh.aoc.utils.factory.Days;
|
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import be.vandewalleh.aoc.utils.input.Day;
|
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import be.vandewalleh.aoc.utils.input.Lines;
|
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|
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import java.util.*;
|
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|
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@Day(6)
|
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public class Day06 {
|
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|
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public static void main(String[] args) {
|
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var day = Days.createDay(Day06.class);
|
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System.out.println(day.part1());
|
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System.out.println(day.part2());
|
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}
|
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|
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private final List<String> input;
|
||||
|
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public Day06(@Lines List<String> input) {
|
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this.input = input;
|
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}
|
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|
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private final Map<String, String> reverseOrbits = new HashMap<>();
|
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|
||||
private int countDirectOrbits() {
|
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return reverseOrbits.size();
|
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}
|
||||
|
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private int countIndirectOrbits() {
|
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var count = 0;
|
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for (var key : reverseOrbits.keySet()) {
|
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count += countIndirectOrbits(key);
|
||||
}
|
||||
return count;
|
||||
}
|
||||
|
||||
private int countIndirectOrbits(String key) {
|
||||
var count = 0;
|
||||
var currentKey = reverseOrbits.get(key);
|
||||
while (currentKey != null) {
|
||||
currentKey = reverseOrbits.get(currentKey);
|
||||
if (currentKey != null) count++;
|
||||
else return count;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
private List<String> pathToCom(String key) {
|
||||
var path = new ArrayList<String>();
|
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var currentKey = reverseOrbits.get(key);
|
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path.add(currentKey);
|
||||
while (currentKey != null) {
|
||||
currentKey = reverseOrbits.get(currentKey);
|
||||
if (currentKey == null) return path;
|
||||
else path.add(currentKey);
|
||||
}
|
||||
return path;
|
||||
}
|
||||
|
||||
private int part1() {
|
||||
for (var line : input) {
|
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var split = line.split("\\)");
|
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reverseOrbits.put(split[1], split[0]);
|
||||
}
|
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return countDirectOrbits() + countIndirectOrbits();
|
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}
|
||||
|
||||
private int part2() {
|
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var sanPath = pathToCom("SAN");
|
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var youPath = pathToCom("YOU");
|
||||
|
||||
var common = new LinkedHashSet<>(sanPath);
|
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common.retainAll(youPath);
|
||||
|
||||
String closestCommon = (String) common.toArray()[0];
|
||||
return sanPath.indexOf(closestCommon) + youPath.indexOf(closestCommon);
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,29 @@
|
||||
package be.vandewalleh.aoc.geometry;
|
||||
|
||||
public enum Direction2D {
|
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Up(0, -1), Down(0, 1), Right(1, 0), Left(-1, 0);
|
||||
|
||||
public final Point2D point;
|
||||
|
||||
Direction2D(int x, int y) {
|
||||
this.point = new Point2D(x, y);
|
||||
}
|
||||
|
||||
public static Direction2D from(char direction) {
|
||||
switch (direction) {
|
||||
case 'U' -> {
|
||||
return Direction2D.Up;
|
||||
}
|
||||
case 'D' -> {
|
||||
return Direction2D.Down;
|
||||
}
|
||||
case 'R' -> {
|
||||
return Direction2D.Right;
|
||||
}
|
||||
case 'L' -> {
|
||||
return Direction2D.Left;
|
||||
}
|
||||
default -> throw new IllegalArgumentException("Unexpected value: " + direction);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,13 @@
|
||||
package be.vandewalleh.aoc.geometry;
|
||||
|
||||
public record Point2D(int x, int y) {
|
||||
public static Point2D origin = new Point2D(0, 0);
|
||||
|
||||
public int manhattanDistance() {
|
||||
return Math.abs(x) + Math.abs(y);
|
||||
}
|
||||
|
||||
public Point2D translate(Point2D other) {
|
||||
return new Point2D(this.x + other.x, this.y + other.y);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,115 @@
|
||||
package be.vandewalleh.aoc.intcode;
|
||||
|
||||
import java.util.ArrayDeque;
|
||||
import java.util.Arrays;
|
||||
import java.util.Deque;
|
||||
|
||||
public class IntCodeInterpreter {
|
||||
private final Deque<Long> outputs = new ArrayDeque<>();
|
||||
private final long[] memory;
|
||||
private long input;
|
||||
|
||||
public IntCodeInterpreter(int[] memory) {
|
||||
this.memory = Arrays.stream(memory).asLongStream().toArray();
|
||||
}
|
||||
|
||||
public void setNoun(long noun) {
|
||||
memory[1] = noun;
|
||||
}
|
||||
|
||||
public void setVerb(long verb) {
|
||||
memory[2] = verb;
|
||||
}
|
||||
|
||||
public void setInput(long input) {
|
||||
this.input = input;
|
||||
}
|
||||
|
||||
public long getOutput() {
|
||||
return memory[0];
|
||||
}
|
||||
|
||||
// private ?
|
||||
public Deque<Long> getOutputs() {
|
||||
return outputs;
|
||||
}
|
||||
|
||||
private long readArgument(Mode mode, long param) {
|
||||
switch (mode) {
|
||||
case Positional -> {
|
||||
return memory[(int) param];
|
||||
}
|
||||
case Immediate -> {
|
||||
return param;
|
||||
}
|
||||
default -> throw new IllegalArgumentException();
|
||||
}
|
||||
}
|
||||
|
||||
private void writeArgument(long param, long value) {
|
||||
memory[(int) param] = value;
|
||||
}
|
||||
|
||||
private Mode[] modes(long instruction) {
|
||||
var str = String.format("%5d", instruction).replace(' ', '0');
|
||||
return new Mode[]{
|
||||
Mode.of(str.charAt(2)),
|
||||
Mode.of(str.charAt(1)),
|
||||
Mode.of(str.charAt(0))
|
||||
};
|
||||
}
|
||||
|
||||
public void run() {
|
||||
var pointer = 0;
|
||||
|
||||
loop:
|
||||
while (true) {
|
||||
var jumped = false;
|
||||
var instruction = memory[pointer];
|
||||
var opCode = OpCode.from(((int) instruction) % 100);
|
||||
var args = Arrays.copyOfRange(memory, pointer + 1, pointer + opCode.params + 1);
|
||||
var modes = modes(instruction);
|
||||
switch (opCode) {
|
||||
case Add -> {
|
||||
var value = readArgument(modes[0], args[0]) + readArgument(modes[1], args[1]);
|
||||
writeArgument(args[2], value);
|
||||
}
|
||||
case Multiply -> {
|
||||
var value = readArgument(modes[0], args[0]) * readArgument(modes[1], args[1]);
|
||||
writeArgument(args[2], value);
|
||||
}
|
||||
case In -> {
|
||||
writeArgument(args[0], input);
|
||||
}
|
||||
case Out -> {
|
||||
outputs.push(readArgument(modes[0], args[0]));
|
||||
}
|
||||
case JumpIfTrue -> {
|
||||
if (readArgument(modes[0], args[0]) != 0) {
|
||||
pointer = (int) readArgument(modes[1], args[1]);
|
||||
jumped = true;
|
||||
}
|
||||
}
|
||||
case JumpIfFalse -> {
|
||||
if (readArgument(modes[0], args[0]) == 0) {
|
||||
pointer = (int) readArgument(modes[1], args[1]);
|
||||
jumped = true;
|
||||
}
|
||||
}
|
||||
case LessThan -> {
|
||||
var value = readArgument(modes[0], args[0]) < readArgument(modes[1], args[1]) ? 1 : 0;
|
||||
writeArgument(args[2], value);
|
||||
}
|
||||
case Equals -> {
|
||||
var value = readArgument(modes[0], args[0]) == readArgument(modes[1], args[1]) ? 1 : 0;
|
||||
writeArgument(args[2], value);
|
||||
}
|
||||
case Halt -> {
|
||||
break loop;
|
||||
}
|
||||
|
||||
}
|
||||
if (!jumped) pointer += opCode.params + 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,11 @@
|
||||
package be.vandewalleh.aoc.intcode;
|
||||
|
||||
public enum Mode {
|
||||
Positional, Immediate;
|
||||
|
||||
public static Mode of(char representation) {
|
||||
if (representation == '0') return Mode.Positional;
|
||||
else if (representation == '1') return Mode.Immediate;
|
||||
else throw new IllegalArgumentException("Unsupported Mode " + representation);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,29 @@
|
||||
package be.vandewalleh.aoc.intcode;
|
||||
|
||||
public enum OpCode {
|
||||
Add(1, 3),
|
||||
Multiply(2, 3),
|
||||
Halt(99, 0),
|
||||
In(3, 1),
|
||||
Out(4, 1),
|
||||
JumpIfTrue(5, 2),
|
||||
JumpIfFalse(6, 2),
|
||||
LessThan(7, 3),
|
||||
Equals(8, 3),
|
||||
;
|
||||
|
||||
public final int value;
|
||||
public final int params;
|
||||
|
||||
OpCode(int value, int params) {
|
||||
this.value = value;
|
||||
this.params = params;
|
||||
}
|
||||
|
||||
public static OpCode from(int value) {
|
||||
for (OpCode opCode : OpCode.values()) {
|
||||
if (opCode.value == value) return opCode;
|
||||
}
|
||||
throw new IllegalArgumentException("Unsupported OpCode " + value);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,100 @@
|
||||
132791
|
||||
78272
|
||||
114679
|
||||
60602
|
||||
59038
|
||||
69747
|
||||
61672
|
||||
147972
|
||||
92618
|
||||
70186
|
||||
125826
|
||||
61803
|
||||
78112
|
||||
124864
|
||||
58441
|
||||
113062
|
||||
105389
|
||||
125983
|
||||
90716
|
||||
75544
|
||||
148451
|
||||
73739
|
||||
127762
|
||||
146660
|
||||
128747
|
||||
148129
|
||||
138635
|
||||
80095
|
||||
60241
|
||||
145455
|
||||
98730
|
||||
59139
|
||||
146828
|
||||
113550
|
||||
91682
|
||||
107415
|
||||
129207
|
||||
147635
|
||||
104583
|
||||
102245
|
||||
73446
|
||||
148657
|
||||
96364
|
||||
52033
|
||||
69964
|
||||
63609
|
||||
98207
|
||||
73401
|
||||
65511
|
||||
115034
|
||||
126179
|
||||
96664
|
||||
85394
|
||||
128472
|
||||
79017
|
||||
93222
|
||||
55267
|
||||
102446
|
||||
133150
|
||||
148985
|
||||
95325
|
||||
57713
|
||||
77370
|
||||
60879
|
||||
111977
|
||||
99362
|
||||
91581
|
||||
55201
|
||||
137670
|
||||
127159
|
||||
128324
|
||||
77217
|
||||
86378
|
||||
112847
|
||||
108265
|
||||
80355
|
||||
75650
|
||||
106222
|
||||
67793
|
||||
113891
|
||||
74508
|
||||
139463
|
||||
69972
|
||||
122753
