結果
| 問題 |
No.2712 Play more!
|
| ユーザー |
tenten
|
| 提出日時 | 2024-04-01 18:24:18 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,650 bytes |
| コンパイル時間 | 2,539 ms |
| コンパイル使用メモリ | 80,400 KB |
| 実行使用メモリ | 54,864 KB |
| 最終ジャッジ日時 | 2024-09-30 21:56:47 |
| 合計ジャッジ時間 | 6,396 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 32 WA * 1 |
ソースコード
import java.io.*;
import java.util.*;
import java.util.function.*;
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[] values = new int[n];
List<List<Path>> graph = new ArrayList<>();
for (int i = 0; i < n; i++) {
values[i] = sc.nextInt();
graph.add(new ArrayList<>());
}
for (int i = 0; i < m; i++) {
graph.get(sc.nextInt() - 1).add(new Path(sc.nextInt() - 1, sc.nextInt()));
}
PriorityQueue<Path> queue = new PriorityQueue<>();
long[] points = new long[n];
Arrays.fill(points, Long.MIN_VALUE);
queue.add(new Path(0, 0));
while (queue.size() > 0) {
Path p = queue.poll();
if (p.value < Long.MAX_VALUE) {
p.value += values[p.idx];
}
if (points[p.idx] >= p.value) {
continue;
}
if (points[p.idx] > Long.MIN_VALUE) {
p.value = Long.MAX_VALUE;
}
points[p.idx] = p.value;
for (Path x : graph.get(p.idx)) {
queue.add(new Path(x.idx, p.value - (p.value == Long.MAX_VALUE ? 0 : x.value)));
}
}
System.out.println(points[n - 1] == Long.MAX_VALUE ? "inf" : points[n - 1]);
}
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) {
return Long.compare(another.value, value);
}
}
}
class Scanner {
BufferedReader br;
StringTokenizer st = new StringTokenizer("");
StringBuilder sb = new StringBuilder();
public Scanner() {
try {
br = new BufferedReader(new InputStreamReader(System.in));
} catch (Exception e) {
}
}
public int nextInt() {
return Integer.parseInt(next());
}
public long nextLong() {
return Long.parseLong(next());
}
public double nextDouble() {
return Double.parseDouble(next());
}
public String next() {
try {
while (!st.hasMoreTokens()) {
st = new StringTokenizer(br.readLine());
}
} catch (Exception e) {
e.printStackTrace();
} finally {
return st.nextToken();
}
}
}
tenten