結果
問題 | No.1858 Gorgeous Knapsack |
ユーザー | tenten |
提出日時 | 2023-12-07 09:16:00 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,725 bytes |
コンパイル時間 | 6,206 ms |
コンパイル使用メモリ | 91,412 KB |
実行使用メモリ | 185,468 KB |
最終ジャッジ日時 | 2024-09-27 02:00:39 |
合計ジャッジ時間 | 15,106 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
(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 | 52 ms
50,264 KB |
testcase_01 | AC | 52 ms
50,372 KB |
testcase_02 | AC | 52 ms
50,484 KB |
testcase_03 | AC | 53 ms
50,172 KB |
testcase_04 | AC | 207 ms
76,608 KB |
testcase_05 | AC | 117 ms
57,472 KB |
testcase_06 | AC | 239 ms
76,792 KB |
testcase_07 | AC | 214 ms
65,048 KB |
testcase_08 | AC | 318 ms
84,640 KB |
testcase_09 | AC | 584 ms
129,828 KB |
testcase_10 | AC | 240 ms
64,912 KB |
testcase_11 | AC | 320 ms
83,420 KB |
testcase_12 | AC | 481 ms
113,504 KB |
testcase_13 | AC | 167 ms
60,324 KB |
testcase_14 | AC | 52 ms
50,268 KB |
testcase_15 | AC | 54 ms
50,284 KB |
testcase_16 | AC | 54 ms
50,012 KB |
testcase_17 | AC | 54 ms
50,676 KB |
testcase_18 | AC | 55 ms
50,408 KB |
testcase_19 | AC | 51 ms
50,132 KB |
testcase_20 | AC | 51 ms
50,320 KB |
testcase_21 | AC | 50 ms
50,052 KB |
testcase_22 | AC | 51 ms
50,388 KB |
testcase_23 | AC | 50 ms
50,164 KB |
testcase_24 | AC | 132 ms
61,564 KB |
testcase_25 | AC | 357 ms
111,388 KB |
testcase_26 | AC | 293 ms
84,196 KB |
testcase_27 | AC | 282 ms
84,080 KB |
testcase_28 | AC | 270 ms
76,236 KB |
testcase_29 | AC | 125 ms
52,764 KB |
testcase_30 | AC | 125 ms
52,628 KB |
testcase_31 | AC | 110 ms
52,440 KB |
testcase_32 | AC | 119 ms
52,640 KB |
testcase_33 | AC | 138 ms
53,408 KB |
testcase_34 | WA | - |
testcase_35 | AC | 279 ms
181,712 KB |
testcase_36 | AC | 740 ms
181,368 KB |
testcase_37 | AC | 51 ms
50,432 KB |
testcase_38 | AC | 118 ms
52,268 KB |
testcase_39 | AC | 51 ms
50,136 KB |
testcase_40 | AC | 355 ms
185,468 KB |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { static Jewel[] jewels; static int[][] dp; public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int m = sc.nextInt(); jewels = new Jewel[n]; for (int i = 0; i < n; i++) { jewels[i] = new Jewel(sc.nextInt(), sc.nextInt()); } Arrays.sort(jewels); dp = new int[n][m + 1]; for (int[] arr : dp) { Arrays.fill(arr, -1); } long ans = 0; for (int i = n - 1; i >= 0; i--) { long base = jewels[i].value; ans = Math.max(ans, base * (base + dfw(i - 1, m - jewels[i].weight))); } System.out.println(ans); } static int dfw(int idx, int v) { if (v < 0) { return Integer.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 - jewels[idx].weight) + jewels[idx].value); } return dp[idx][v]; } static class Jewel implements Comparable<Jewel> { int value; int weight; public Jewel(int value, int weight) { this.value = value; this.weight = weight; } public int compareTo(Jewel 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(); } }