|
||||
135854
|
||||
127770
|
||||
101085
|
||||
98304
|
||||
61451
|
||||
146719
|
||||
61225
|
||||
60468
|
||||
83613
|
||||
137436
|
||||
126303
|
||||
78759
|
||||
70081
|
||||
110671
|
||||
113234
|
||||
111563
|
||||
@@ -0,0 +1 @@
|
||||
1,0,0,3,1,1,2,3,1,3,4,3,1,5,0,3,2,6,1,19,1,5,19,23,2,6,23,27,1,27,5,31,2,9,31,35,1,5,35,39,2,6,39,43,2,6,43,47,1,5,47,51,2,9,51,55,1,5,55,59,1,10,59,63,1,63,6,67,1,9,67,71,1,71,6,75,1,75,13,79,2,79,13,83,2,9,83,87,1,87,5,91,1,9,91,95,2,10,95,99,1,5,99,103,1,103,9,107,1,13,107,111,2,111,10,115,1,115,5,119,2,13,119,123,1,9,123,127,1,5,127,131,2,131,6,135,1,135,5,139,1,139,6,143,1,143,6,147,1,2,147,151,1,151,5,0,99,2,14,0,0
|
||||
@@ -0,0 +1,2 @@
|
||||
R1000,U371,R195,U136,R804,U805,L450,U211,R768,U768,L548,U354,L736,U431,L152,U658,L670,D262,L277,U136,L290,U939,R501,U550,L931,D839,R335,D492,L25,U80,R878,U355,R653,U186,R423,D485,L793,D259,L739,U679,R508,D269,R432,D761,R97,D461,L675,U958,L58,U348,L719,D271,R144,U849,R384,U72,L84,U493,R947,U30,L356,D442,R327,U646,R825,U718,L329,D173,L949,D345,L971,D830,L93,U506,R245,D376,R322,D105,L604,D60,R298,D959,L165,D423,R180,D527,R956,D944,R785,U641,L794,D182,R975,D719,L166,U974,L224,U243,L666,U706,R796,D600,L856,D913,L988,D993,L259,U351,R487,D424,L335,U910,L437,D180,R621,D3,R878,D188,R254,D393,L727,U829,R352,U958,L327,D158,L854,D17,R143,D454,R889,D265,L345,U784,R35,D129,R77,U117,R951,D980,L866,U646,R242,D603,L562,U727,L496,U328,L380,D504,R644,U803,L530,D546,R328,D373,L489,U454,R74,D908,R366,U94,R604,D482,L573,D27,R943,U497,L782,D267,L391,U49,R528,D58,R155,D529,R227,D998,R558,D891,R224,U843,R512,U34,R92,U404,R752,U946,L338,D880,L513,D28,L856,D444,L187,U532,L187,U669,L306,U259,R287,D442,R478,U576,R702,U336,L305,U701,L754,D277,R760,D863,L717,U196,L221,U101,L334,D156,L961,D810,L67,D716,L457,D44,L505,D724,R716,D660,L36,D338,R54,U424,R730,U18,L65,D133,R149,U374,R356,D989,R519,U593,L444,D270,R328,U167,L748,D797,L434,U751,R444,D71,R158,D530,L630,U147,R909,D994,L957,U521,L644,D579,R673,U191,R935,U237,R600,D321,L671,U961,L884,U378,R534,D46,R275,U845,R571,U245,L507,U273,R995,U408,L14,D799,L955,D534,R579,D94,R705,D391,R469,D381,R620,U162,R907,D826,R824,U167,L734,U922,L484
|
||||
L1007,D620,R853,U77,L13,U473,L253,D410,R897,U464,L862,U281,L650,D470,R87,D204,L896,U670,L864,D950,L75,D320,R901,D785,L653,D225,L857,U616,L143,U940,L664,U131,L547,D745,R636,U569,L50,U454,R288,D254,L36,U377,L609,U929,L714,U85,L939,U923,L566,D280,R243,U948,R447,D7,R908,D151,R824,D432,R34,D81,L458,U745,L420,D982,L625,U910,L729,D274,R910,U322,L984,D88,L700,D349,L932,U510,R625,U88,L252,U785,L378,D101,R299,U66,L476,U696,R236,D46,R590,U157,R461,U305,L269,D487,L676,U467,R319,D524,R75,U65,L478,U861,L238,D716,R888,D12,L184,D578,R266,D226,L656,D172,L752,U124,L831,U810,L663,U538,R417,D770,L359,U1,R12,U791,L332,U272,R574,D942,L857,U447,R310,U342,L713,D258,R590,D585,R129,D115,R832,D967,R981,D159,R864,U423,R268,U519,L52,D493,R445,D657,R885,U166,R155,D264,R51,D632,R525,D875,R617,U898,L556,D386,L143,U278,L767,D389,R821,U869,R286,D90,R289,U54,R15,D764,R46,D674,R983,U49,R959,U779,R958,D247,R483,U156,L18,U12,L178,U540,L499,U487,L544,D336,R814,U267,R145,D135,L920,D902,L933,D507,L997,U361,L577,U425,L773,D782,R117,U851,R998,U503,R902,U781,L161,U98,L653,U633,L91,U629,L138,D19,R147,D756,R364,D529,L764,U913,L118,U856,R774,D621,R151,U154,R737,D960,R86,U458,R991,D481,R560,D858,R223,D6,R931,D301,R552,D797,R284,U368,L967,D686,R940,U410,R137,D156,L6,U643,L445,D999,R888,D277,L852,U210,L777,D36,R103,D652,R120,D67,L642,D527,R913,D858,R69,D433,R864,U75,L531,U456,L664,D452,R801,U851,L824,D278,L526,U133,R200,U768,R15,U393,R982,U287,L38,D114,R86,U299,L819,D891,R379,D601,L244
|
||||
@@ -0,0 +1 @@
|
||||
272091-815432
|
||||
@@ -0,0 +1 @@
|
||||
3,225,1,225,6,6,1100,1,238,225,104,0,1101,11,91,225,1002,121,77,224,101,-6314,224,224,4,224,1002,223,8,223,1001,224,3,224,1,223,224,223,1102,74,62,225,1102,82,7,224,1001,224,-574,224,4,224,102,8,223,223,1001,224,3,224,1,224,223,223,1101,28,67,225,1102,42,15,225,2,196,96,224,101,-4446,224,224,4,224,102,8,223,223,101,6,224,224,1,223,224,223,1101,86,57,225,1,148,69,224,1001,224,-77,224,4,224,102,8,223,223,1001,224,2,224,1,223,224,223,1101,82,83,225,101,87,14,224,1001,224,-178,224,4,224,1002,223,8,223,101,7,224,224,1,223,224,223,1101,38,35,225,102,31,65,224,1001,224,-868,224,4,224,1002,223,8,223,1001,224,5,224,1,223,224,223,1101,57,27,224,1001,224,-84,224,4,224,102,8,223,223,1001,224,7,224,1,223,224,223,1101,61,78,225,1001,40,27,224,101,-89,224,224,4,224,1002,223,8,223,1001,224,1,224,1,224,223,223,4,223,99,0,0,0,677,0,0,0,0,0,0,0,0,0,0,0,1105,0,99999,1105,227,247,1105,1,99999,1005,227,99999,1005,0,256,1105,1,99999,1106,227,99999,1106,0,265,1105,1,99999,1006,0,99999,1006,227,274,1105,1,99999,1105,1,280,1105,1,99999,1,225,225,225,1101,294,0,0,105,1,0,1105,1,99999,1106,0,300,1105,1,99999,1,225,225,225,1101,314,0,0,106,0,0,1105,1,99999,1008,677,226,224,1002,223,2,223,1006,224,329,101,1,223,223,8,226,677,224,102,2,223,223,1005,224,344,101,1,223,223,1107,226,677,224,102,2,223,223,1006,224,359,101,1,223,223,1007,226,226,224,102,2,223,223,1006,224,374,101,1,223,223,7,677,677,224,102,2,223,223,1005,224,389,1001,223,1,223,108,677,677,224,1002,223,2,223,1005,224,404,101,1,223,223,1008,226,226,224,102,2,223,223,1005,224,419,1001,223,1,223,1107,677,226,224,102,2,223,223,1005,224,434,1001,223,1,223,1108,677,677,224,102,2,223,223,1006,224,449,1001,223,1,223,7,226,677,224,102,2,223,223,1005,224,464,101,1,223,223,1008,677,677,224,102,2,223,223,1005,224,479,101,1,223,223,1007,226,677,224,1002,223,2,223,1006,224,494,101,1,223,223,8,677,226,224,1002,223,2,223,1005,224,509,101,1,223,223,1007,677,677,224,1002,223,2,223,1006,224,524,101,1,223,223,107,226,226,224,102,2,223,223,1006,224,539,101,1,223,223,107,226,677,224,102,2,223,223,1005,224,554,1001,223,1,223,7,677,226,224,102,2,223,223,1006,224,569,1001,223,1,223,107,677,677,224,1002,223,2,223,1005,224,584,101,1,223,223,1107,677,677,224,102,2,223,223,1005,224,599,101,1,223,223,1108,226,677,224,102,2,223,223,1006,224,614,101,1,223,223,8,226,226,224,102,2,223,223,1006,224,629,101,1,223,223,108,226,677,224,102,2,223,223,1005,224,644,1001,223,1,223,108,226,226,224,102,2,223,223,1005,224,659,101,1,223,223,1108,677,226,224,102,2,223,223,1006,224,674,1001,223,1,223,4,223,99,226
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,18 @@
|
||||
plugins {
|
||||
id("kotlin-convention")
|
||||
kotlin("kapt")
|
||||
}
|
||||
|
||||
dependencies {
|
||||
implementation(project(":utils"))
|
||||
|
||||
kapt(Libs.Micronaut.processor)
|
||||
|
||||
implementation(Libs.Slf4J.api)
|
||||
runtimeOnly(Libs.Slf4J.simple)
|
||||
|
||||
implementation(Libs.eclipseCollections)
|
||||
|
||||
testImplementation(Libs.Jmh.core)
|
||||
kaptTest(Libs.Jmh.processor)
|
||||
}
|
||||
@@ -1,14 +1,10 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
|
||||
@Day(1)
|
||||
class Day01(@Lines input: Input<IntArray>) {
|
||||
private val items = input.value
|
||||
|
||||
class Day01(@Lines val items: IntArray) {
|
||||
fun part1(): Int? {
|
||||
items.forEach { a ->
|
||||
items.forEach { b ->
|
||||
@@ -31,7 +27,3 @@ class Day01(@Lines input: Input<IntArray>) {
|
||||
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day01>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,17 +1,15 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
|
||||
data class PasswordEntry(val range: IntRange, val letter: Char, val password: String)
|
||||
|
||||
@Day(2)
|
||||
class Day02(@Lines input: Input<List<String>>) {
|
||||
class Day02(@Lines input: List<String>) {
|
||||
private data class PasswordEntry(val range: IntRange, val letter: Char, val password: String)
|
||||
|
||||
private val regex = "^(\\d+)-(\\d+) ([a-z]): (.*)$".toRegex()
|
||||
|
||||
private val passwords = input.value.map {
|
||||
private val passwords = input.map {
|
||||
val (_, min, max, letter, password) = regex.find(it)!!.groupValues
|
||||
PasswordEntry(min.toInt()..max.toInt(), letter[0], password)
|
||||
}
|
||||
@@ -22,8 +20,3 @@ class Day02(@Lines input: Input<List<String>>) {
|
||||
(pwd[range.first - 1] == letter) xor (pwd[range.last - 1] == letter)
|
||||
}
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day02>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,17 +1,14 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
|
||||
data class Slope(val x: Int, val y: Int)
|
||||
|
||||
@Day(3)
|
||||
class Day03(@Lines val input: Input<List<String>>) {
|
||||
class Day03(@Lines val input: List<String>) {
|
||||
private data class Slope(val x: Int, val y: Int)
|
||||
|
||||
fun part1(slope: Slope = Slope(x = 3, y = 1)): Int {
|
||||
val grid = input.value
|
||||
private fun findSlope(slope: Slope): Int {
|
||||
val grid = input
|
||||
var trees = 0
|
||||
var x = 0
|
||||
var y = 0
|
||||
@@ -28,6 +25,8 @@ class Day03(@Lines val input: Input<List<String>>) {
|
||||
return trees
|
||||
}
|
||||
|
||||
fun part1() = findSlope(Slope(x = 3, y = 1))
|
||||
|
||||
fun part2(): Long = listOf(
|
||||
Slope(x = 1, y = 1),
|
||||
Slope(x = 3, y = 1),
|
||||
@@ -35,11 +34,6 @@ class Day03(@Lines val input: Input<List<String>>) {
|
||||
Slope(x = 7, y = 1),
|
||||
Slope(x = 1, y = 2),
|
||||
)
|
||||
.map { part1(it).toLong() }
|
||||
.map { findSlope(it).toLong() }
|
||||
.reduce { acc, trees -> acc * trees }
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day03>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,17 +1,15 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Text
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
|
||||
typealias Entry = Pair<String, String>
|
||||
typealias Entries = List<Entry>
|
||||
private typealias Entry = Pair<String, String>
|
||||
private typealias Entries = List<Entry>
|
||||
|
||||
@Day(4)
|
||||
class Day04(@Text val input: Input<String>) {
|
||||
class Day04(@Text val input: String) {
|
||||
|
||||
val entries = input.value.split("\n\n").map {
|
||||
val entries = input.split("\n\n").map {
|
||||
it.split(" ", "\n").map { it.split(":").let { (k, v) -> k to v } }
|
||||
}
|
||||
|
||||
@@ -42,8 +40,3 @@ class Day04(@Text val input: Input<String>) {
|
||||
|
||||
fun part2() = entries.count { it.hasRequiredKeys() && it.all { it.isValid() } }
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day04>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,14 +1,12 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
|
||||
@Day(5)
|
||||
class Day05(@Lines val input: Input<List<String>>) {
|
||||
class Day05(@Lines val input: List<String>) {
|
||||
|
||||
private val ids = input.value.map {
|
||||
private val ids = input.map {
|
||||
it.replace("F", "0")
|
||||
.replace("B", "1")
|
||||
.replace("L", "0")
|
||||
@@ -22,8 +20,3 @@ class Day05(@Lines val input: Input<List<String>>) {
|
||||
.find { (a, b) -> b - a > 1 }!!
