Prepare for other years

2020-12-30 18:01:52 +01:00
parent 522618d106
commit 4a90257257
81 changed files with 277 additions and 253 deletions
@@ -0,0 +1,49 @@
+package be.vandewalleh.aoc;
+
+import be.vandewalleh.aoc.utils.factory.Days;
+import be.vandewalleh.aoc.utils.input.Day;
+import be.vandewalleh.aoc.utils.input.Input;
+import be.vandewalleh.aoc.utils.input.Lines;
+
+@Day(1)
+public class Day01 {
+
+    public static void main(String[] args) {
+        var day = Days.createDay(Day01.class);
+        System.out.println(day.part1());
+        System.out.println(day.part2());
+    }
+
+    private final int[] input;
+
+    public Day01(@Lines Input<int[]> input) {
+        this.input = input.getValue();
+    }
+
+    private int fuel(int mass) {
+        return (mass / 3) - 2;
+    }
+
+    public int part1() {
+        var total = 0;
+        for (var mass : input) {
+            total += fuel(mass);
+        }
+        return total;
+    }
+
+    public int part2() {
+        var total = 0;
+        for (var mass : input) {
+            int fuel = fuel(mass);
+            int subTotal = fuel;
+            while (true) {
+                fuel = fuel(fuel);
+                if (fuel <= 0) break;
+                subTotal += fuel;
+            }
+            total += subTotal;
+        }
+        return total;
+    }
+}