結果

問題 No.1597 Matrix Sort
ユーザー hiromi_ayasehiromi_ayase
提出日時 2021-07-10 02:13:20
言語 Java21
(openjdk 21)
結果
AC  
実行時間 920 ms / 1,500 ms
コード長 3,203 bytes
コンパイル時間 3,802 ms
コンパイル使用メモリ 84,216 KB
実行使用メモリ 63,100 KB
最終ジャッジ日時 2023-09-14 13:49:16
合計ジャッジ時間 23,411 ms
ジャッジサーバーID
(参考情報)
judge12 / judge15
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 70 ms
50,976 KB
testcase_01 AC 70 ms
50,836 KB
testcase_02 AC 70 ms
50,800 KB
testcase_03 AC 876 ms
60,760 KB
testcase_04 AC 853 ms
60,732 KB
testcase_05 AC 844 ms
60,792 KB
testcase_06 AC 816 ms
60,272 KB
testcase_07 AC 833 ms
61,404 KB
testcase_08 AC 809 ms
61,068 KB
testcase_09 AC 758 ms
61,408 KB
testcase_10 AC 613 ms
57,524 KB
testcase_11 AC 920 ms
61,348 KB
testcase_12 AC 697 ms
60,112 KB
testcase_13 AC 878 ms
61,468 KB
testcase_14 AC 845 ms
62,036 KB
testcase_15 AC 619 ms
60,620 KB
testcase_16 AC 711 ms
60,760 KB
testcase_17 AC 677 ms
60,204 KB
testcase_18 AC 853 ms
61,240 KB
testcase_19 AC 769 ms
61,624 KB
testcase_20 AC 698 ms
61,200 KB
testcase_21 AC 643 ms
60,408 KB
testcase_22 AC 639 ms
63,100 KB
testcase_23 AC 657 ms
61,300 KB
testcase_24 AC 606 ms
59,008 KB
testcase_25 AC 579 ms
57,748 KB
testcase_26 AC 69 ms
51,348 KB
testcase_27 AC 70 ms
48,752 KB
testcase_28 AC 69 ms
50,848 KB
testcase_29 AC 71 ms
51,164 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 k = nl();
    int p = ni();

    int[] a = na(n);
    int[] b = na(n);
    Arrays.sort(a);
    Arrays.sort(b);

    int ng = -1;
    int ok = Integer.MAX_VALUE / 2;

    while (Math.abs(ok - ng) > 1) {
      int v = (ok + ng) / 2;

      // v未満の数
      long cnt = 0;
      for (int ca : a) {
        cnt += lowerBound(b, v - ca) + (lowerBound(b, p + v - ca) - lowerBound(b, p - ca));
      }
      if (cnt >= k) {
        ok = v;
      } else {
        ng = v;
      }
    }
    System.out.println(ok - 1);
  }


  public static int lowerBound(int[] a, int v)
	{
		int low = -1, high = a.length;
		while(high-low > 1){
			int h = high+low>>>1;
			if(a[h] >= v){
				high = h;
			}else{
				low = h;
			}
		}
		return high;
	}

  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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