|
||||
.first() + 1
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day05>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,15 +1,13 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Text
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import org.eclipse.collections.impl.factory.primitive.CharBags
|
||||
|
||||
@Day(6)
|
||||
class Day06(@Text val input: Input<String>) {
|
||||
class Day06(@Text val input: String) {
|
||||
|
||||
private val groups = input.value.split("\n\n")
|
||||
private val groups = input.split("\n\n")
|
||||
|
||||
fun part1() = groups.sumBy { it.replace("\n", "").toCharArray().toSet().size }
|
||||
|
||||
@@ -23,8 +21,3 @@ class Day06(@Text val input: Input<String>) {
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day06>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,18 +1,16 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import org.eclipse.collections.api.factory.Stacks
|
||||
import org.eclipse.collections.api.multimap.list.ImmutableListMultimap
|
||||
import org.eclipse.collections.api.stack.MutableStack
|
||||
import org.eclipse.collections.impl.factory.Multimaps
|
||||
|
||||
data class Bag(val count: Int, val color: String)
|
||||
|
||||
@Day(7)
|
||||
class Day07(@Lines val input: Input<List<String>>) {
|
||||
class Day07(@Lines val input: List<String>) {
|
||||
|
||||
private data class Bag(val count: Int, val color: String)
|
||||
|
||||
private val map: ImmutableListMultimap<String, Bag>
|
||||
|
||||
@@ -22,7 +20,7 @@ class Day07(@Lines val input: Input<List<String>>) {
|
||||
val colorRegex = "^(\\w+ \\w+)".toRegex()
|
||||
val requirementRegex = "(\\d+) (\\w+ \\w+) bag".toRegex()
|
||||
|
||||
for (line in input.value) {
|
||||
for (line in input) {
|
||||
val outerColor = colorRegex.find(line)!!.groupValues[1]
|
||||
for (match in requirementRegex.findAll(line)) {
|
||||
val (_, count, color) = match.groupValues
|
||||
@@ -50,8 +48,3 @@ class Day07(@Lines val input: Input<List<String>>) {
|
||||
fun part2() = bagSequence("shiny gold").sumBy { it.count }
|
||||
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day07>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,21 +1,24 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import org.eclipse.collections.impl.factory.primitive.IntLists
|
||||
import org.eclipse.collections.impl.factory.primitive.IntSets
|
||||
|
||||
@Day(8)
|
||||
class Day08(@Lines val input: Input<List<String>>) {
|
||||
class Day08(@Lines val input: List<String>) {
|
||||
|
||||
private val instructions = input.value.map {
|
||||
private val instructions = input.map {
|
||||
val words = it.split(" ")
|
||||
Instruction(Operation.valueOf(words[0].capitalize()), words[1].toInt())
|
||||
}.toTypedArray()
|
||||
|
||||
fun part1() = run(instructions)
|
||||
fun part1() = run(instructions).let {
|
||||
when (it) {
|
||||
is VmResult.Looped -> it.acc
|
||||
is VmResult.Terminated -> it.acc
|
||||
}
|
||||
}
|
||||
|
||||
private fun run(instructions: Array<Instruction>): VmResult {
|
||||
var acc = 0
|
||||
@@ -41,7 +44,7 @@ class Day08(@Lines val input: Input<List<String>>) {
|
||||
return VmResult.Looped(acc)
|
||||
}
|
||||
|
||||
fun part2(): VmResult {
|
||||
fun part2(): Int {
|
||||
val possibleMutations = IntLists.mutable.empty()
|
||||
instructions.forEachIndexed { i, e ->
|
||||
if (e.operation == Operation.Jmp || e.operation == Operation.Nop) possibleMutations.add(i)
|
||||
@@ -54,7 +57,7 @@ class Day08(@Lines val input: Input<List<String>>) {
|
||||
}
|
||||
|
||||
val res = run(copy)
|
||||
if (res is VmResult.Terminated) return res
|
||||
if (res is VmResult.Terminated) return res.acc
|
||||
}
|
||||
|
||||
error("No result found")
|
||||
@@ -62,17 +65,11 @@ class Day08(@Lines val input: Input<List<String>>) {
|
||||
|
||||
}
|
||||
|
||||
enum class Operation { Acc, Jmp, Nop }
|
||||
private enum class Operation { Acc, Jmp, Nop }
|
||||
|
||||
data class Instruction(val operation: Operation, val argument: Int)
|
||||
private data class Instruction(val operation: Operation, val argument: Int)
|
||||
|
||||
sealed class VmResult {
|
||||
private sealed class VmResult {
|
||||
data class Looped(val acc: Int) : VmResult()
|
||||
data class Terminated(val acc: Int) : VmResult()
|
||||
}
|
||||
|
||||
fun main() {
|
||||
val day = createDay<Day08>()
|
||||
println(day.part1())
|
||||
println(day.part2())
|
||||
}
|
||||
@@ -1,20 +1,16 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
|
||||
@Day(9)
|
||||
class Day09(@Lines val input: Input<LongArray>) {
|
||||
class Day09(@Lines val input: LongArray) {
|
||||
|
||||
private var part1Result = 0L
|
||||
|
||||
fun part1(): Long? {
|
||||
val longs = input.value
|
||||
|
||||
for (windowStart in 0 until longs.size - 26) {
|
||||
val last = longs[windowStart + 25]
|
||||
for (windowStart in 0 until input.size - 26) {
|
||||
val last = input[windowStart + 25]
|
||||
if (!isValid(windowStart, last)) {
|
||||
part1Result = last
|
||||
return last
|
||||
@@ -27,8 +23,8 @@ class Day09(@Lines val input: Input<LongArray>) {
|
||||
private fun isValid(windowStart: Int, last: Long): Boolean {
|
||||
for (i in windowStart until windowStart + 25) {
|
||||
for (j in windowStart + 1 until windowStart + 25) {
|
||||
val f = input.value[i]
|
||||
val s = input.value[j]
|
||||
val f = input[i]
|
||||
val s = input[j]
|
||||
if (f + s == last && f != s) return true
|
||||
}
|
||||
}
|
||||
@@ -38,10 +34,10 @@ class Day09(@Lines val input: Input<LongArray>) {
|
||||
fun part2(): Long {
|
||||
var size = 2
|
||||
while (true) {
|
||||
for (startIndex in input.value.indices) {
|
||||
val lastIndex = input.value.size - 1 - size
|
||||
for (startIndex in input.indices) {
|
||||
val lastIndex = input.size - 1 - size
|
||||
if (startIndex + size > lastIndex) break
|
||||
val slice = input.value.sliceArray(startIndex..startIndex + size)
|
||||
val slice = input.sliceArray(startIndex..startIndex + size)
|
||||
if (slice.sum() == part1Result) return slice.minOrNull()!! + slice.maxOrNull()!!
|
||||
}
|
||||
size++
|
||||
@@ -49,8 +45,3 @@ class Day09(@Lines val input: Input<LongArray>) {
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day09>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,18 +1,16 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import org.eclipse.collections.api.list.primitive.MutableIntList
|
||||
import org.eclipse.collections.impl.factory.primitive.IntLists
|
||||
import org.eclipse.collections.impl.factory.primitive.IntLongMaps
|
||||
|
||||
@Day(10)
|
||||
class Day10(@Lines val input: Input<IntArray>) {
|
||||
class Day10(@Lines val input: IntArray) {
|
||||
|
||||
fun part1(): Int {
|
||||
val sorted = IntLists.mutable.of(0, *input.value).apply {
|
||||
val sorted = IntLists.mutable.of(0, *input).apply {
|
||||
sortThis()
|
||||
add(last + 3)
|
||||
}.toArray().toList()
|
||||
@@ -29,7 +27,7 @@ class Day10(@Lines val input: Input<IntArray>) {
|
||||
}
|
||||
|
||||
fun part2(): Long {
|
||||
val sorted: MutableIntList = IntLists.mutable.of(*input.value).apply { sortThis() }
|
||||
val sorted: MutableIntList = IntLists.mutable.of(*input).apply { sortThis() }
|
||||
|
||||
val map = IntLongMaps.mutable.empty().apply {
|
||||
put(0, 1L)
|
||||
@@ -43,8 +41,3 @@ class Day10(@Lines val input: Input<IntArray>) {
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day10>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,34 +1,32 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
|
||||
typealias Seats = Array<CharArray>
|
||||
private typealias Seats = Array<CharArray>
|
||||
|
||||
fun Seats.deepClone(): Seats = map { it.clone() }.toTypedArray()
|
||||
private fun Seats.deepClone(): Seats = map { it.clone() }.toTypedArray()
|
||||
|
||||
operator fun Seats.get(x: Int, y: Int): Char = this[y][x]
|
||||
operator fun Seats.set(x: Int, y: Int, value: Char) {
|
||||
private operator fun Seats.get(x: Int, y: Int): Char = this[y][x]
|
||||
private operator fun Seats.set(x: Int, y: Int, value: Char) {
|
||||
this[y][x] = value
|
||||
}
|
||||
|
||||
operator fun Seats.contains(xy: Pair<Int, Int>): Boolean {
|
||||
private operator fun Seats.contains(xy: Pair<Int, Int>): Boolean {
|
||||
val (x, y) = xy
|
||||
return x in 0 until width && y in 0 until height
|
||||
}
|
||||
|
||||
val Seats.width get() = first().size
|
||||
val Seats.height get() = size
|
||||
private val Seats.width get() = first().size
|
||||
private val Seats.height get() = size
|
||||
|
||||
fun Seats.asGridString() = joinToString("\n") { it.joinToString("") }
|
||||
fun Seats.countOccupied() = sumBy { it.count { it == '#' } }
|
||||
private fun Seats.asGridString() = joinToString("\n") { it.joinToString("") }
|
||||
private fun Seats.countOccupied() = sumBy { it.count { it == '#' } }
|
||||
|
||||
@Day(11)
|
||||
class Day11(@Lines val input: Input<List<String>>) {
|
||||
class Day11(@Lines val input: List<String>) {
|
||||
|
||||
private val seats: Seats = input.value.map { it.toCharArray() }.toTypedArray()
|
||||
private val seats: Seats = input.map { it.toCharArray() }.toTypedArray()
|
||||
|
||||
private val directions = listOf(
|
||||
-1 to -1,
|
||||
@@ -116,8 +114,3 @@ class Day11(@Lines val input: Input<List<String>>) {
|
||||
fun part2() = findLastRepeating(seats, ::progress2).countOccupied()
|
||||
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day11>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,13 +1,11 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import kotlin.math.abs
|
||||
|
||||
@Day(12)
|
||||
class Day12(@Lines val input: Input<List<String>>) {
|
||||
class Day12(@Lines val input: List<String>) {
|
||||
|
||||
fun part1(): Int {
|
||||
var x = 0
|
||||
@@ -16,7 +14,7 @@ class Day12(@Lines val input: Input<List<String>>) {
|
||||
|
||||
val dirs = listOf("N", "E", "S", "W")
|
||||
|
||||
input.value.forEach {
|
||||
input.forEach {
|
||||
val dir = it.take(1)
|
||||
val steps = it.drop(1).toInt()
|
||||
|
||||
@@ -50,7 +48,7 @@ class Day12(@Lines val input: Input<List<String>>) {
|
||||
var waypointX = 10
|
||||
var waypointY = -1
|
||||
|
||||
input.value.forEach {
|
||||
input.forEach {
|
||||
val dir = it.take(1)
|
||||
val steps = it.drop(1).toInt()
|
||||
|
||||
@@ -79,8 +77,3 @@ class Day12(@Lines val input: Input<List<String>>) {
|
||||
return abs(x) + abs(y)
|
||||
}
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day12>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,20 +1,18 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import kotlin.math.abs
|
||||
|
||||
data class Bus(val index: Int, val id: Long)
|
||||
private data class Bus(val index: Int, val id: Long)
|
||||
|
||||
@Day(13)
|
||||
class Day13(@Lines val input: Input<List<String>>) {
|
||||
class Day13(@Lines val input: List<String>) {
|
||||
|
||||
fun part1(): Int {
|
||||
val id = input.value[0].toInt()
|
||||
val id = input[0].toInt()
|
||||
|
||||
val (busId, min) = input.value[1]
|
||||
val (busId, min) = input[1]
|
||||
.splitToSequence(",")
|
||||
.filterNot { it == "x" }
|
||||
.map { it.toInt() }
|
||||
