結果

問題 No.1199 お菓子配り-2
ユーザー hiromi_ayasehiromi_ayase
提出日時 2020-08-28 22:09:55
言語 Java21
(openjdk 21)
結果
AC  
実行時間 526 ms / 1,000 ms
コード長 2,873 bytes
コンパイル時間 4,360 ms
コンパイル使用メモリ 89,860 KB
実行使用メモリ 47,948 KB
最終ジャッジ日時 2024-04-26 14:56:40
合計ジャッジ時間 26,063 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 68 ms
38,068 KB
testcase_01 AC 68 ms
38,008 KB
testcase_02 AC 71 ms
38,244 KB
testcase_03 AC 313 ms
46,244 KB
testcase_04 AC 438 ms
47,352 KB
testcase_05 AC 141 ms
41,000 KB
testcase_06 AC 168 ms
43,796 KB
testcase_07 AC 322 ms
45,740 KB
testcase_08 AC 360 ms
46,892 KB
testcase_09 AC 303 ms
46,336 KB
testcase_10 AC 192 ms
44,640 KB
testcase_11 AC 285 ms
45,936 KB
testcase_12 AC 262 ms
45,448 KB
testcase_13 AC 187 ms
44,852 KB
testcase_14 AC 180 ms
44,520 KB
testcase_15 AC 172 ms
43,276 KB
testcase_16 AC 366 ms
47,408 KB
testcase_17 AC 287 ms
45,872 KB
testcase_18 AC 361 ms
46,036 KB
testcase_19 AC 242 ms
44,896 KB
testcase_20 AC 485 ms
47,924 KB
testcase_21 AC 381 ms
47,520 KB
testcase_22 AC 317 ms
46,248 KB
testcase_23 AC 335 ms
45,820 KB
testcase_24 AC 382 ms
46,116 KB
testcase_25 AC 201 ms
44,724 KB
testcase_26 AC 435 ms
47,452 KB
testcase_27 AC 397 ms
47,672 KB
testcase_28 AC 526 ms
47,332 KB
testcase_29 AC 521 ms
47,760 KB
testcase_30 AC 455 ms
47,292 KB
testcase_31 AC 467 ms
46,544 KB
testcase_32 AC 501 ms
47,380 KB
testcase_33 AC 478 ms
47,428 KB
testcase_34 AC 463 ms
47,092 KB
testcase_35 AC 488 ms
47,492 KB
testcase_36 AC 485 ms
47,744 KB
testcase_37 AC 454 ms
47,704 KB
testcase_38 AC 499 ms
47,948 KB
testcase_39 AC 506 ms
47,360 KB
testcase_40 AC 494 ms
47,448 KB
testcase_41 AC 494 ms
47,864 KB
testcase_42 AC 493 ms
47,400 KB
testcase_43 AC 460 ms
46,492 KB
testcase_44 AC 504 ms
47,420 KB
testcase_45 AC 496 ms
47,696 KB
testcase_46 AC 454 ms
46,664 KB
testcase_47 AC 501 ms
47,268 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 m = ni();
    long[] a = new long[n];
    for (int i = 0; i < n; i++) {
      for (int j = 0; j < m; j++) {
        a[i] += nl();
      }
    }

    long[] dp = new long[2];
    dp[1] = Long.MIN_VALUE / 2;

    for (int i = 0; i < n; i++) {
      long x = Math.max(dp[0], dp[1] - a[i]);
      long y = Math.max(dp[1], dp[0] + a[i]);

      dp[0] = x;
      dp[1] = y;
    }

    System.out.println(Math.max(dp[0], dp[1]));

  }

  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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