結果

問題 No.1082 XORのXOR
ユーザー mikitmikit
提出日時 2020-06-19 23:29:13
言語 Java21
(openjdk 21)
結果
AC  
実行時間 90 ms / 2,000 ms
コード長 4,319 bytes
コンパイル時間 4,099 ms
コンパイル使用メモリ 78,104 KB
実行使用メモリ 53,708 KB
最終ジャッジ日時 2023-09-16 15:43:38
合計ジャッジ時間 7,936 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge14
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 60 ms
50,920 KB
testcase_01 AC 61 ms
50,920 KB
testcase_02 AC 62 ms
48,852 KB
testcase_03 AC 89 ms
51,788 KB
testcase_04 AC 89 ms
51,724 KB
testcase_05 AC 89 ms
51,752 KB
testcase_06 AC 88 ms
52,104 KB
testcase_07 AC 90 ms
51,124 KB
testcase_08 AC 88 ms
51,920 KB
testcase_09 AC 89 ms
53,072 KB
testcase_10 AC 89 ms
52,032 KB
testcase_11 AC 89 ms
51,948 KB
testcase_12 AC 89 ms
51,720 KB
testcase_13 AC 90 ms
53,052 KB
testcase_14 AC 90 ms
51,784 KB
testcase_15 AC 90 ms
51,860 KB
testcase_16 AC 90 ms
51,868 KB
testcase_17 AC 89 ms
51,828 KB
testcase_18 AC 90 ms
53,156 KB
testcase_19 AC 88 ms
51,848 KB
testcase_20 AC 90 ms
53,708 KB
testcase_21 AC 89 ms
51,840 KB
testcase_22 AC 90 ms
52,104 KB
testcase_23 AC 89 ms
51,720 KB
testcase_24 AC 89 ms
51,716 KB
testcase_25 AC 89 ms
52,016 KB
testcase_26 AC 87 ms
53,156 KB
testcase_27 AC 88 ms
51,664 KB
testcase_28 AC 60 ms
50,920 KB
testcase_29 AC 61 ms
50,860 KB
testcase_30 AC 60 ms
50,724 KB
testcase_31 AC 61 ms
50,696 KB
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ソースコード

diff # 

import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.stream.IntStream;
import java.util.stream.LongStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.BufferedOutputStream;
import java.io.UncheckedIOException;
import java.nio.charset.Charset;
import java.util.StringTokenizer;
import java.io.Writer;
import java.io.OutputStreamWriter;
import java.io.BufferedReader;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 *
 * @author mikit
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        LightScanner in = new LightScanner(inputStream);
        LightWriter out = new LightWriter(outputStream);
        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }

    static class Task {
        public void solve(int testNumber, LightScanner in, LightWriter out) {
            int n = in.ints();
            long[] a = in.longs(n);
            long ans = 0;
            for (int i = 0; i < n; i++) {
                for (int j = 0; j < i; j++) {
                    ans = Math.max(ans, a[i] ^ a[j]);
                }
            }
            out.ans(ans).ln();
        }

    }

    static class LightWriter implements AutoCloseable {
        private final Writer out;
        private boolean autoflush = false;
        private boolean breaked = true;

        public LightWriter(Writer out) {
            this.out = out;
        }

        public LightWriter(OutputStream out) {
            this(new OutputStreamWriter(new BufferedOutputStream(out), Charset.defaultCharset()));
        }

        public LightWriter print(char c) {
            try {
                out.write(c);
                breaked = false;
            } catch (IOException ex) {
                throw new UncheckedIOException(ex);
            }
            return this;
        }

        public LightWriter print(String s) {
            try {
                out.write(s, 0, s.length());
                breaked = false;
            } catch (IOException ex) {
                throw new UncheckedIOException(ex);
            }
            return this;
        }

        public LightWriter ans(String s) {
            if (!breaked) {
                print(' ');
            }
            return print(s);
        }

        public LightWriter ans(long l) {
            return ans(Long.toString(l));
        }

        public LightWriter ln() {
            print(System.lineSeparator());
            breaked = true;
            if (autoflush) {
                try {
                    out.flush();
                } catch (IOException ex) {
                    throw new UncheckedIOException(ex);
                }
            }
            return this;
        }

        public void close() {
            try {
                out.close();
            } catch (IOException ex) {
                throw new UncheckedIOException(ex);
            }
        }

    }

    static class LightScanner implements AutoCloseable {
        private BufferedReader reader = null;
        private StringTokenizer tokenizer = null;

        public LightScanner(InputStream in) {
            reader = new BufferedReader(new InputStreamReader(in));
        }

        public String string() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new UncheckedIOException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int ints() {
            return Integer.parseInt(string());
        }

        public long longs() {
            return Long.parseLong(string());
        }

        public long[] longs(int length) {
            return IntStream.range(0, length).mapToLong(x -> longs()).toArray();
        }

        public void close() {
            try {
                this.reader.close();
            } catch (IOException ex) {
                throw new UncheckedIOException(ex);
            }
        }

    }
}
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