結果

問題 No.2234 palindromer
ユーザー hiromi_ayasehiromi_ayase
提出日時 2023-03-03 22:24:49
言語 Java21
(openjdk 21)
結果
AC  
実行時間 82 ms / 2,000 ms
コード長 3,035 bytes
コンパイル時間 4,483 ms
コンパイル使用メモリ 82,068 KB
実行使用メモリ 54,476 KB
最終ジャッジ日時 2023-10-18 02:35:18
合計ジャッジ時間 5,883 ms
ジャッジサーバーID
(参考情報)
judge15 / judge13
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 78 ms
54,340 KB
testcase_01 AC 80 ms
54,476 KB
testcase_02 AC 81 ms
54,344 KB
testcase_03 AC 80 ms
54,336 KB
testcase_04 AC 80 ms
54,348 KB
testcase_05 AC 82 ms
54,332 KB
testcase_06 AC 79 ms
54,336 KB
testcase_07 AC 81 ms
54,332 KB
testcase_08 AC 80 ms
53,308 KB
testcase_09 AC 79 ms
54,336 KB
testcase_10 AC 78 ms
54,336 KB
testcase_11 AC 79 ms
54,352 KB
testcase_12 AC 78 ms
54,340 KB
testcase_13 AC 78 ms
54,340 KB
testcase_14 AC 78 ms
54,348 KB
testcase_15 AC 78 ms
54,472 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

import java.util.*;

@SuppressWarnings("unused")
public class Main {

  private static void solve() {
    char[] a = ns();

    int n = a.length;
    char[] ia = Arrays.copyOf(a, n);
    for (int i = 0, j = n - 1; i < j; i ++, j --) {
      var tmp = ia[i];
      ia[i] = ia[j];
      ia[j] = tmp;
    }

    outer: for (int i = 0; i < a.length; i ++) {
      char[] buf = new char[1000];
      for (int j = 0; j < a.length; j ++) {
        buf[j] = a[j];
      }

      for (int j = 0; j < a.length; j ++) {
        if (buf[i + j] != 0 && buf[i + j] != ia[j]) continue outer;
        buf[i + j] = ia[j];
      }

      System.out.println(Arrays.copyOf(buf, i + n));
      break;
    }
    
  }

  public static void main(String[] args) {
    new Thread(null, new Runnable() {
      @Override
      public void run() {
        long start = System.currentTimeMillis();
        String debug = args.length > 0 ? args[0] : null;
        if (debug != null) {
          try {
            is = java.nio.file.Files.newInputStream(java.nio.file.Paths.get(debug));
          } catch (Exception e) {
            throw new RuntimeException(e);
          }
        }
        reader = new java.io.BufferedReader(new java.io.InputStreamReader(is), 32768);
        solve();
        out.flush();
        tr((System.currentTimeMillis() - start) + "ms");
      }
    }, "", 64000000).start();
  }

  private static java.io.InputStream is = System.in;
  private static java.io.PrintWriter out = new java.io.PrintWriter(System.out);
  private static java.util.StringTokenizer tokenizer = null;
  private static java.io.BufferedReader reader;

  public static String next() {
    while (tokenizer == null || !tokenizer.hasMoreTokens()) {
      try {
        tokenizer = new java.util.StringTokenizer(reader.readLine());
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
    }
    return tokenizer.nextToken();
  }

  private static double nd() {
    return Double.parseDouble(next());
  }

  private static long nl() {
    return Long.parseLong(next());
  }

  private static int[] na(int n) {
    int[] a = new int[n];
    for (int i = 0; i < n; i++)
      a[i] = ni();
    return a;
  }

  private static char[] ns() {
    return next().toCharArray();
  }

  private static long[] nal(int n) {
    long[] a = new long[n];
    for (int i = 0; i < n; i++)
      a[i] = nl();
    return a;
  }

  private static int[][] ntable(int n, int m) {
    int[][] table = new int[n][m];
    for (int i = 0; i < n; i++) {
      for (int j = 0; j < m; j++) {
        table[i][j] = ni();
      }
    }
    return table;
  }

  private static int[][] nlist(int n, int m) {
    int[][] table = new int[m][n];
    for (int i = 0; i < n; i++) {
      for (int j = 0; j < m; j++) {
        table[j][i] = ni();
      }
    }
    return table;
  }

  private static int ni() {
    return Integer.parseInt(next());
  }

  private static void tr(Object... o) {
    if (is != System.in)
      System.out.println(java.util.Arrays.deepToString(o));
  }
}
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