結果

問題 No.54 Happy Hallowe'en
ユーザー tenten
提出日時 2023-08-10 13:11:19
言語 Java
(openjdk 23)
結果
MLE  
実行時間 -
コード長 2,581 bytes
コンパイル時間 5,810 ms
コンパイル使用メモリ 85,220 KB
実行使用メモリ 768,304 KB
最終ジャッジ日時 2024-11-16 19:28:30
合計ジャッジ時間 55,372 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)
ファイルパターン 結果
other AC * 7 TLE * 2 MLE * 10
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 #
プレゼンテーションモードにする

import java.io.*;
import java.util.*;
import java.util.stream.*;
public class Main {
static House[] houses;
static ArrayList<HashMap<Integer, Integer>> dp = new ArrayList<>();
public static void main(String[] args) throws Exception {
Scanner sc = new Scanner();
int n = sc.nextInt();
houses = new House[n];
for (int i = 0; i < n; i++) {
houses[i] = new House(sc.nextInt(), sc.nextInt());
dp.add(new HashMap<>());
}
Arrays.sort(houses);
System.out.println(dfw(n - 1, 0));
}
static int dfw(int idx, int v) {
if (idx < 0) {
return v;
}
if (!dp.get(idx).containsKey(v)) {
if (houses[idx].limit > v) {
dp.get(idx).put(v, Math.max(dfw(idx - 1, v), dfw(idx - 1, v + houses[idx].value)));
} else {
dp.get(idx).put(v, dfw(idx - 1, v));
}
}
return dp.get(idx).get(v);
}
static class House implements Comparable<House> {
int value;
int limit;
public House(int value, int limit) {
this.value = value;
this.limit = limit;
}
public int compareTo(House another) {
return (another.limit + another.value) - (limit + 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();
}
}
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