@@ -29,7 +27,7 @@ class Day13(@Lines val input: Input<List<String>>) {
|
||||
private fun lcm(a: Long, b: Long): Long = a / gcd(a, b) * b
|
||||
|
||||
fun part2(): Long {
|
||||
val buses = input.value[1]
|
||||
val buses = input[1]
|
||||
.splitToSequence(",")
|
||||
.mapIndexedNotNull { index, bus ->
|
||||
if (bus == "x") null
|
||||
@@ -48,8 +46,3 @@ class Day13(@Lines val input: Input<List<String>>) {
|
||||
return t
|
||||
}
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day13>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,15 +1,13 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import kotlin.math.pow
|
||||
import org.eclipse.collections.impl.factory.primitive.IntObjectMaps
|
||||
import org.eclipse.collections.impl.factory.primitive.LongIntMaps
|
||||
|
||||
@Day(14)
|
||||
class Day14(@Lines val input: Input<List<String>>) {
|
||||
class Day14(@Lines val input: List<String>) {
|
||||
|
||||
private val memRe = "mem\\[(\\d+)] = (.*)$".toRegex()
|
||||
|
||||
@@ -20,7 +18,7 @@ class Day14(@Lines val input: Input<List<String>>) {
|
||||
|
||||
var currentMask: String = ""
|
||||
|
||||
for (line in input.value) {
|
||||
for (line in input) {
|
||||
if (line.startsWith("mask")) {
|
||||
currentMask = line.removePrefix("mask = ")
|
||||
} else {
|
||||
@@ -46,7 +44,7 @@ class Day14(@Lines val input: Input<List<String>>) {
|
||||
|
||||
var currentMask = ""
|
||||
|
||||
for (line in input.value) {
|
||||
for (line in input) {
|
||||
if (line[1] == 'a') {
|
||||
currentMask = line.substring(7)
|
||||
} else {
|
||||
@@ -93,8 +91,3 @@ class Day14(@Lines val input: Input<List<String>>) {
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day14>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -2,16 +2,14 @@ package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Csv
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import kotlin.math.abs
|
||||
import org.eclipse.collections.impl.factory.primitive.IntObjectMaps
|
||||
|
||||
@Day(15)
|
||||
class Day15(@Csv val input: Input<IntArray>) {
|
||||
class Day15(@Csv val input: IntArray) {
|
||||
|
||||
private fun run(until: Int): Int {
|
||||
val start = input.value
|
||||
val start = input
|
||||
|
||||
val map = IntObjectMaps.mutable.empty<IntArray>()
|
||||
|
||||
@@ -43,11 +41,3 @@ class Day15(@Csv val input: Input<IntArray>) {
|
||||
|
||||
fun part2() = run(until = 30000000)
|
||||
}
|
||||
|
||||
fun main() {
|
||||
// val input = Input(intArrayOf(3, 1, 2))
|
||||
with(createDay<Day15>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
}
|
||||
@@ -2,8 +2,6 @@ package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Groups
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import org.eclipse.collections.api.multimap.list.ListMultimap
|
||||
import org.eclipse.collections.api.multimap.list.MutableListMultimap
|
||||
import org.eclipse.collections.api.multimap.set.MutableSetMultimap
|
||||
@@ -11,11 +9,11 @@ import org.eclipse.collections.impl.factory.Multimaps
|
||||
import org.eclipse.collections.impl.multimap.list.FastListMultimap
|
||||
|
||||
@Day(16)
|
||||
class Day16(@Groups val input: Input<List<List<String>>>) {
|
||||
class Day16(@Groups val input: List<List<String>>) {
|
||||
|
||||
private val rangesGroup = input.value[0]
|
||||
private val myTicket = input.value[1][1]
|
||||
private val nearbyTicketsGroup = input.value[2].drop(1)
|
||||
private val rangesGroup = input[0]
|
||||
private val myTicket = input[1][1]
|
||||
private val nearbyTicketsGroup = input[2].drop(1)
|
||||
|
||||
private val rangeRe = "(\\d+)-(\\d+)".toRegex()
|
||||
|
||||
@@ -148,8 +146,3 @@ class Day16(@Groups val input: Input<List<List<String>>>) {
|
||||
return rangesByName
|
||||
}
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day16>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,17 +1,15 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
|
||||
data class Point(val x: Int, val y: Int, val z: Int)
|
||||
data class Point4(val x: Int, val y: Int, val z: Int, val blah: Int)
|
||||
private data class Point(val x: Int, val y: Int, val z: Int)
|
||||
private data class Point4(val x: Int, val y: Int, val z: Int, val blah: Int)
|
||||
|
||||
enum class State { Active, Inactive }
|
||||
private enum class State { Active, Inactive }
|
||||
|
||||
@Day(17)
|
||||
class Day17(@Lines val input: Input<List<String>>) {
|
||||
class Day17(@Lines val input: List<String>) {
|
||||
|
||||
fun part1(): Int {
|
||||
val grid = parseGrid { x, y -> Point(x, y, 0) }
|
||||
@@ -27,7 +25,7 @@ class Day17(@Lines val input: Input<List<String>>) {
|
||||
|
||||
private fun <T> parseGrid(pointFactory: (x: Int, y: Int) -> T): MutableMap<T, State> {
|
||||
val grid = mutableMapOf<T, State>()
|
||||
input.value.forEachIndexed { index, row ->
|
||||
input.forEachIndexed { index, row ->
|
||||
row.forEachIndexed { col, char ->
|
||||
val state = if (char == '#') State.Active else State.Inactive
|
||||
grid[pointFactory(index, col)] = state
|
||||
@@ -87,8 +85,3 @@ class Day17(@Lines val input: Input<List<String>>) {
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day17>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -1,16 +1,14 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import java.util.*
|
||||
import org.slf4j.Logger
|
||||
import org.slf4j.LoggerFactory
|
||||
|
||||
enum class Operator { Add, Multiply }
|
||||
private enum class Operator { Add, Multiply }
|
||||
|
||||
operator fun Operator.invoke(a: Long, b: Long) = when (this) {
|
||||
private operator fun Operator.invoke(a: Long, b: Long) = when (this) {
|
||||
Operator.Add -> a + b
|
||||
Operator.Multiply -> a * b
|
||||
}
|
||||
@@ -20,10 +18,10 @@ private inline fun Logger.debug(msg: () -> Any) {
|
||||
}
|
||||
|
||||
@Day(18)
|
||||
class Day18(@Lines val input: Input<List<String>>) {
|
||||
class Day18(@Lines val input: List<String>) {
|
||||
|
||||
private val logger = LoggerFactory.getLogger("Day18")
|
||||
private val lines = input.value.map { it.replace(" ", "") }
|
||||
private val lines = input.map { it.replace(" ", "") }
|
||||
|
||||
private fun parseGroups(line: String): Map<Int, List<IntRange>> {
|
||||
var depth = 0
|
||||
@@ -170,8 +168,3 @@ class Day18(@Lines val input: Input<List<String>>) {
|
||||
.reduce { t, u -> t + u }
|
||||
.get()
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day18>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -2,15 +2,12 @@ package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Groups
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import java.util.*
|
||||
import kotlin.collections.ArrayList
|
||||
|
||||
@Day(19)
|
||||
class Day19(@Groups val input: Input<List<List<String>>>) {
|
||||
private val rules = input.value[0]
|
||||
private val messages = input.value[1]
|
||||
class Day19(@Groups val input: List<List<String>>) {
|
||||
private val rules = input[0]
|
||||
private val messages = input[1]
|
||||
|
||||
sealed class Rule {
|
||||
data class CharRule(val value: Char) : Rule()
|
||||
@@ -56,8 +53,3 @@ class Day19(@Groups val input: Input<List<List<String>>>) {
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day19>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -0,0 +1,202 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.days.geometry.Grid
|
||||
import be.vandewalleh.aoc.days.geometry.gridOf
|
||||
import be.vandewalleh.aoc.days.geometry.transformations
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Groups
|
||||
import kotlin.math.sqrt
|
||||
|
||||
private typealias Tile = Grid<Char>
|
||||
|
||||
@Day(20)
|
||||
class Day20(@Groups val input: List<List<String>>) {
|
||||
private val tiles: Map<Int, Tile> = input
|
||||
.map { it[0].let { it.substring(5 until it.indexOf(':')).toInt() } to it.drop(1) }
|
||||
.associate { (id, tile) -> id to gridOf(tile) }
|
||||
|
||||
private fun Tile.allEdges() = listOf(edges(), edges().map { it.reversed() }).flatten()
|
||||
|
||||
private fun edgesMatch(a: Tile, b: Tile): Boolean {
|
||||
val edges = b.allEdges()
|
||||
return a.allEdges().any { a -> edges.any { a == it } }
|
||||
}
|
||||
|
||||
private fun combine(tiles: List<Tile>) = sequence {
|
||||
for (i in 0 until tiles.lastIndex) {
|
||||
val a = tiles[i]
|
||||
for (j in i + 1 until tiles.size) {
|
||||
val b = tiles[j]
|
||||
yield(a to b)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private fun tilesByNeighbourCount(): MutableMap<Int, MutableList<Tile>> {
|
||||
val neighbours = combine(tiles.values.toList())
|
||||
.filter { (a, b) -> edgesMatch(a, b) }
|
||||
.map { it.toList() }
|
||||
.flatten()
|
||||
.groupBy { it }
|
||||
.values
|
||||
|
||||
val map = mutableMapOf<Int, MutableList<Tile>>()
|
||||
for (neighbour in neighbours) {
|
||||
map.computeIfAbsent(neighbour.size) { mutableListOf() }.add(neighbour.first())
|
||||
}
|
||||
return map
|
||||
}
|
||||
|
||||
fun part1() = tilesByNeighbourCount()[2]!!
|
||||
.map { tile -> tiles.entries.find { it.value == tile }!!.key.toLong() }
|
||||
.reduce { acc, id -> acc * id }
|
||||
|
||||
private fun neighboursCount(grid: Grid<*>, x: Int, y: Int): Int {
|
||||
var neighboursCount = 2
|
||||
if (x != 0 && x != grid.lastColumnIndex) neighboursCount++
|
||||
if (y != 0 && y != grid.lastRowIndex) neighboursCount++
|
||||
return neighboursCount
|
||||
}
|
||||
|
||||
private fun isLeftOk(grid: Grid<Tile?>, x: Int, y: Int, candidate: Tile) = grid[x - 1, y]
|
||||
?.let { left -> candidate.firstColumn() == left.lastColumn() }
|
||||
?: true
|
||||
|
||||
private fun isTopOk(grid: Grid<Tile?>, x: Int, y: Int, candidate: Tile) = grid[x, y - 1]
|
||||
?.let { top -> candidate.firstRow() == top.lastRow() }
|
||||
?: true
|
||||
|
||||
private fun isBottomOk(grid: Grid<*>, x: Int, y: Int, candidate: Tile, neighbours: Map<Int, List<Tile>>) =
|
||||
if (y == grid.lastRowIndex) true
|
||||
else neighbours[neighboursCount(grid, x, y + 1)]!!
|
||||
.filterNot { it == candidate }
|
||||
.count { it.transformations().any { candidate.lastColumn() == it.firstColumn() } } == 1
|
||||
|
||||
private fun isRightOk(grid: Grid<*>, x: Int, y: Int, candidate: Tile, neighbours: Map<Int, List<Tile>>) =
|
||||
if (x == grid.lastColumnIndex) true
|
||||
else neighbours[neighboursCount(grid, x + 1, y)]!!
|
||||
.filterNot { it == candidate }
|
||||
.count { it.transformations().any { candidate.lastRow() == it.firstRow() } } == 1
|
||||
|
||||
private fun assembleGrid(): Grid<Tile?> {
|
||||
val size = sqrt(tiles.size.toDouble()).toInt()
|
||||
val grid: Grid<Tile?> = Grid(Array(size) { Array(size) { null } })
|
||||
|
||||
val neighbours: MutableMap<Int, MutableList<Tile>> = tilesByNeighbourCount()
|
||||
|
||||
for (y in 0 until grid.height) {
|
||||
for (x in 0 until grid.width) {
|
||||
val neighboursCount = neighboursCount(grid, x, y)
|
||||
val candidates = neighbours[neighboursCount]!!
|
||||
|
||||
val conditions = mutableListOf<(Tile) -> Boolean>()
|
||||
conditions += { isLeftOk(grid, x, y, it) }
|
||||
conditions += { isTopOk(grid, x, y, it) }
|
||||
|
||||
// why is this condition needed ?
