結果
問題 | No.1449 新プロランド |
ユーザー |
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提出日時 | 2021-04-12 17:59:04 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 221 ms / 2,000 ms |
コード長 | 2,574 bytes |
コンパイル時間 | 2,567 ms |
コンパイル使用メモリ | 79,988 KB |
実行使用メモリ | 44,664 KB |
最終ジャッジ日時 | 2024-12-24 02:07:51 |
合計ジャッジ時間 | 7,309 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 26 |
ソースコード
import java.io.*;import java.util.*;public class Main {public static void main(String[] args) throws Exception {Scanner sc = new Scanner();int n = sc.nextInt();int m = sc.nextInt();ArrayList<HashMap<Integer, Integer>> graph = new ArrayList<>();for (int i = 0; i < n; i++) {graph.add(new HashMap<>());}for (int i = 0; i < m; i++) {int a = sc.nextInt() - 1;int b = sc.nextInt() - 1;int c = sc.nextInt();graph.get(a).put(b, c);graph.get(b).put(a, c);}int[] times = new int[n];for (int i = 0; i < n; i++) {times[i] = sc.nextInt();}PriorityQueue<Path> queue = new PriorityQueue<>();int[][] costs = new int[1002][n];for (int[] arr : costs) {Arrays.fill(arr, Integer.MAX_VALUE);}queue.add(new Path(0, 0, 0));while (queue.size() > 0) {Path p = queue.poll();if (costs[p.time][p.idx] <= p.value) {continue;}costs[p.time][p.idx] = p.value;p.time = Math.min(1001, p.time + times[p.idx]);p.value += times[p.idx];for (int x : graph.get(p.idx).keySet()) {queue.add(new Path(x, p.value + graph.get(p.idx).get(x) / p.time, p.time));}}int min = Integer.MAX_VALUE;for (int i = 0; i < 1002; i++) {min = Math.min(min, costs[i][n - 1]);}System.out.println(min);}static class Path implements Comparable<Path> {int idx;int value;int time;public Path(int idx, int value, int time) {this.idx = idx;this.value = value;this.time = time;}public int compareTo(Path another) {return value - another.value;}}}class Scanner {BufferedReader br = new BufferedReader(new InputStreamReader(System.in));StringTokenizer st = new StringTokenizer("");public Scanner() throws Exception {}public int nextInt() throws Exception {return Integer.parseInt(next());}public long nextLong() throws Exception {return Long.parseLong(next());}public String next() throws Exception {if (!st.hasMoreTokens()) {st = new StringTokenizer(br.readLine());}return st.nextToken();}}