結果

問題 No.1583 Building Blocks
ユーザー hiromi_ayasehiromi_ayase
提出日時 2021-07-03 00:38:25
言語 Java21
(openjdk 21)
結果
AC  
実行時間 136 ms / 2,000 ms
コード長 3,171 bytes
コンパイル時間 5,955 ms
コンパイル使用メモリ 81,632 KB
実行使用メモリ 61,532 KB
最終ジャッジ日時 2023-10-12 03:04:55
合計ジャッジ時間 9,323 ms
ジャッジサーバーID
(参考情報)
judge12 / judge14
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 78 ms
49,268 KB
testcase_01 AC 77 ms
50,852 KB
testcase_02 AC 79 ms
51,124 KB
testcase_03 AC 121 ms
54,828 KB
testcase_04 AC 87 ms
51,352 KB
testcase_05 AC 81 ms
51,388 KB
testcase_06 AC 113 ms
54,756 KB
testcase_07 AC 118 ms
55,060 KB
testcase_08 AC 78 ms
50,912 KB
testcase_09 AC 121 ms
57,128 KB
testcase_10 AC 71 ms
51,040 KB
testcase_11 AC 72 ms
51,028 KB
testcase_12 AC 127 ms
55,248 KB
testcase_13 AC 129 ms
57,132 KB
testcase_14 AC 114 ms
54,616 KB
testcase_15 AC 123 ms
52,880 KB
testcase_16 AC 130 ms
57,008 KB
testcase_17 AC 130 ms
57,292 KB
testcase_18 AC 97 ms
51,268 KB
testcase_19 AC 136 ms
61,532 KB
testcase_20 AC 115 ms
52,784 KB
testcase_21 AC 114 ms
52,680 KB
testcase_22 AC 115 ms
54,476 KB
testcase_23 AC 89 ms
51,448 KB
testcase_24 AC 133 ms
57,524 KB
testcase_25 AC 77 ms
50,976 KB
testcase_26 AC 134 ms
57,172 KB
testcase_27 AC 118 ms
52,756 KB
testcase_28 AC 134 ms
57,212 KB
testcase_29 AC 108 ms
52,348 KB
testcase_30 AC 91 ms
51,260 KB
testcase_31 AC 132 ms
57,484 KB
testcase_32 AC 123 ms
54,612 KB
testcase_33 AC 134 ms
61,356 KB
testcase_34 AC 78 ms
50,868 KB
testcase_35 AC 124 ms
54,632 KB
testcase_36 AC 129 ms
56,976 KB
testcase_37 AC 93 ms
51,364 KB
testcase_38 AC 77 ms
51,356 KB
testcase_39 AC 77 ms
50,924 KB
testcase_40 AC 77 ms
51,264 KB
testcase_41 AC 76 ms
51,084 KB
testcase_42 AC 77 ms
50,852 KB
testcase_43 AC 76 ms
48,864 KB
testcase_44 AC 77 ms
50,980 KB
testcase_45 AC 77 ms
51,116 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();
    int[][] p = ntable(n, 2);
    Arrays.sort(p, (o1, o2) -> (o1[0] + o1[1]) - (o2[1] + o2[0]));
    long[][] dp = new long[n + 1][n + 1];
    for (long[] v : dp)
      Arrays.fill(v, Long.MAX_VALUE / 10);
    dp[0][0] = 0;

    for (int i = 1; i <= n; i++) {
      int w = p[i - 1][0];
      int s = p[i - 1][1];

      for (int k = 0; k <= i - 1; k++) {
        dp[i][k] = Math.min(dp[i][k], dp[i - 1][k]);
        if (dp[i - 1][k] <= s) {
          dp[i][k + 1] = Math.min(dp[i][k + 1], dp[i - 1][k] + w);
        }
      }
    }

    int ret = 0;
    for (int i = 0; i <= n; i++) {
      if (dp[n][i] < Long.MAX_VALUE / 100) {
        ret = Math.max(ret, i);
      }
    }

    System.out.println(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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