|
||||
if (x == 0 && y == 0) {
|
||||
conditions += { isBottomOk(grid, x, y, it, neighbours) }
|
||||
conditions += { isRightOk(grid, x, y, it, neighbours) }
|
||||
}
|
||||
|
||||
var found: Tile? = null
|
||||
|
||||
outer@ for (candidate in candidates) {
|
||||
for (transform in candidate.transformations()) {
|
||||
if (conditions.all { it(transform) }) {
|
||||
found = transform
|
||||
candidates.remove(candidate)
|
||||
break@outer
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
check(found != null)
|
||||
grid[x, y] = found
|
||||
}
|
||||
}
|
||||
|
||||
return grid
|
||||
}
|
||||
|
||||
private fun removeGaps(grid: Grid<Tile?>) {
|
||||
for (y in 0 until grid.height) {
|
||||
for (x in 0 until grid.width) {
|
||||
grid[x, y] = removeGaps(grid[x, y]!!)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private fun removeGaps(tile: Tile): Tile {
|
||||
val oldData: ArrayList<ArrayList<Char>> = tile.data
|
||||
val newData = ArrayList<ArrayList<Char>>(oldData.size - 2)
|
||||
oldData.subList(1, oldData.size - 1).forEach { d ->
|
||||
val l = ArrayList<Char>().apply {
|
||||
addAll(d.subList(1, d.size - 1))
|
||||
}
|
||||
newData.add(l)
|
||||
}
|
||||
return Tile(newData)
|
||||
}
|
||||
|
||||
private fun gridToTile(grid: Grid<Tile?>): Tile {
|
||||
val newData = ArrayList<ArrayList<Char>>()
|
||||
for (y in 0 until grid.height) {
|
||||
val row = grid.row(y)
|
||||
for (yy in 0 until row[0]!!.height) {
|
||||
val combinedRow = ArrayList<Char>().also { newData.add(it) }
|
||||
row.forEach { combinedRow.addAll(it!!.row(yy)) }
|
||||
}
|
||||
}
|
||||
return Tile(newData)
|
||||
}
|
||||
|
||||
private fun Tile.subGridData(startX: Int, startY: Int, width: Int, height: Int): List<List<Char>> {
|
||||
val newData = ArrayList<ArrayList<Char>>()
|
||||
for (y in startY until startY + height) {
|
||||
val row = ArrayList<Char>().also { newData.add(it) }
|
||||
for (x in startX until startX + width) {
|
||||
row.add(this[x, y]!!)
|
||||
}
|
||||
}
|
||||
return newData
|
||||
}
|
||||
|
||||
private fun List<List<Char>>.isMonster(monster: List<List<Char>>): Boolean {
|
||||
val monsterRe = monster.joinToString("") { it.joinToString("") }.replace(" ", ".").toRegex()
|
||||
val str = this.joinToString("") { it.joinToString("") }
|
||||
return monsterRe.matches(str)
|
||||
}
|
||||
|
||||
fun part2(): Int {
|
||||
val grid = assembleGrid()
|
||||
removeGaps(grid)
|
||||
val megaTile = gridToTile(grid)
|
||||
|
||||
val monster: List<List<Char>> = """
|
||||
| # |
|
||||
|# ## ## ###|
|
||||
| # # # # # # |
|
||||
""".trimMargin("|").lines().map { it.toCharArray().dropLast(1) }
|
||||
|
||||
val monsterWidth = monster[0].size
|
||||
val monsterHeight = 3
|
||||
val monsterSquares = monster.flatten().count { it == '#' }
|
||||
val squares = megaTile.data.flatten().count { it == '#' }
|
||||
|
||||
for (g in megaTile.transformations()) {
|
||||
var count = 0
|
||||
for (y in 0 until g.lastRowIndex - monsterHeight) {
|
||||
for (x in 0 until g.lastColumnIndex - monsterWidth) {
|
||||
val subgrid = g.subGridData(x, y, monsterWidth, monsterHeight)
|
||||
if (subgrid.isMonster(monster)) {
|
||||
count++
|
||||
}
|
||||
}
|
||||
}
|
||||
if (count != 0) return squares - (count * monsterSquares)
|
||||
}
|
||||
error("No monsters found")
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,16 +1,14 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import org.eclipse.collections.api.factory.Bags
|
||||
import org.eclipse.collections.api.multimap.set.MutableSetMultimap
|
||||
import org.eclipse.collections.impl.factory.Multimaps
|
||||
|
||||
@Day(21)
|
||||
class Day21(@Lines val input: Input<List<String>>) {
|
||||
private val foods = input.value.map { line ->
|
||||
class Day21(@Lines val input: List<String>) {
|
||||
private val foods = input.map { line ->
|
||||
val parOpen = line.indexOf('(')
|
||||
val ingredients = line.substring(0 until parOpen - 1).split(" ")
|
||||
val allergens = line.substring(parOpen + 1 until line.length - 1).removePrefix("contains ").split(", ")
|
||||
@@ -57,8 +55,3 @@ class Day21(@Lines val input: Input<List<String>>) {
|
||||
return map
|
||||
}
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day21>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -2,15 +2,13 @@ package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Groups
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
|
||||
data class PlayedGame(val a: List<Int>, val b: List<Int>)
|
||||
private data class PlayedGame(val a: List<Int>, val b: List<Int>)
|
||||
|
||||
@Day(22)
|
||||
class Day22(@Groups val input: Input<List<List<String>>>) {
|
||||
private val one = input.value[0].drop(1).map { it.toInt() }
|
||||
private val two = input.value[1].drop(1).map { it.toInt() }
|
||||
class Day22(@Groups val input: List<List<String>>) {
|
||||
private val one = input[0].drop(1).map { it.toInt() }
|
||||
private val two = input[1].drop(1).map { it.toInt() }
|
||||
|
||||
fun part1(): Long {
|
||||
val oneDeque = ArrayDeque(one)
|
||||
@@ -76,9 +74,3 @@ class Day22(@Groups val input: Input<List<List<String>>>) {
|
||||
return if (one.isEmpty()) 2 else 1
|
||||
}
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day22>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
|
||||
@@ -1,13 +1,11 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.Text
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
|
||||
@Day(23)
|
||||
class Day23(@Text val input: Input<String>) {
|
||||
private val cups = input.value.toCharArray().map { it.toString().toInt() }
|
||||
class Day23(@Text val input: String) {
|
||||
private val cups = input.toCharArray().map { it.toString().toInt() }
|
||||
|
||||
private fun <T> ringSequence(head: Ring.Node<T>) = generateSequence(head) { it.next }
|
||||
|
||||
@@ -111,8 +109,3 @@ class Day23(@Text val input: Input<String>) {
|
||||
return current.next
|
||||
}
|
||||
}
|
||||
|
||||
fun main() = with(createDay<Day23>()) {
|
||||
println(part1())
|
||||
println(part2())
|
||||
}
|
||||
@@ -0,0 +1,65 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
import org.eclipse.collections.api.bag.Bag
|
||||
import org.eclipse.collections.api.bag.MutableBag
|
||||
import org.eclipse.collections.api.factory.Bags
|
||||
|
||||
@Day(24)
|
||||
class Day24(@Lines val input: List<String>) {
|
||||
|
||||
private data class HexPoint(val x: Int, val y: Int, val z: Int) {
|
||||
fun translate(other: HexPoint) = HexPoint(this.x + other.x, this.y + other.y, this.z + other.z)
|
||||
}
|
||||
|
||||
private enum class Direction(vararg coordinates: Int) {
|
||||
E(1, -1, 0),
|
||||
SE(0, -1, 1),
|
||||
SW(-1, 0, 1),
|
||||
W(-1, 1, 0),
|
||||
NW(0, 1, -1),
|
||||
NE(1, 0, -1);
|
||||
|
||||
val coordinates = HexPoint(coordinates[0], coordinates[1], coordinates[2])
|
||||
}
|
||||
|
||||
private fun parseTile(line: String) = "e|se|sw|w|nw|ne".toRegex()
|
||||
.findAll(line)
|
||||
.flatMap { it.groupValues }
|
||||
.map { Direction.valueOf(it.toUpperCase()) }
|
||||
.toList()
|
||||
|
||||
private val tiles = input.map { parseTile(it) }.map {
|
||||
it.map { it.coordinates }.reduce { acc, ints -> acc.translate(ints) }
|
||||
}
|
||||
|
||||
fun part1() = Bags.immutable.ofAll(tiles).selectBlacks().size()
|
||||
|
||||
private fun Bag<HexPoint>.selectBlacks() = selectByOccurrences { it % 2 == 1 }
|
||||
|
||||
private fun HexPoint.adjacents() = Direction.values().map { this.translate(it.coordinates) }
|
||||
|
||||
// black -> odd
|
||||
// white -> even || not in bag -> !in black
|
||||
private fun day(bag: MutableBag<HexPoint>) {
|
||||
val blacks = bag.selectBlacks().toSet()
|
||||
|
||||
val all = (bag + bag.flatMap { it.adjacents() }).toSet()
|
||||
|
||||
for (tile in all) {
|
||||
val adjacents = tile.adjacents()
|
||||
val adjacentBlacks = adjacents.count { it in blacks }
|
||||
val isBlack = tile in blacks
|
||||
|
||||
if (isBlack && (adjacentBlacks == 0 || adjacentBlacks > 2)) bag.setOccurrences(tile, 2)
|
||||
else if (!isBlack && adjacentBlacks == 2) bag.setOccurrences(tile, 1)
|
||||
}
|
||||
}
|
||||
|
||||
fun part2(): Int {
|
||||
val bag = Bags.mutable.ofAll(tiles)
|
||||
repeat(100) { day(bag) }
|
||||
return bag.selectBlacks().size()
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,44 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import be.vandewalleh.aoc.utils.input.Lines
|
||||
|
||||
@Day(25)
|
||||
class Day25(@Lines val input: IntArray) {
|
||||
private val doorPublicKey = input[0]
|
||||
private val cardPublicKey = input[1]
|
||||
|
||||
private fun encryptionKey(loopSize: Int, publicKey: Int) = transformSubjectNumber(loopSize, publicKey)
|
||||
|
||||
private fun transformSubjectNumber(loopSize: Int, subjectNumber: Int): Int {
|
||||
var number = 1L
|
||||
repeat(loopSize) {
|
||||
number *= subjectNumber
|
||||
number %= 20201227
|
||||
}
|
||||
return number.toInt()
|
||||
}
|
||||
|
||||
private fun transformSubjectNumberStartingWith(currentNumber: Long, subjectNumber: Int): Long {
|
||||
var number = currentNumber
|
||||
number *= subjectNumber
|
||||
number %= 20201227
|
||||
return number
|
||||
}
|
||||
|
||||
private fun findLoopSize(expectedPublicKey: Long): Int {
|
||||
var computedPublicKey = 1L
|
||||
var loopSize = 0
|
||||
do {
|
||||
computedPublicKey = transformSubjectNumberStartingWith(computedPublicKey, 7)
|
||||
loopSize++
|
||||
} while (computedPublicKey != expectedPublicKey)
|
||||
return loopSize
|
||||
}
|
||||
|
||||
fun part1(): Int {
|
||||
val cardLoopSize = findLoopSize(cardPublicKey.toLong())
|
||||
return encryptionKey(cardLoopSize, doorPublicKey)
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,7 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.factory.createDay
|
||||
|
||||
fun main() = with(createDay<Day15>()) {
|
||||
println(part1())
|
||||
}
|
||||
@@ -44,13 +44,6 @@ class Grid<T> {
|
||||
|
||||
fun edges() = listOf(row(0), column(0), row(lastRowIndex), column(lastColumnIndex))
|
||||
|
||||
fun neighbours(x: Int, y: Int) = listOf(
|
||||
x to y - 1,
|
||||
x + 1 to y,
|
||||
x to y + 1,
|
||||
x - 1 to y,
|
||||
).mapNotNull { this[x, y] }
|
||||
|
||||
override fun toString() = buildString {
|
||||
data.forEach { line ->
|
||||
append(line.joinToString(""))
|
||||
-2
@@ -1,7 +1,5 @@
|
||||
package be.vandewalleh.aoc.days.geometry
