UE12

src/UE12_310125_AOC22/year2024_day22.java

@@ -0,0 +1,38 @@
+package UE12_310125_AOC22;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+
+
+public class year2024_day22 {
+    public static List<String> readFile(String s) {
+        List<String> lines;
+        try {
+            lines = Files.readAllLines(Path.of(s));
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+        return lines;
+    }
+
+    public static void main(String[] args) {
+        List<String> lines = readFile("src/UE12_310125_AOC22/day22_input.txt");
+        System.out.println(day22(lines, 2000));
+    }
+
+    public static long day22(List<String> lines, int cycles) {
+        long out = 0;
+        for (String line : lines) {
+            long secret = Integer.parseInt(line);
+            for (int i = 0; i < cycles; i++) {
+                secret ^= (secret << 6) & 0xFFFFFF;
+                secret ^= (secret >> 5) & 0xFFFFFF;
+                secret ^= (secret << 11) & 0xFFFFFF;
+            }
+            out += secret;
+        }
+        return out;
+    }
+}