結果
問題 | No.1805 Approaching Many Typhoon |
ユーザー |
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提出日時 | 2024-07-29 17:56:34 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 108 ms / 2,000 ms |
コード長 | 2,125 bytes |
コンパイル時間 | 2,387 ms |
コンパイル使用メモリ | 79,120 KB |
実行使用メモリ | 52,492 KB |
最終ジャッジ日時 | 2024-07-29 17:56:41 |
合計ジャッジ時間 | 6,566 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 35 |
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 start = sc.nextInt() - 1;int goal = sc.nextInt() - 1;List<List<Integer>> 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;graph.get(a).add(b);graph.get(b).add(a);}boolean[] prohibited = new boolean[n];int u = sc.nextInt();while (u-- > 0) {prohibited[sc.nextInt() - 1] = true;}Deque<Integer> deq = new ArrayDeque<>();deq.add(start);boolean[] visited = new boolean[n];while (deq.size() > 0) {int idx = deq.poll();if (visited[idx] || prohibited[idx]) {continue;}visited[idx] = true;deq.addAll(graph.get(idx));}System.out.println(visited[goal] ? "Yes" : "No");}}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();}}}