|
||||
|
||||
import java.util.*
|
||||
|
||||
private fun <T> ArrayList<T>.reversed(): ArrayList<T> {
|
||||
val out = ArrayList<T>(this.size)
|
||||
asReversed().forEach { out.add(it) }
|
||||
@@ -0,0 +1,419 @@
|
||||
eeneseeeneeseweeeneswneenwwee
|
||||
swswswneswwseenwsenwsweswse
|
||||
wswswswnweswnwswswwwswswswweswswswsew
|
||||
seswswnweswswswseseseswswswswswswseswse
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||||
nwswswswswseseswseseswswswswseswswsenwsw
|
||||
nwnwnwnwnenesenwneneswswwswnenenwnwnw
|
||||
ewwwwwswswwwwwnwnewwwwwww
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||||
nwswneewwwsewnwswnwneswnenwnwsenweswnw
|
||||
seseseseseseeswsesenweswwseswseseswse
|
||||
wwnwwsewenwsww
|
||||
nwnwsenwnwenwnwnwnwwwnwnwnwwnwswwnw
|
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|
||||
swenwwswswswseneneneseswswnwnenwswee
|
||||
eseeseseseeeswseeneweneeeseese
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nwswswnwnwswsweeweseswswswseswswsesee
|
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swswswwseswnenwneneswseseswsweseswswnw
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nwnwnenwnenwnenwneswnw
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||||
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|
||||
nenenenwneneneneneneeneneneswnenenenene
|
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wwenwswwnwsenwwsenenenwnwsw
|
||||
nwnewnwnwnwnwnwnenwsenwneewnwnwsenwwse
|
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swwnewwsenwwswwwwswwswswse
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senwswseseswswseseswseswswsewswseswsesee
|
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swswweswnwswwswwswwswswswww
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wwwwswwnwwwwwnenwewnwwwnwnww
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wewwweswneswswseseswwnewwsenenw
|
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senwsesesesesesenwswseseseeseseseseseswse
|
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seseseswswswswseswseesesesenwse
|
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swnwswswswsweswseswswswswswswswsw
|
||||
wewwenewnwnwwewwweswnwswsww
|
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wwsenesewwwwwnewswwwwswnwwwsw
|
||||
nwsenenenewenwnwnenwnenwnwnwnwnwnwnene
|
||||
wenwweswswewnenwswnwswwwsewnesw
|
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swnwwswneswneeswsesenwseswnwseseneseseswsw
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||||
nesenwnwnenenenwnwnwnenwnwnwnwwnenenenw
|
||||
eneswswneeseenenwweeeeweeeee
|
||||
swneneneneeneneneweneneneneneneneneseene
|
||||
nesenwsewewseswseseseseswseneswnesene
|
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nwnewewneswwsewwwwsewsewwnew
|
||||
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||||
nwswwnwsweswnwnwseewnwnwwneewsew
|
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neswswsewswswseswsenwswswneseesww
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eenwnwwenwswswswneseseseneeweenwsw
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||||
seseswswseswnwseseswsesewswseseseseneswe
|
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sewwnwnwswnwnwnwwwnwnwnwewnwwnww
|
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sewswwswwnwnesewswwswnwesewswwnw
|
||||
seswswseseswsenwswseswseswseswseswswesw
|
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wseneseseswseswseswseswseseseswsesenwsese
|
||||
eseeneswwswnwnwse
|
||||
swswswswsenwseswswswseesesesw
|
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wswswswwneswswswswsweswswwswnwwswswsww
|
||||
nwnwnwneswneswswnwnwneswnwnenwnwseenwe
|
||||
swsesewnwseseseeswswswseseseseseseswsese
|
||||
senwsenwnwnwnwnwnwnwnwnwwnwnwnwnewwnwnwnw
|
||||
nweeesweeseenweneesenweseswwse
|
||||
sesesewseneewseseeeseeeesee
|
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sweswswswnenwswswswnwseswsewswswwee
|
||||
nwwwsewseeseneseesesewseneseenee
|
||||
nwnenenenwswneneneneenenenene
|
||||
seswwseseseseseseseseseswseesesesesenw
|
||||
neneswnwneneenenenwneneswnwnw
|
||||
seseseeeswewneneswnwswwsenwesewnee
|
||||
swwseswseswwsweswswneswswswseseswsw
|
||||
neneewewneneneneeewneeenenesee
|
||||
seneeseseeseesenweseseseseseswseseese
|
||||
nenwwwwwswswwwwnwwwwwnwewww
|
||||
swswswswswswswswnewnwswswswseeswswswsesw
|
||||
seseeeseswsesesesesesewsenewsesenwswse
|
||||
swswswswswsweswswwswnwnwneswwsweseswsw
|
||||
nwsweswnwnwnwnenenwnesenwnwnwnwwnwnwnwwse
|
||||
seseseseseseseseesesenwwseeseneseesese
|
||||
weneseseeseseswsweseneneneesesweswne
|
||||
seseseswseswesesenwsesesesesesesesesewne
|
||||
neswnwnwnwnewnewseenwnwswsenwnwnwnwsw
|
||||
neswnwnewneswewseeneneneneneeeeenee
|
||||
nwnwnwwnwenwwswneww
|
||||
nwenwnwswwnwnwwnesenwswnwnwnwnwsenwnwenw
|
||||
seseswswswswnwswswswswswnwsweswseseswswswse
|
||||
neneenenwneseneneneneseneeneneneenwnene
|
||||
ewwnwnwwwwwwwwwww
|
||||
nwnenenwneseneneswsenewnenenwsenwnenwnene
|
||||
wsesewwnenenwswnwwweewsenwnw
|
||||
nwnwsesenwenwnwwwnwwsenwnewnwnenwsesw
|
||||
swswwsesesewwneeswseneswwneswneswswne
|
||||
enwnwswnweswswnwenwnwnwnwnwnwnwnwnweswnw
|
||||
eseeswnwnesewseneeenwsesenwsewswwne
|
||||
neswwseneswseweswseswswnwnese
|
||||
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|
||||
nenenwnenenenenwneneswenenwnenene
|
||||
neneswnwneswwswnwnesenenenenenwnenwnenenw
|
||||
wnenenwsenwnenwnenenwnwnenwnwnwsenenewne
|
||||
wnwnwnwnwnwwnwsenwnwnwnwnwnwnwnw
|
||||
eswseswswseswswsweswnenwswswswswswswnwsww
|
||||
wswwseseseseswseseseseseseswseneseseese
|
||||
seeseeeseseseseenwsesesesesenweseesw
|
||||
eswnwseswsenwswwnenwswswswnesweswswwsw
|
||||
neeseenewneneesw
|
||||
nwenenewswseeneswenewswnwseswwwene
|
||||
wswwenwwenwseeswnewswsewnwneseswwne
|
||||
eseswseesewseseseenwesesese
|
||||
nenenenenweneneswnewnenenenenenenenwne
|
||||
seseneneeseswwseneseswnwneseseeenwesw
|
||||
seeswseeeeswnweeeeenweeweee
|
||||
seeeenweseseseesesweenweseneee
|
||||
neneewnwneneseneswnesenenwenenwnenesw
|
||||
nwnewnwenwnwnwswnenwnwnwnwnwnwnwsenwnwnw
|
||||
ewsweswseswswswwewneswwwswesww
|
||||
eneeseseeeeseseswwseeseseseeene
|
||||
nwsesesewwnwnewnesenwnewwseseenew
|
||||
sewswswswseseswswswseswseswswswneeswnwswe
|
||||
neswneswnenenenenewnesenwnwnenwneswnenenene
|
||||
nwnwnwnwnesenwwnwnwnwnenwnwswnwnwwnwnwnw
|
||||
swseseseswswsewneswsenesenwenenwseseese
|
||||
neswseseseswseswsesesewsesesesese
|
||||
seseeeswnwseeeswseseseesenwseseee
|
||||
swneswswswwswsenwswswswseswswswswseswswswsw
|
||||
wsenwswwwwswswww
|
||||
nwseswseesewseeswsewswnenesenwsew
|
||||
nesweeseeweenenenweneswnenenee
|
||||
wnwwwnwwwswnewwnwnwwewnwnwnww
|
||||
wnwnenwswswnwnwsweesenenweswnewenw
|
||||
seeseesenwseseseeeseseeseeseese
|
||||
swseswswwswenwswswswswswswnenwswswswswse
|
||||
eswseswwwnewwsewwwwwswswenesw
|
||||
wnwnwswwnwnwswnwnwnenwwwwnwnwnweeww
|
||||
seswwseswnesweswswseseswswseswseswswswse
|
||||
nwnenwnwneneneneswneneswnwswnenenwneeneswne
|
||||
swwwewswwnwwewwswwswswwswwwsw
|
||||
seneenwswwseeseseneewenwseneswnewe
|
||||
wwsenesesesenewewnesweseewsesw
|
||||
nwwswwwesewwwwwwnwwwwwwwnww
|
||||
newwnwwnenwwswsesewswseseewwnwwwsw
|
||||
newswswseswswswwswswwswsww
|
||||
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|
||||
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|
||||
eeeeeneeeeeeseeswenwnweeeee
|
||||
wwnewnwenewewsewseseneweswswne
|
||||
wnwwswneneneneseneseneweseenwneseneee
|
||||
swewnwwnwnwneseneewneneneneene
|
||||
enwnwseeneeneneeeneneeeneeswnene
|
||||
sewswseneswwseeswneswseswnesenw
|
||||
nenenwnenenwseneneneneseswnenenenewnene
|
||||
eseseseseeeseeseseeseenwsesesenewsw
|
||||
newenewnesweeeswneeeseenwnenee
|
||||
wswswsenwswswsweswneneswswswswswsesesw
|
||||
wsesenwsesesewsesesenesesesesenesese
|
||||
eseswswseswswswswnwswswsenenwswseswswsesw
|
||||
nwsewsewswswwwnwsenewnwwwwnwew
|
||||
seeseeweewwsenwwneneneeswesewne
|
||||
nwsweseswseseseswneeseseswnwseswsenesw
|
||||
seswswswwneswsesenesewswnenwswswseswwse
|
||||
seeseweseseneswnwseseseesweenwsenw
|
||||
sweswseswwwswnwswnenwwsewswwnwswsw
|
||||
eeeeeeeneswneneeneeswnweenwnese
|
||||
nwwwnwnwwwsewnwwswnwnenwnwwwww
|
||||
swswseseswswsenwswswswneseseswsewseswswsee
|
||||
eseeeseseeseseewsenenwewsese
|
||||
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|
||||
wneenesesenenwwnenwnwneswsenenweswne
|
||||
wswnewwwwwwwwww
|
||||
enenwnenenwnwnwnwnwnwwnenw
|
||||
nenweswswswnenwnenwseneeswesewnenenew
|
||||
neeneneswnenwneswsweeneneeneenwnenene
|
||||
sesesesesesesesenwnwesesesenwwesesese
|
||||
wswwswswswwnwnwwseswswwswswsew
|
||||
nwneseewnwnwnenwnewnenenenwnenwnenwnenw
|
||||
neeeneeeneeeneeeneenesweneenew
|
||||
seswneswsenwesesesewseswseswsesewsesw
|
||||
neswnenesenenwneneneswnenenenenenenenenene
|
||||
neswwswswnwswswswswswsesweswswswswswsw
|
||||
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|
||||
swnwswwswswswswesweswseseswswseseswsw
|
||||
wsenenwsenwnewsenwnwnwsw
|
||||
nwnwenwsewwswwnwweswnwsewsewnesew
|
||||
nwnwenwnenwnwnwwnwnenwnenwnw
|
||||
newneweneneneenenenwnw
|
||||
swenesesenesesesesesewseneswsesesesese
|
||||
swneneneneseeseeneeseeneewswwwww
|
||||
nwnwnwenwnwnwnwwnwwwnwnwnenwnwswnwse
|
||||
nwnenwneneswesenwswsewnenwnwnwnenwswese
|
||||
seseswswswswsweseseseswnwsesw
|
||||
nwenenwneneneneneenenenesweneneswnenene
|
||||
nenwwwnwsenwnwnwnwnwsenwnwnwnwnenwnwnwnese
|
||||
neneeeeweneeneneswnwnenenwneneswne
|
||||
wwwneswnwnwnwwnwnwewnwnwwwwsenew
|
||||
eenweeeeeesweeeeeee
|
||||
eneweseseeeswewsewseswsenwesenw
|
||||
nenenwnenenenwseswsewnenenwneswnw
|
||||
nwwwswnwswnwnenwwenwnwnwnenwswnwnwnw
|
||||
eswseneeeewenweeseswsewseenee
|
||||
wswswnwneseswseseneswsww
|
||||
sewwwwwnwwwwwnenwwwwwnwwnw
|
||||
enwnwnwwwnwwsenwsewnwwsewswwnwwnw
|
||||
swseswenwenewnesweseswnewsenwseswwwsw
|
||||
nwswwnwnwnwnwenwnwwnwnwwwnwnwnwnww
|
||||
wenwswnenenenenenwne
|
||||
swwwnwnwwwwnwewwwwnwnwenwnwnw
|
||||
nwswneswneswsenenesenenwnwwnenwnwneene
|
||||
neneswneweneneeeweneneeeenenwene
|
||||
neenweneswnwneneneneneneneneswnenenwnenene
|
||||
wswnwwwwnwwnwweeswnwwnwwwew
|
||||
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|
||||
seeneeseseseswswsenwnwseneeesweee
|
||||
eneeneseenesenenenenenenwwwneeneswse
|
||||
swseneenenenenenenesenesenewwnwnenene
|
||||
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|
||||
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|
