結果

問題 No.1251 絶対に間違ってはいけない最小化問題
ユーザー hiromi_ayasehiromi_ayase
提出日時 2020-10-09 22:13:47
言語 Java21
(openjdk 21)
結果
AC  
実行時間 830 ms / 2,000 ms
コード長 3,346 bytes
コンパイル時間 4,727 ms
コンパイル使用メモリ 90,700 KB
実行使用メモリ 75,552 KB
最終ジャッジ日時 2024-07-20 12:07:39
合計ジャッジ時間 33,266 ms
ジャッジサーバーID
(参考情報)
judge4 / judge1
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 AC 99 ms
53,268 KB
testcase_01 AC 107 ms
53,588 KB
testcase_02 AC 107 ms
53,440 KB
testcase_03 AC 109 ms
53,400 KB
testcase_04 AC 107 ms
53,184 KB
testcase_05 AC 108 ms
53,272 KB
testcase_06 AC 109 ms
53,216 KB
testcase_07 AC 107 ms
53,588 KB
testcase_08 AC 112 ms
53,236 KB
testcase_09 AC 109 ms
53,356 KB
testcase_10 AC 111 ms
53,500 KB
testcase_11 AC 109 ms
53,464 KB
testcase_12 AC 107 ms
53,136 KB
testcase_13 AC 106 ms
53,348 KB
testcase_14 AC 111 ms
53,456 KB
testcase_15 AC 111 ms
53,508 KB
testcase_16 AC 108 ms
53,408 KB
testcase_17 AC 110 ms
53,480 KB
testcase_18 AC 779 ms
72,000 KB
testcase_19 AC 769 ms
75,552 KB
testcase_20 AC 542 ms
63,136 KB
testcase_21 AC 261 ms
57,920 KB
testcase_22 AC 559 ms
65,780 KB
testcase_23 AC 214 ms
56,748 KB
testcase_24 AC 655 ms
68,948 KB
testcase_25 AC 526 ms
65,648 KB
testcase_26 AC 352 ms
60,176 KB
testcase_27 AC 227 ms
57,520 KB
testcase_28 AC 811 ms
74,624 KB
testcase_29 AC 814 ms
71,832 KB
testcase_30 AC 817 ms
72,476 KB
testcase_31 AC 801 ms
72,676 KB
testcase_32 AC 802 ms
72,748 KB
testcase_33 AC 811 ms
71,720 KB
testcase_34 AC 830 ms
71,896 KB
testcase_35 AC 800 ms
72,336 KB
testcase_36 AC 816 ms
72,504 KB
testcase_37 AC 802 ms
74,220 KB
testcase_38 AC 809 ms
74,492 KB
testcase_39 AC 806 ms
74,316 KB
testcase_40 AC 804 ms
74,416 KB
testcase_41 AC 805 ms
72,140 KB
testcase_42 AC 797 ms
72,064 KB
testcase_43 AC 106 ms
53,460 KB
testcase_44 AC 106 ms
53,208 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() {
    int n = ni();
    long[][] p = new long[n][2];
    long bsum = 0;
    for (int i = 0; i < n; i++) {
      p[i][0] = nl();
    }
    for (int i = 0; i < n; i++) {
      p[i][1] = nl();
      bsum += p[i][1];
    }

    if (n == 1) {
      System.out.println(p[0][0] + " " + f(p, p[0][0]));
      return;
    }
    Arrays.sort(p, (o1, o2) -> Long.compare(o1[0], o2[0]));

    long s = 0;
    int arg = 0;
    for (int i = 0; i < n; i++) {
      s += p[i][1];
      if (s * 2 >= bsum) {
        arg = i;
        break;
      }
    }

    if (arg > 0 && f(p, p[arg][0]) > f(p, p[arg - 1][0])) {
      System.out.println(p[arg - 1][0] + " " + f(p, p[arg - 1][0]));
    } else {
      System.out.println(p[arg][0] + " " + f(p, p[arg][0]));
    }
  }

  private static long f(long[][] p, long x) {
    long ret = 0;
    for (long[] v : p) {
      ret += v[1] * Math.abs(x - v[0]);
    }
    return ret;
  }

  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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