[20251124] BOJ / G3 / 비트코인은 신이고 나는 무적이다 / 김민진

Author: zinnnn37

zinnnn37/202511/24 BOJ G3 비트코인은 신이고 나는 무적이다.md

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+```java
+import java.io.*;
+import java.util.StringTokenizer;
+
+public class BJ_G3_비트코인은_신이고_나는_무적이다 {
+
+    private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+    private static StringTokenizer st;
+
+    private static int N, M;
+    private static int[] candlestick;
+    private static boolean[][] dp;
+
+    public static void main(String[] args) throws IOException {
+        init();
+        sol();
+    }
+
+    private static void init() throws IOException {
+        st = new StringTokenizer(br.readLine());
+
+        N = Integer.parseInt(st.nextToken());
+        M = Integer.parseInt(st.nextToken());
+
+        candlestick = new int[N + 1];
+        st = new StringTokenizer(br.readLine());
+        for (int i = 1; i <= N; i++) {
+            candlestick[i] = Math.abs(Integer.parseInt(st.nextToken()));
+        }
+        dp = new boolean[M + 1][1024];
+        dp[0][0] = true;
+    }
+
+    private static void sol() throws IOException {
+        for (int i = 0; i < M; i++) {
+            for (int j = 0; j < 1024; j++) {
+                if (dp[i][j]) {
+                    for (int k = 1; k <= N; k++) {
+                        dp[i + 1][j ^ candlestick[k]] = true;
+                    }
+                }
+            }
+        }
+
+        for (int j = 1023; j >= 0; j--) {
+            if (dp[M][j]) {
+                bw.write(j + "");
+                break;
+            }
+        }
+
+        bw.flush();
+        bw.close();
+        br.close();
+    }
+
+}
+```