||||
@@ -0,0 +1,2 @@
|
||||
1327981
|
||||
2822615
|
||||
@@ -0,0 +1,6 @@
|
||||
org.slf4j.simpleLogger.logFile=System.out
|
||||
org.slf4j.simpleLogger.showDateTime=true
|
||||
org.slf4j.simpleLogger.dateTimeFormat=yyyy-MM-dd HH:mm:ss:SSS Z
|
||||
org.slf4j.simpleLogger.defaultLogLevel=info
|
||||
org.slf4j.simpleLogger.log.io.micronaut=info
|
||||
org.slf4j.simpleLogger.log.io.micronaut.context.lifecycle=info
|
||||
@@ -1,13 +1,12 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import io.micronaut.context.BeanContext
|
||||
import io.micronaut.context.getBean
|
||||
import be.vandewalleh.aoc.utils.factory.createDay
|
||||
import org.assertj.core.api.Assertions.assertThat
|
||||
import org.junit.jupiter.api.Test
|
||||
|
||||
class Day01Test {
|
||||
|
||||
private val day = BeanContext.run().getBean<Day01>()
|
||||
private val day = createDay<Day01>()
|
||||
|
||||
@Test
|
||||
fun `part1 result`() {
|
||||
@@ -1,8 +1,8 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import be.vandewalleh.aoc.utils.factory.createDay
|
||||
import org.assertj.core.api.Assertions.assertThat
|
||||
import org.junit.jupiter.api.Disabled
|
||||
import org.junit.jupiter.api.Nested
|
||||
import org.junit.jupiter.api.Test
|
||||
|
||||
@@ -22,7 +22,7 @@ class Day03Test {
|
||||
"#.##...#...",
|
||||
"#...##....#",
|
||||
".#..#...#.#",
|
||||
).let { Input(it) }
|
||||
)
|
||||
|
||||
private val day03 = Day03(example)
|
||||
|
||||
@@ -43,11 +43,13 @@ class Day03Test {
|
||||
private val day03 = createDay<Day03>()
|
||||
|
||||
@Test
|
||||
@Disabled
|
||||
fun `part1 result`() {
|
||||
assertThat(day03.part1()).isEqualTo(294)
|
||||
}
|
||||
|
||||
@Test
|
||||
@Disabled
|
||||
fun `part2 result`() {
|
||||
assertThat(day03.part2()).isEqualTo(5774564250)
|
||||
}
|
||||
@@ -1,7 +1,6 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import be.vandewalleh.aoc.utils.factory.createDay
|
||||
import org.assertj.core.api.Assertions.assertThat
|
||||
import org.junit.jupiter.api.Assertions
|
||||
import org.junit.jupiter.api.Nested
|
||||
@@ -26,7 +25,6 @@ class Day04Test {
|
||||
hcl:#cfa07d eyr:2025 pid:166559648
|
||||
iyr:2011 ecl:brn hgt:59in
|
||||
""".trimIndent()
|
||||
.let { Input(it) }
|
||||
|
||||
private val day04 = Day04(example)
|
||||
|
||||
@@ -63,7 +61,7 @@ class Day04Test {
|
||||
hgt:59cm ecl:zzz
|
||||
eyr:2038 hcl:74454a iyr:2023
|
||||
pid:3556412378 byr:2007
|
||||
""".trimIndent().let { Input(it) }
|
||||
""".trimIndent()
|
||||
|
||||
assertThat(Day04(input).part2()).isEqualTo(0)
|
||||
}
|
||||
@@ -83,7 +81,7 @@ class Day04Test {
|
||||
eyr:2022
|
||||
|
||||
iyr:2010 hgt:158cm hcl:#b6652a ecl:blu byr:1944 eyr:2021 pid:093154719
|
||||
""".trimIndent().let { Input(it) }
|
||||
""".trimIndent()
|
||||
|
||||
assertThat(Day04(input).part2()).isEqualTo(4)
|
||||
}
|
||||
@@ -1,6 +1,6 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import be.vandewalleh.aoc.utils.factory.createDay
|
||||
import org.assertj.core.api.Assertions.assertThat
|
||||
import org.junit.jupiter.api.Test
|
||||
|
||||
@@ -1,6 +1,5 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import org.assertj.core.api.Assertions.assertThat
|
||||
import org.junit.jupiter.params.ParameterizedTest
|
||||
import org.junit.jupiter.params.provider.CsvSource
|
||||
@@ -20,7 +19,7 @@ class Day13Test {
|
||||
)
|
||||
@ParameterizedTest
|
||||
fun examples(buses: String, answer: Long) {
|
||||
val input = Input(listOf("", buses))
|
||||
val input = listOf("", buses)
|
||||
assertThat(Day13(input).part2()).isEqualTo(answer)
|
||||
}
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import be.vandewalleh.aoc.utils.factory.createDay
|
||||
import java.util.concurrent.TimeUnit
|
||||
import org.openjdk.jmh.annotations.*
|
||||
import org.openjdk.jmh.infra.Blackhole
|
||||
@@ -1,6 +1,6 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.createDay
|
||||
import be.vandewalleh.aoc.utils.factory.createDay
|
||||
import java.util.concurrent.TimeUnit
|
||||
import org.openjdk.jmh.annotations.*
|
||||
import org.openjdk.jmh.infra.Blackhole
|
||||
@@ -1,6 +1,5 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.input.Input
|
||||
import org.assertj.core.api.Assertions.assertThat
|
||||
import org.junit.jupiter.params.ParameterizedTest
|
||||
import org.junit.jupiter.params.provider.CsvSource
|
||||
@@ -17,7 +16,7 @@ class Day18Test {
|
||||
])
|
||||
@ParameterizedTest
|
||||
fun examplesPart2(input: String, output: Long) {
|
||||
val day18 = Day18(Input(listOf(input)))
|
||||
val day18 = Day18(listOf(input))
|
||||
assertThat(day18.part2()).isEqualTo(output)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,7 @@
|
||||
plugins {
|
||||
id("aoc")
|
||||
}
|
||||
|
||||
application {
|
||||
mainClass.set("be.vandewalleh.aoc.days.MainKt")
|
||||
}
|
||||
@@ -0,0 +1 @@
|
||||
target area: x=20..30, y=-10..-5
|
||||
@@ -0,0 +1 @@
|
||||
target area: x=139..187, y=-148..-89
|
||||
@@ -0,0 +1,42 @@
|
||||
import nre, strutils
|
||||
|
||||
let
|
||||
regex = re"x=(-?\d+)..(-?\d+), y=(-?\d+)..(-?\d+)"
|
||||
data = readFile("input.txt")
|
||||
captures = data.find(regex).get.captures
|
||||
x1 = captures[0].parseInt()
|
||||
x2 = captures[1].parseInt()
|
||||
y1 = captures[2].parseInt()
|
||||
y2 = captures[3].parseInt()
|
||||
minX = min(x1, x2)
|
||||
maxX = max(x1, x2)
|
||||
minY = min(y1, y2)
|
||||
maxY = max(y1, y2)
|
||||
|
||||
proc land(dx: int, dy: int): int =
|
||||
var dx = dx
|
||||
var dy = dy
|
||||
var x = 0
|
||||
var y = 0
|
||||
var high = y
|
||||
while x < maxX and y > minY:
|
||||
x += dx
|
||||
y += dy
|
||||
if dx > 0: dx -= 1
|
||||
elif dx < 0: dx += 1
|
||||
dy -= 1
|
||||
high = max(high, y)
|
||||
if x in minX..maxX and y in minY..maxY:
|
||||
return high
|
||||
return -1
|
||||
|
||||
var high = 0
|
||||
var match = 0
|
||||
for x in -1000..1000:
|
||||
for y in -1000..1000:
|
||||
let res = land(x, y)
|
||||
if res != -1: match += 1
|
||||
high = max(res, high)
|
||||
|
||||
echo(high)
|
||||
echo(match)
|
||||
@@ -0,0 +1,29 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
class Counter<K> : Iterable<Map.Entry<K, Long>> {
|
||||
private val map = HashMap<K, Long>()
|
||||
operator fun get(key: K) = map[key] ?: 0L
|
||||
|
||||
operator fun set(key: K, count: Long) {
|
||||
map[key] = count
|
||||
}
|
||||
|
||||
operator fun set(key: K, count: Int) {
|
||||
if (count == 0)
|
||||
map.remove(key)
|
||||
else
|
||||
map[key] = count.toLong()
|
||||
}
|
||||
|
||||
fun toMap() = map.toMap(HashMap())
|
||||
override fun toString() = map.toString()
|
||||
|
||||
fun minValue() = map.minOf { it.value }
|
||||
fun maxValue() = map.maxOf { it.value }
|
||||
|
||||
override fun iterator() = toMap().iterator()
|
||||
|
||||
companion object
|
||||
}
|
||||
|
||||
operator fun <T> Counter.Companion.invoke(items: Iterable<T>) = Counter<T>().apply { items.forEach { this[it] += 1 } }
|
||||
@@ -0,0 +1,27 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
|
||||
@Day
|
||||
class Day01 : BaseDay() {
|
||||
private val items by lazy { input.lines.ints }
|
||||
|
||||
override fun part1(): Int {
|
||||
var count = 0
|
||||
for (i in 0 until items.size - 1) {
|
||||
if (items[i] < items[i + 1]) count++
|
||||
}
|
||||
return count
|
||||
}
|
||||
|
||||
override fun part2(): Int {
|
||||
var count = 0
|
||||
for (i in 0 until items.size - 3) {
|
||||
val a = items.drop(i).take(3).sum()
|
||||
val b = items.drop(i + 1).take(3).sum()
|
||||
if (b > a) count++
|
||||
}
|
||||
return count
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,40 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
|
||||
@Day
|
||||
class Day02 : BaseDay() {
|
||||
private val lines by lazy { input.lines.value.map { it.split(' ').let { it[0] to it[1].toInt() } } }
|
||||
|
||||
override fun part1(): Int {
|
||||
var horizontalPosition = 0
|
||||
var depth = 0
|
||||
lines.forEach { (direction, value) ->
|
||||
when (direction) {
|
||||
"forward" -> horizontalPosition += value
|
||||
"down" -> depth += value
|
||||
"up" -> depth -= value
|
||||
}
|
||||
}
|
||||
return horizontalPosition * depth
|
||||
}
|
||||
|
||||
override fun part2(): Any {
|
||||
var horizontalPosition = 0
|
||||
var depth = 0
|
||||
var aim = 0
|
||||
lines.forEach { (direction, value) ->
|
||||
when (direction) {
|
||||
"forward" -> {
|
||||
horizontalPosition += value
|
||||
depth += aim * value
|
||||
}
|
||||
"down" -> aim += value
|
||||
"up" -> aim -= value
|
||||
}
|
||||
}
|
||||
return horizontalPosition * depth
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,36 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
|
||||
@Day
|
||||
class Day03 : BaseDay() {
|
||||
override fun part1(): Int {
|
||||
val moreOnes = input.lines.value[0].indices
|
||||
.map { i -> input.lines.value.map { it[i] } }
|
||||
.map { it.count { it == '1' } >= it.size / 2 }
|
||||
|
||||
val gamma = moreOnes.joinToString("") { if (it) "1" else "0" }.toInt(radix = 2)
|
||||
val epsilon = moreOnes.joinToString("") { if (!it) "1" else "0" }.toInt(radix = 2)
|
||||
return gamma * epsilon
|
||||
}
|
||||
|
||||
override fun part2(): Any {
|
||||
val o2 = findNumber(input.lines.value) { ones, zeros -> if (ones >= zeros) '1' else '0' }
|
||||
val co2 = findNumber(input.lines.value) { ones, zeros -> if (zeros <= ones) '0' else '1' }
|
||||
return o2 * co2
|
||||
}
|
||||
|
||||
private fun findNumber(input: List<String>, keep: (Int, Int) -> Char): Int {
|
||||
var numbers = input
|
||||
for (i in this.input.lines.value[0].indices) {
|
||||
if (numbers.size == 1) break
|
||||
val eachCount = numbers.map { it[i] }.groupingBy { it }.eachCount()
|
||||
val ones = eachCount['1'] ?: 0
|
||||
val zeros = eachCount['0'] ?: 0
|
||||
val maj = keep(ones, zeros)
|
||||
numbers = numbers.filter { it[i] == maj }
|
||||
}
|
||||
return numbers[0].toInt(2)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,33 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
|
||||
@Day
|
||||
class Day04 : BaseDay() {
|
||||
private val numbers by lazy { input.lines.value[0].split(',').map { it.toInt() } }
|
||||
private val boards by lazy {
|
||||
input.text.split("\n\n")
|
||||
.drop(1)
|
||||
.map { it.lines().map { it.trim().split("\\s+".toRegex()).map { it.toInt() } } }
|
||||
}
|
||||
|
||||
