結果
問題 |
No.1577 織姫と彦星2
|
ユーザー |
![]() |
提出日時 | 2023-07-18 17:04:15 |
言語 | Java (openjdk 23) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,229 bytes |
コンパイル時間 | 3,021 ms |
コンパイル使用メモリ | 91,680 KB |
実行使用メモリ | 333,504 KB |
最終ジャッジ日時 | 2024-09-18 16:22:37 |
合計ジャッジ時間 | 13,511 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 5 |
other | AC * 23 TLE * 11 -- * 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(); HashMap<Integer, ArrayList<Integer>> connections = new HashMap<>(); int[] values = new int[n + 2]; for (int i = 0; i < n + 2; i++) { values[i] = sc.nextInt(); for (int j = 0; j < 30; j++) { values[i] ^= (1 << j); if (!connections.containsKey(values[i])) { connections.put(values[i], new ArrayList<>()); } connections.get(values[i]).add(i); values[i] ^= (1 << j); } } ArrayList<ArrayList<Integer>> graph = new ArrayList<>(); for (int x : values) { if (connections.containsKey(x)) { graph.add(connections.get(x)); } else { graph.add(new ArrayList<>()); } } PriorityQueue<Path> queue = new PriorityQueue<>(); queue.add(new Path(0, 0)); int[] costs = new int[n + 2]; Arrays.fill(costs, Integer.MAX_VALUE); while (queue.size() > 0) { Path p = queue.poll(); if (costs[p.idx] <= p.value) { continue; } costs[p.idx] = p.value; for (int x : graph.get(p.idx)) { queue.add(new Path(x, p.value + 1)); } } if (costs[1] == Integer.MAX_VALUE) { System.out.println(-1); } else { System.out.println(costs[1] - 1); } } static class Path implements Comparable<Path> { int idx; int value; public Path(int idx, int value) { this.idx = idx; this.value = value; } public int compareTo(Path another) { return value - another.value; } } } 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(); } }