結果
| 問題 |
No.848 なかよし旅行
|
| コンテスト | |
| ユーザー |
tenten
|
| 提出日時 | 2023-04-24 15:53:32 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,582 bytes |
| コンパイル時間 | 2,816 ms |
| コンパイル使用メモリ | 95,956 KB |
| 実行使用メモリ | 63,972 KB |
| 最終ジャッジ日時 | 2024-11-08 17:13:02 |
| 合計ジャッジ時間 | 14,133 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 7 WA * 19 |
ソースコード
import java.io.*;
import java.util.*;
import java.util.stream.*;
public class Main {
public static void main(String[] args) throws Exception {
Scanner sc = new Scanner();
int n = sc.nextInt();
int m = sc.nextInt();
int[] bases = new int[]{0, sc.nextInt() - 1, sc.nextInt() - 1};
int t = sc.nextInt();
ArrayList<ArrayList<Path>> graph = new ArrayList<>();
for (int i = 0; i < n; i++) {
graph.add(new ArrayList<>());
}
for (int i = 0; i < m; i++) {
int a = sc.nextInt() - 1;
int b = sc.nextInt() - 1;
int c = sc.nextInt();
graph.get(a).add(new Path(b, c));
graph.get(b).add(new Path(a, c));
}
long[][] costs = new long[3][n];
PriorityQueue<Path> queue = new PriorityQueue<>();
for (int i = 0; i < 3; i++) {
queue.add(new Path(bases[i], 0));
Arrays.fill(costs[i], Long.MAX_VALUE);
while (queue.size() > 0) {
Path p = queue.poll();
if (costs[i][p.idx] <= p.value) {
continue;
}
costs[i][p.idx] = p.value;
for (Path x : graph.get(p.idx)) {
queue.add(new Path(x.idx, x.value + p.value));
}
}
}
long tmp = 0;
for (int i = 0; i < 3; i++) {
tmp += costs[i][bases[(i + 1) % 3]];
}
if (tmp <= t) {
System.out.println(t);
return;
}
long ans = -1;
for (int i = 0; i < n; i++) {
long separate = Math.max(costs[1][i], costs[2][i]);
if (t >= separate * 2 + costs[0][i] * 2) {
ans = Math.max(ans, t - separate * 2);
}
}
System.out.println(ans);
}
static class Path implements Comparable<Path> {
int idx;
long value;
public Path(int idx, long value) {
this.idx = idx;
this.value = value;
}
public int compareTo(Path another) {
if (value == another.value) {
return 0;
} else if (value < another.value) {
return -1;
} else {
return 1;
}
}
}
}
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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