結果
問題 | No.1477 Lamps on Graph |
ユーザー |
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提出日時 | 2023-04-17 14:52:47 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 800 ms / 2,000 ms |
コード長 | 2,954 bytes |
コンパイル時間 | 2,832 ms |
コンパイル使用メモリ | 85,444 KB |
実行使用メモリ | 62,928 KB |
最終ジャッジ日時 | 2024-10-12 17:21:24 |
合計ジャッジ時間 | 23,494 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 38 |
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();Lamp[] lamps = new Lamp[n];ArrayList<ArrayList<Integer>> graph = new ArrayList<>();for (int i = 0; i < n; i++) {lamps[i] = new Lamp(i, sc.nextInt());graph.add(new ArrayList<>());}for (int i = 0; i < m; i++) {int a = sc.nextInt() - 1;int b = sc.nextInt() - 1;if (lamps[a].value < lamps[b].value) {graph.get(a).add(b);} else if (lamps[b].value < lamps[a].value) {graph.get(b).add(a);}}Arrays.sort(lamps);int k = sc.nextInt();boolean[] isOn = new boolean[n];for (int i = 0; i < k; i++) {isOn[sc.nextInt() - 1] = true;}StringBuilder sb = new StringBuilder();int count = 0;for (Lamp x : lamps) {if (isOn[x.idx]) {count++;sb.append(x.idx + 1).append("\n");for (int y : graph.get(x.idx)) {isOn[y] ^= true;}}}System.out.println(count);System.out.print(sb);}static class Lamp implements Comparable<Lamp> {int idx;int value;public Lamp(int idx, int value) {this.idx = idx;this.value = value;}public int compareTo(Lamp 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();}}