結果
問題 | No.1858 Gorgeous Knapsack |
ユーザー | tenten |
提出日時 | 2023-03-28 09:48:46 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 952 ms / 2,000 ms |
コード長 | 2,745 bytes |
コンパイル時間 | 2,610 ms |
コンパイル使用メモリ | 85,340 KB |
実行使用メモリ | 240,208 KB |
最終ジャッジ日時 | 2024-09-20 01:04:03 |
合計ジャッジ時間 | 13,475 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 47 ms
36,792 KB |
testcase_01 | AC | 47 ms
36,956 KB |
testcase_02 | AC | 47 ms
37,268 KB |
testcase_03 | AC | 51 ms
37,744 KB |
testcase_04 | AC | 243 ms
77,008 KB |
testcase_05 | AC | 112 ms
50,732 KB |
testcase_06 | AC | 288 ms
99,244 KB |
testcase_07 | AC | 224 ms
74,060 KB |
testcase_08 | AC | 386 ms
118,776 KB |
testcase_09 | AC | 684 ms
172,508 KB |
testcase_10 | AC | 341 ms
76,444 KB |
testcase_11 | AC | 327 ms
96,680 KB |
testcase_12 | AC | 480 ms
132,220 KB |
testcase_13 | AC | 172 ms
46,356 KB |
testcase_14 | AC | 51 ms
36,928 KB |
testcase_15 | AC | 50 ms
37,164 KB |
testcase_16 | AC | 49 ms
36,748 KB |
testcase_17 | AC | 49 ms
37,008 KB |
testcase_18 | AC | 50 ms
37,172 KB |
testcase_19 | AC | 48 ms
37,152 KB |
testcase_20 | AC | 48 ms
37,172 KB |
testcase_21 | AC | 50 ms
37,016 KB |
testcase_22 | AC | 48 ms
37,212 KB |
testcase_23 | AC | 48 ms
37,228 KB |
testcase_24 | AC | 137 ms
55,020 KB |
testcase_25 | AC | 433 ms
122,620 KB |
testcase_26 | AC | 366 ms
118,812 KB |
testcase_27 | AC | 357 ms
119,092 KB |
testcase_28 | AC | 294 ms
97,796 KB |
testcase_29 | AC | 119 ms
39,484 KB |
testcase_30 | AC | 121 ms
40,160 KB |
testcase_31 | AC | 120 ms
40,024 KB |
testcase_32 | AC | 117 ms
39,608 KB |
testcase_33 | AC | 132 ms
41,140 KB |
testcase_34 | AC | 952 ms
240,208 KB |
testcase_35 | AC | 337 ms
236,680 KB |
testcase_36 | AC | 928 ms
239,728 KB |
testcase_37 | AC | 46 ms
37,132 KB |
testcase_38 | AC | 115 ms
40,340 KB |
testcase_39 | AC | 49 ms
37,008 KB |
testcase_40 | AC | 330 ms
236,768 KB |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { static Juel[] juels; static long[][] dp; public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int m = sc.nextInt(); juels = new Juel[n]; for (int i = 0; i < n; i++) { juels[i] = new Juel(sc.nextInt(), sc.nextInt()); } Arrays.sort(juels); dp = new long[n][m]; for (long[] arr : dp) { Arrays.fill(arr, -1); } long ans = 0; for (int i = 0; i < n; i++) { if (juels[i].weight <= m) { ans = Math.max(ans, (juels[i].value + dfw(i - 1, m - juels[i].weight)) * juels[i].value); } } System.out.println(ans); } static long dfw(int idx, int v) { if (v < 0) { return Long.MIN_VALUE; } if (idx < 0) { return 0; } if (dp[idx][v] < 0) { dp[idx][v] = Math.max(dfw(idx - 1, v), dfw(idx - 1, v - juels[idx].weight) + juels[idx].value); } return dp[idx][v]; } static class Juel implements Comparable<Juel> { int value; int weight; public Juel(int value, int weight) { this.value = value; this.weight = weight; } public int compareTo(Juel another) { return another.value - value; } } } class Utilities { static String arrayToLineString(Object[] arr) { return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n")); } static String arrayToLineString(int[] arr) { return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new)); } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); StringBuilder sb = new StringBuilder(); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public int[] nextIntArray() throws Exception { return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); } public String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }