結果
問題 | No.2569 はじめてのおつかいHard |
ユーザー | tenten |
提出日時 | 2023-12-13 15:07:34 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 1,318 ms / 2,000 ms |
コード長 | 3,683 bytes |
コンパイル時間 | 3,271 ms |
コンパイル使用メモリ | 91,792 KB |
実行使用メモリ | 109,628 KB |
最終ジャッジ日時 | 2024-09-27 05:23:08 |
合計ジャッジ時間 | 17,136 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 946 ms
75,736 KB |
testcase_01 | AC | 993 ms
75,524 KB |
testcase_02 | AC | 968 ms
75,704 KB |
testcase_03 | AC | 937 ms
75,604 KB |
testcase_04 | AC | 992 ms
75,624 KB |
testcase_05 | AC | 1,234 ms
101,528 KB |
testcase_06 | AC | 1,299 ms
90,312 KB |
testcase_07 | AC | 1,295 ms
109,628 KB |
testcase_08 | AC | 1,318 ms
109,156 KB |
testcase_09 | AC | 1,231 ms
90,292 KB |
testcase_10 | AC | 55 ms
50,268 KB |
testcase_11 | AC | 57 ms
50,484 KB |
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(); ArrayList<ArrayList<Path>> graph = new ArrayList<>(); ArrayList<ArrayList<Path>> reverse = new ArrayList<>(); for (int i = 0; i < n; i++) { graph.add(new ArrayList<>()); reverse.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)); reverse.get(b).add(new Path(a, c)); } long[] lastCost = getCost(n - 1, graph); long[] lastReverse = getCost(n - 1, reverse); long[] preCost = getCost(n - 2, graph); long[] preReverse = getCost(n - 2, reverse); StringBuilder sb = new StringBuilder(); for (int i = 0; i < n - 2; i++) { long ans = Math.min(lastReverse[i] + lastCost[n - 2] + preCost[i], preReverse[i] + preCost[n - 1] + lastCost[i]); if (ans >= Long.MAX_VALUE / 3) { ans = -1; } sb.append(ans).append("\n"); } System.out.print(sb); } static long[] getCost(int start, ArrayList<ArrayList<Path>> graph) { PriorityQueue<Path> queue = new PriorityQueue<>(); queue.add(new Path(start, 0)); long[] costs = new long[graph.size()]; Arrays.fill(costs, Long.MAX_VALUE / 3); 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)); } } return costs; } 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(); } }