結果

問題 No.951 【本日限定】1枚頼むともう1枚無料!
ユーザー hiromi_ayasehiromi_ayase
提出日時 2019-12-18 18:54:10
言語 Java21
(openjdk 21)
結果
AC  
実行時間 395 ms / 2,000 ms
コード長 3,288 bytes
コンパイル時間 2,722 ms
コンパイル使用メモリ 91,028 KB
実行使用メモリ 58,396 KB
最終ジャッジ日時 2023-09-21 04:08:59
合計ジャッジ時間 16,615 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 75 ms
51,036 KB
testcase_01 AC 76 ms
51,024 KB
testcase_02 AC 76 ms
51,296 KB
testcase_03 AC 77 ms
50,968 KB
testcase_04 AC 76 ms
51,028 KB
testcase_05 AC 76 ms
50,828 KB
testcase_06 AC 78 ms
50,860 KB
testcase_07 AC 76 ms
51,204 KB
testcase_08 AC 76 ms
51,004 KB
testcase_09 AC 114 ms
53,556 KB
testcase_10 AC 105 ms
53,440 KB
testcase_11 AC 113 ms
53,212 KB
testcase_12 AC 153 ms
53,540 KB
testcase_13 AC 268 ms
53,584 KB
testcase_14 AC 134 ms
53,376 KB
testcase_15 AC 134 ms
53,576 KB
testcase_16 AC 149 ms
53,308 KB
testcase_17 AC 191 ms
53,552 KB
testcase_18 AC 78 ms
50,896 KB
testcase_19 AC 76 ms
51,208 KB
testcase_20 AC 77 ms
51,388 KB
testcase_21 AC 104 ms
53,592 KB
testcase_22 AC 102 ms
53,572 KB
testcase_23 AC 102 ms
53,456 KB
testcase_24 AC 395 ms
58,396 KB
testcase_25 AC 318 ms
55,752 KB
testcase_26 AC 315 ms
55,416 KB
testcase_27 AC 316 ms
55,696 KB
testcase_28 AC 304 ms
55,656 KB
testcase_29 AC 304 ms
55,572 KB
testcase_30 AC 77 ms
50,908 KB
testcase_31 AC 79 ms
50,916 KB
testcase_32 AC 101 ms
53,564 KB
testcase_33 AC 103 ms
53,644 KB
testcase_34 AC 105 ms
53,584 KB
testcase_35 AC 350 ms
57,384 KB
testcase_36 AC 364 ms
57,604 KB
testcase_37 AC 355 ms
57,476 KB
testcase_38 AC 356 ms
57,608 KB
testcase_39 AC 359 ms
57,720 KB
testcase_40 AC 315 ms
53,452 KB
testcase_41 AC 312 ms
55,576 KB
testcase_42 AC 310 ms
55,400 KB
testcase_43 AC 310 ms
55,388 KB
testcase_44 AC 312 ms
56,080 KB
testcase_45 AC 311 ms
56,020 KB
testcase_46 AC 303 ms
55,376 KB
testcase_47 AC 304 ms
55,652 KB
testcase_48 AC 305 ms
56,000 KB
testcase_49 AC 299 ms
55,596 KB
testcase_50 AC 306 ms
55,316 KB
testcase_51 AC 301 ms
55,836 KB
testcase_52 AC 335 ms
58,192 KB
testcase_53 AC 372 ms
58,248 KB
testcase_54 AC 276 ms
55,900 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.Arrays;

public class Main {
  private static void solve() {
    int n = ni();
    int k = ni();
    int[][] p = ntable(n, 2);
    Arrays.sort(p, (o1, o2) -> o2[0] - o1[0]);

    int[][][] dp = new int[2][k + 1][2];

    for (int[][] v : dp)
      for (int[] u : v)
        Arrays.fill(u, Integer.MIN_VALUE / 2);
    dp[0][k][0] = 0;

    for (int i = 0; i < n; i++) {
      int from = i % 2;
      int to = from ^ 1;

      int x = p[i][0];
      int y = p[i][1];
      for (int j = 0; j <= k; j++) {
        dp[to][j][0] = Math.max(dp[from][j][0], dp[from][j][1] + y);
        if (j + x <= k)
          dp[to][j][1] = Math.max(dp[from][j][1], dp[from][j + x][0] + y);
        else {
          dp[to][j][1] = dp[from][j][1];
        }
      }
    }

    int ret = 0;
    for (int s = 0; s <= k; s++) {
      ret = Math.max(ret, dp[n % 2][s][0]);
      ret = Math.max(ret, dp[n % 2][s][1]);
    }
    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