private val results by lazy { boards.map { playBoard(it) } }
|
||||
|
||||
override fun part1() = results.minByOrNull { it.first }!!.second
|
||||
override fun part2() = results.maxByOrNull { it.first }!!.second
|
||||
|
||||
private fun playBoard(board: List<List<Int>>): Pair<Int, Int> {
|
||||
for (round in numbers.indices) {
|
||||
val usedNumbers = numbers.take(round)
|
||||
for (line in board + board[0].indices.map { col -> board.map { it[col] } }) {
|
||||
if (usedNumbers.containsAll(line)) {
|
||||
val unmarkedNumbers = board.flatten().toMutableSet().also { it.removeAll(usedNumbers) }
|
||||
return round to unmarkedNumbers.sum() * usedNumbers.last()
|
||||
}
|
||||
}
|
||||
}
|
||||
error("No wins")
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,50 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
|
||||
@Day
|
||||
class Day05 : BaseDay() {
|
||||
|
||||
data class Point(val x: Int, val y: Int)
|
||||
|
||||
private val re = "(\\d+),(\\d+) -> (\\d+),(\\d+)".toRegex()
|
||||
|
||||
private fun path(start: Point, end: Point): Sequence<Point> {
|
||||
val dx = end.x.compareTo(start.x)
|
||||
val dy = end.y.compareTo(start.y)
|
||||
return generateSequence(start) {
|
||||
if (it == end) null
|
||||
else Point(it.x + dx, it.y + dy)
|
||||
}
|
||||
}
|
||||
|
||||
override fun part1(): Int {
|
||||
val visited = HashMap<Point, Int>()
|
||||
input.lines.value
|
||||
.map {
|
||||
re.find(it)!!.destructured.let { (x1, y1, x2, y2) ->
|
||||
Point(x1.toInt(), y1.toInt()) to Point(x2.toInt(), y2.toInt())
|
||||
}
|
||||
}
|
||||
.filter { (start, end) -> start.x == end.x || start.y == end.y }
|
||||
.flatMap { (start, end) -> path(start, end) }
|
||||
.forEach { visited.compute(it) { _, value -> (value ?: 0) + 1 } }
|
||||
|
||||
return visited.values.count { it >= 2 }
|
||||
}
|
||||
|
||||
override fun part2(): Int {
|
||||
val visited = HashMap<Point, Int>()
|
||||
input.lines.value
|
||||
.map {
|
||||
re.find(it)!!.destructured.let { (x1, y1, x2, y2) ->
|
||||
Point(x1.toInt(), y1.toInt()) to Point(x2.toInt(), y2.toInt())
|
||||
}
|
||||
}
|
||||
.flatMap { (start, end) -> path(start, end) }
|
||||
.forEach { visited.compute(it) { _, value -> (value ?: 0) + 1 } }
|
||||
|
||||
return visited.values.count { it >= 2 }
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,27 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
|
||||
@Day
|
||||
class Day06 : BaseDay() {
|
||||
override fun part1() = run(80)
|
||||
override fun part2() = run(256)
|
||||
|
||||
private fun run(days: Int): Long {
|
||||
var fish = LongArray(9)
|
||||
input.csv.ints.forEach { fish[it] = fish[it] + 1 }
|
||||
|
||||
var newFish: LongArray
|
||||
for (day in 1..days) {
|
||||
newFish = LongArray(9)
|
||||
for (timer in 8 downTo 1) {
|
||||
newFish[timer - 1] = fish[timer]
|
||||
}
|
||||
newFish[8] = fish[0]
|
||||
newFish[6] = fish[0] + newFish[6]
|
||||
fish = newFish
|
||||
}
|
||||
return fish.sum()
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,28 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
import kotlin.math.abs
|
||||
|
||||
@Day
|
||||
class Day07 : BaseDay() {
|
||||
|
||||
override fun part1(): Any {
|
||||
val ints = input.csv.ints
|
||||
return (ints.minOrNull()!!..ints.maxOrNull()!!).minOf { target -> ints.sumOf { abs(it - target) } }
|
||||
}
|
||||
|
||||
private fun calc(position: Int, target: Int): Int {
|
||||
val diff = abs(position - target)
|
||||
var sum = 0
|
||||
for (i in 1..diff) {
|
||||
sum += diff - i + 1
|
||||
}
|
||||
return sum
|
||||
}
|
||||
|
||||
override fun part2(): Any {
|
||||
val ints = input.csv.ints
|
||||
return (ints.minOrNull()!!..ints.maxOrNull()!!).minOf { target -> ints.sumOf { calc(it, target) } }
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,49 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
|
||||
@Day
|
||||
class Day08 : BaseDay() {
|
||||
|
||||
override fun part1() = input.lines.value
|
||||
.map { it.split(" | ")[1].split(" ") }
|
||||
.sumOf { it.count { it.length in setOf(2, 3, 4, 7) } }
|
||||
|
||||
override fun part2() = input.lines.value
|
||||
.map { it.split(" | ").map { it.split(" ") } }
|
||||
.sumOf { (pattern, digits) ->
|
||||
val patterns = decodePatterns(pattern)
|
||||
digits.map { patterns[it.sortChars()] }.joinToString("").toInt()
|
||||
}
|
||||
|
||||
private fun decodePatterns(patterns: List<String>): Map<String, Int> {
|
||||
val result = Array(10) { "" }
|
||||
|
||||
result[1] = patterns.single { it.length == 2 }
|
||||
result[7] = patterns.single { it.length == 3 }
|
||||
result[4] = patterns.single { it.length == 4 }
|
||||
result[8] = patterns.single { it.length == 7 }
|
||||
|
||||
val frequency = patterns.flatMap { it.toCharArray().toList() }.groupBy { it }.mapValues { it.value.size }
|
||||
val a = (result.letters(7) - result.letters(1)).first()
|
||||
val b = frequency.findKey { it.value == 6 }
|
||||
val c = frequency.findKey { it.value == 8 && it.key != a }
|
||||
val d = frequency.findKey { it.value == 7 && it.key in result.letters(4) }
|
||||
val e = frequency.findKey { it.value == 4 }
|
||||
val f = frequency.findKey { it.value == 9 }
|
||||
|
||||
result[0] = patterns.find { it.length == 6 && d !in it }!!
|
||||
result[2] = patterns.find { it.length == 5 && b !in it && f !in it }!!
|
||||
result[3] = patterns.find { it.length == 5 && b !in it && e !in it }!!
|
||||
result[5] = patterns.find { it.length == 5 && c !in it && e !in it }!!
|
||||
result[6] = patterns.find { it.length == 6 && c !in it }!!
|
||||
result[9] = patterns.find { it.length == 6 && e !in it }!!
|
||||
|
||||
return result.mapIndexed { index, value -> value.sortChars() to index }.toMap()
|
||||
}
|
||||
|
||||
private fun Array<String>.letters(number: Int) = this[number].toCharArray().toSet()
|
||||
private fun <K, V> Map<K, V>.findKey(predicate: (Map.Entry<K, V>) -> Boolean) = entries.find(predicate)!!.key
|
||||
private fun String.sortChars() = toCharArray().sorted().joinToString("")
|
||||
}
|
||||
@@ -0,0 +1,36 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
|
||||
private data class Point(val x: Int, val y: Int)
|
||||
private fun Point.adjacents() = listOf(copy(y = y - 1), copy(x = x + 1), copy(y = y + 1), copy(x = x - 1))
|
||||
|
||||
@Day
|
||||
class Day09 : BaseDay() {
|
||||
|
||||
private val map by lazy {
|
||||
input.lines.value.flatMapIndexed { y, line ->
|
||||
line.mapIndexed { x, value -> Point(x, y) to value.digitToInt() }
|
||||
}.filterNot { it.second == 9 }.toMap()
|
||||
}
|
||||
|
||||
private val lows by lazy {
|
||||
map.keys.filter { point -> point.adjacents().mapNotNull { map[it] }.all { it > map[point]!! } }
|
||||
}
|
||||
|
||||
override fun part1() = lows.sumOf { map[it]!! + 1 }
|
||||
|
||||
override fun part2() = lows.map { low ->
|
||||
val visited = HashSet<Point>().apply { add(low) }
|
||||
generateSequence(hashSetOf(low)) {
|
||||
it.asSequence()
|
||||
.flatMap { it.adjacents() }
|
||||
.filter { it in map }
|
||||
.filterNot { it in visited }
|
||||
.toHashSet()
|
||||
.also { visited.addAll(it) }
|
||||
.ifEmpty { null }
|
||||
}.flatten().count()
|
||||
}.sorted().takeLast(3).fold(1) { a, b -> a * b }
|
||||
}
|
||||
@@ -0,0 +1,56 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
|
||||
@Day
|
||||
class Day10 : BaseDay() {
|
||||
private val chunks = mapOf(
|
||||
')' to '(',
|
||||
']' to '[',
|
||||
'>' to '<',
|
||||
'}' to '{',
|
||||
)
|
||||
|
||||
override fun part1(): Any {
|
||||
val points = mapOf(
|
||||
')' to 3,
|
||||
']' to 57,
|
||||
'}' to 1197,
|
||||
'>' to 25137,
|
||||
)
|
||||
return input.lines.value.sumOf { line ->
|
||||
val stack = mutableListOf<Char>()
|
||||
for (char in line) {
|
||||
if (char in chunks) {
|
||||
if (stack.last() == chunks[char]!!) stack.removeLast()
|
||||
else return@sumOf points[char]!!
|
||||
} else {
|
||||
stack.add(char)
|
||||
}
|
||||
}
|
||||
0
|
||||
}
|
||||
}
|
||||
|
||||
override fun part2(): Any {
|
||||
val points = mapOf(
|
||||
'(' to 1,
|
||||
'[' to 2,
|
||||
'{' to 3,
|
||||
'<' to 4,
|
||||
)
|
||||
return input.lines.value.mapNotNull { line ->
|
||||
val stack = mutableListOf<Char>()
|
||||
for (char in line) {
|
||||
if (char in chunks) {
|
||||
if (stack.last() == chunks[char]!!) stack.removeLast()
|
||||
else return@mapNotNull null
|
||||
} else {
|
||||
stack.add(char)
|
||||
}
|
||||
}
|
||||
stack.foldRight(0L) { char, score -> score * 5 + points[char]!! }
|
||||
}.sorted().let { it[it.size / 2] }
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,63 @@
|
||||
package be.vandewalleh.aoc.days
|
||||
|
||||
import be.vandewalleh.aoc.utils.BaseDay
|
||||
import be.vandewalleh.aoc.utils.input.Day
|
||||
|
||||
@Day
|
||||
class Day11 : BaseDay() {
|
||||
|
||||
private data class Point(val x: Int, val y: Int) {
|
||||
fun adjacents() = listOf(
|
||||
copy(y = y - 1),
|
||||
copy(x = x + 1),
|
||||
copy(y = y + 1),
|
||||
copy(x = x - 1),
|
||||
copy(y = y - 1, x = x - 1),
|
||||
copy(x = x + 1, y = y + 1),
|
||||
copy(y = y + 1, x = x - 1),
|
||||
copy(x = x + 1, y = y - 1),
|
||||
)
|
||||
}
|
||||
|
||||
private val map by lazy {
|
||||
input.lines.value.flatMapIndexed { y, line ->
|
||||
line.mapIndexed { x, value -> Point(x, y) to value.digitToInt() }
|
||||
}.toMap()
|
||||
}
|
||||
|
||||
override fun part1(): Int {
|
||||
val map = map.toMap(HashMap())
|
||||
var count = 0
|
||||
repeat(100) { count += step(map) }
|
||||
return count
|
||||
}
|
||||
|
||||
private fun step(map: HashMap<Point, Int>): Int {
|
||||
map.keys.forEach { map[it] = map[it]!! + 1 }
|
||||
val flashed = hashSetOf<Point>()
|
||||
while (true) {
|
||||
val count = map.entries.asSequence()
|
||||
.filter { it.value > 9 }
|
||||
.filter { it.key !in flashed }
|
||||
.onEach { flashed += it.key }
|
||||
.flatMap { it.key.adjacents() }
|
||||
.filter { it in map }
|
||||
.onEach { map[it] = map[it]!! + 1 }
|
||||
.count()
|
||||
|
||||
if (count == 0) break
|
||||
}
|
||||
|
||||
map.entries.filter { it.value > 9 }
|
||||
.map { it.key }
|
||||
.forEach { map[it] = 0 }
|
||||
|
||||
return flashed.size
|
||||
}
|
||||
|
||||
override fun part2(): Int {
|
||||
val map = map.toMap(HashMap())
|
||||
repeat(10000) { if (step(map) == map.size) return it + 1 }
|
||||
return -1
|
||||
}
|
||||
}
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user