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 147 ms / 2,000 ms
コード長 3,171 bytes
コンパイル時間 2,685 ms
コンパイル使用メモリ 90,908 KB
実行使用メモリ 50,640 KB
最終ジャッジ日時 2024-09-14 02:50:52
合計ジャッジ時間 9,252 ms
ジャッジサーバーID
(参考情報)
judge4 / judge5
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 80 ms
38,232 KB
testcase_01 AC 80 ms
38,056 KB
testcase_02 AC 84 ms
38,344 KB
testcase_03 AC 123 ms
41,392 KB
testcase_04 AC 96 ms
38,680 KB
testcase_05 AC 88 ms
38,308 KB
testcase_06 AC 124 ms
41,360 KB
testcase_07 AC 127 ms
41,780 KB
testcase_08 AC 88 ms
38,668 KB
testcase_09 AC 139 ms
46,164 KB
testcase_10 AC 88 ms
38,452 KB
testcase_11 AC 83 ms
38,420 KB
testcase_12 AC 135 ms
42,892 KB
testcase_13 AC 138 ms
46,272 KB
testcase_14 AC 118 ms
40,612 KB
testcase_15 AC 129 ms
42,348 KB
testcase_16 AC 137 ms
46,296 KB
testcase_17 AC 137 ms
46,080 KB
testcase_18 AC 102 ms
39,160 KB
testcase_19 AC 147 ms
50,468 KB
testcase_20 AC 120 ms
40,204 KB
testcase_21 AC 122 ms
40,788 KB
testcase_22 AC 123 ms
40,452 KB
testcase_23 AC 97 ms
38,784 KB
testcase_24 AC 141 ms
46,104 KB
testcase_25 AC 83 ms
38,176 KB
testcase_26 AC 142 ms
46,436 KB
testcase_27 AC 121 ms
40,668 KB
testcase_28 AC 144 ms
46,220 KB
testcase_29 AC 111 ms
39,600 KB
testcase_30 AC 96 ms
38,904 KB
testcase_31 AC 138 ms
46,352 KB
testcase_32 AC 130 ms
41,148 KB
testcase_33 AC 145 ms
50,640 KB
testcase_34 AC 86 ms
38,052 KB
testcase_35 AC 128 ms
41,588 KB
testcase_36 AC 142 ms
46,320 KB
testcase_37 AC 100 ms
39,444 KB
testcase_38 AC 82 ms
38,420 KB
testcase_39 AC 82 ms
38,116 KB
testcase_40 AC 82 ms
38,164 KB
testcase_41 AC 80 ms
38,284 KB
testcase_42 AC 81 ms
38,260 KB
testcase_43 AC 81 ms
38,284 KB
testcase_44 AC 82 ms
38,308 KB
testcase_45 AC 81 ms
38,336 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));
  }
}
0