結果

問題 No.519 アイドルユニット
ユーザー hiromi_ayasehiromi_ayase
提出日時 2017-05-30 15:40:25
言語 Java21
(openjdk 21)
結果
TLE  
実行時間 -
コード長 3,582 bytes
コンパイル時間 2,376 ms
コンパイル使用メモリ 77,620 KB
実行使用メモリ 123,436 KB
最終ジャッジ日時 2023-10-21 18:03:34
合計ジャッジ時間 13,610 ms
ジャッジサーバーID
(参考情報)
judge13 / judge9
このコードへのチャレンジ
(要ログイン)

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 TLE -
testcase_01 TLE -
testcase_02 AC 343 ms
73,784 KB
testcase_03 AC 90 ms
41,320 KB
testcase_04 AC 52 ms
40,172 KB
testcase_05 AC 51 ms
40,188 KB
testcase_06 AC 55 ms
40,136 KB
testcase_07 AC 54 ms
40,172 KB
testcase_08 AC 56 ms
40,180 KB
testcase_09 AC 64 ms
40,320 KB
testcase_10 AC 81 ms
41,444 KB
testcase_11 AC 91 ms
41,296 KB
testcase_12 AC 53 ms
40,216 KB
testcase_13 AC 90 ms
41,540 KB
testcase_14 AC 92 ms
41,320 KB
testcase_15 AC 89 ms
41,280 KB
testcase_16 AC 100 ms
41,528 KB
testcase_17 AC 97 ms
41,828 KB
testcase_18 AC 87 ms
41,308 KB
testcase_19 AC 88 ms
41,312 KB
testcase_20 AC 91 ms
41,528 KB
testcase_21 AC 90 ms
41,436 KB
testcase_22 AC 91 ms
41,524 KB
testcase_23 AC 95 ms
41,480 KB
testcase_24 AC 137 ms
43,716 KB
testcase_25 AC 136 ms
43,844 KB
testcase_26 AC 138 ms
43,712 KB
testcase_27 AC 140 ms
43,716 KB
testcase_28 AC 140 ms
43,716 KB
testcase_29 TLE -
testcase_30 TLE -
testcase_31 TLE -
testcase_32 TLE -
testcase_33 AC 55 ms
53,312 KB
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ソースコード

diff #


import java.io.IOException;
import java.io.InputStream;
import java.util.NoSuchElementException;


public class Main {
  public static void main(String[] args) {
    FastScanner sc = new FastScanner();
    int N = sc.nextInt();

    int[][] f = sc.nextIntTable(N, N);
    int[] dp = new int[1 << N];
    
    for (int state = 0; state < (1 << N); state ++) {
      if (Integer.bitCount(state) % 2 == 0) {
        for (int i = 0; i < N; i ++) {
          if ((state & (1 << i)) == 0) {
            for (int j = i + 1; j < N; j ++) {
              if ((state & (1 << i)) == 0 && (state & (1 << j)) == 0) {
                int next = state | (1 << i) | (1 << j);
                dp[next] = Math.max(dp[next], dp[state] + f[i][j]);
              }
            }
            break;
          }
        }
      }
    }
    System.out.println(dp[(1 << N) - 1]);
  }
}


class FastScanner {
  public static String debug = null;

  private final InputStream in = System.in;
  private int ptr = 0;
  private int buflen = 0;
  private byte[] buffer = new byte[1024];
  private boolean eos = false;

  private boolean hasNextByte() {
    if (ptr < buflen) {
      return true;
    } else {
      ptr = 0;
      try {
        if (debug != null) {
          buflen = debug.length();
          buffer = debug.getBytes();
          debug = "";
          eos = true;
        } else {
          buflen = in.read(buffer);
        }
      } catch (IOException e) {
        e.printStackTrace();
      }
      if (buflen < 0) {
        eos = true;
        return false;
      } else if (buflen == 0) {
        return false;
      }
    }
    return true;
  }

  private int readByte() {
    if (hasNextByte())
      return buffer[ptr++];
    else
      return -1;
  }

  private static boolean isPrintableChar(int c) {
    return 33 <= c && c <= 126;
  }

  private void skipUnprintable() {
    while (hasNextByte() && !isPrintableChar(buffer[ptr]))
      ptr++;
  }

  public boolean isEOS() {
    return this.eos;
  }

  public boolean hasNext() {
    skipUnprintable();
    return hasNextByte();
  }

  public String next() {
    if (!hasNext())
      throw new NoSuchElementException();
    StringBuilder sb = new StringBuilder();
    int b = readByte();
    while (isPrintableChar(b)) {
      sb.appendCodePoint(b);
      b = readByte();
    }
    return sb.toString();
  }

  public long nextLong() {
    if (!hasNext())
      throw new NoSuchElementException();
    long n = 0;
    boolean minus = false;
    int b = readByte();
    if (b == '-') {
      minus = true;
      b = readByte();
    }
    if (b < '0' || '9' < b) {
      throw new NumberFormatException();
    }
    while (true) {
      if ('0' <= b && b <= '9') {
        n *= 10;
        n += b - '0';
      } else if (b == -1 || !isPrintableChar(b)) {
        return minus ? -n : n;
      } else {
        throw new NumberFormatException();
      }
      b = readByte();
    }
  }

  public int nextInt() {
    return (int) nextLong();
  }

  public long[] nextLongList(int n) {
    return nextLongTable(1, n)[0];
  }

  public int[] nextIntList(int n) {
    return nextIntTable(1, n)[0];
  }

  public long[][] nextLongTable(int n, int m) {
    long[][] ret = new long[n][m];
    for (int i = 0; i < n; i++) {
      for (int j = 0; j < m; j++) {
        ret[i][j] = nextLong();
      }
    }
    return ret;
  }

  public int[][] nextIntTable(int n, int m) {
    int[][] ret = new int[n][m];
    for (int i = 0; i < n; i++) {
      for (int j = 0; j < m; j++) {
        ret[i][j] = nextInt();
      }
    }
    return ret;
  }
}
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