結果
問題 |
No.2739 Time is money
|
ユーザー |
![]() |
提出日時 | 2024-04-22 13:16:18 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 1,308 ms / 2,000 ms |
コード長 | 2,520 bytes |
コンパイル時間 | 2,104 ms |
コンパイル使用メモリ | 79,828 KB |
実行使用メモリ | 86,792 KB |
最終ジャッジ日時 | 2024-10-14 12:44:41 |
合計ジャッジ時間 | 22,350 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 18 |
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(); long rate = sc.nextInt(); List<List<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; long c = sc.nextInt() + sc.nextInt() * rate; graph.get(a).add(new Path(b, c)); graph.get(b).add(new Path(a, c)); } PriorityQueue<Path> queue = new PriorityQueue<>(); queue.add(new Path(0, 0)); long[] costs = new long[n]; Arrays.fill(costs, Long.MAX_VALUE); while (queue.size() > 0) { Path p = queue.poll(); if (costs[p.idx] <= p.value) { continue; } costs[p.idx] = p.value; for (Path x : graph.get(p.idx)) { queue.add(new Path(x.idx, x.value + p.value)); } } System.out.println(costs[n - 1] == Long.MAX_VALUE ? -1 : (costs[n - 1] + rate - 1) / rate); } 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(value, another.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(); } } }