結果

問題 No.1382 Travel in Mitaru city
ユーザー tentententen
提出日時 2023-01-12 10:00:42
言語 Java21
(openjdk 21)
結果
AC  
実行時間 639 ms / 2,000 ms
コード長 2,949 bytes
コンパイル時間 2,329 ms
コンパイル使用メモリ 91,788 KB
実行使用メモリ 65,492 KB
最終ジャッジ日時 2024-06-02 08:15:53
合計ジャッジ時間 33,451 ms
ジャッジサーバーID
(参考情報)
judge5 / judge4
このコードへのチャレンジ
(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 44 ms
36,960 KB
testcase_01 AC 45 ms
37,252 KB
testcase_02 AC 46 ms
37,228 KB
testcase_03 AC 45 ms
37,096 KB
testcase_04 AC 45 ms
37,144 KB
testcase_05 AC 45 ms
37,164 KB
testcase_06 AC 411 ms
53,236 KB
testcase_07 AC 376 ms
51,312 KB
testcase_08 AC 269 ms
49,832 KB
testcase_09 AC 429 ms
54,440 KB
testcase_10 AC 418 ms
52,624 KB
testcase_11 AC 495 ms
55,608 KB
testcase_12 AC 496 ms
54,548 KB
testcase_13 AC 527 ms
56,448 KB
testcase_14 AC 462 ms
54,292 KB
testcase_15 AC 465 ms
54,360 KB
testcase_16 AC 607 ms
61,964 KB
testcase_17 AC 639 ms
61,756 KB
testcase_18 AC 627 ms
62,088 KB
testcase_19 AC 605 ms
62,272 KB
testcase_20 AC 621 ms
61,760 KB
testcase_21 AC 586 ms
62,136 KB
testcase_22 AC 618 ms
62,676 KB
testcase_23 AC 628 ms
62,116 KB
testcase_24 AC 623 ms
62,028 KB
testcase_25 AC 621 ms
62,064 KB
testcase_26 AC 566 ms
61,992 KB
testcase_27 AC 582 ms
62,024 KB
testcase_28 AC 606 ms
62,376 KB
testcase_29 AC 591 ms
62,536 KB
testcase_30 AC 510 ms
62,304 KB
testcase_31 AC 497 ms
60,028 KB
testcase_32 AC 545 ms
62,592 KB
testcase_33 AC 538 ms
61,452 KB
testcase_34 AC 394 ms
55,700 KB
testcase_35 AC 342 ms
52,592 KB
testcase_36 AC 427 ms
59,852 KB
testcase_37 AC 186 ms
46,612 KB
testcase_38 AC 483 ms
61,888 KB
testcase_39 AC 227 ms
47,780 KB
testcase_40 AC 403 ms
56,404 KB
testcase_41 AC 436 ms
59,680 KB
testcase_42 AC 492 ms
61,932 KB
testcase_43 AC 420 ms
59,928 KB
testcase_44 AC 268 ms
50,184 KB
testcase_45 AC 415 ms
59,216 KB
testcase_46 AC 289 ms
48,704 KB
testcase_47 AC 576 ms
64,548 KB
testcase_48 AC 472 ms
57,920 KB
testcase_49 AC 628 ms
65,492 KB
testcase_50 AC 393 ms
53,532 KB
testcase_51 AC 505 ms
61,028 KB
testcase_52 AC 535 ms
63,264 KB
testcase_53 AC 249 ms
48,636 KB
testcase_54 AC 354 ms
53,412 KB
testcase_55 AC 521 ms
62,060 KB
testcase_56 AC 302 ms
51,344 KB
testcase_57 AC 404 ms
55,856 KB
testcase_58 AC 175 ms
47,580 KB
testcase_59 AC 285 ms
50,928 KB
testcase_60 AC 493 ms
60,864 KB
testcase_61 AC 131 ms
42,692 KB
testcase_62 AC 46 ms
37,208 KB
testcase_63 AC 258 ms
48,348 KB
testcase_64 AC 153 ms
41,848 KB
testcase_65 AC 86 ms
38,612 KB
testcase_66 AC 128 ms
42,540 KB
testcase_67 AC 134 ms
42,220 KB
testcase_68 AC 161 ms
43,116 KB
testcase_69 AC 128 ms
41,108 KB
testcase_70 AC 183 ms
45,420 KB
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ソースコード

diff #

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();
        int s = sc.nextInt() - 1;
        int t = sc.nextInt() - 1;
        int[] amounts = new int[n];
        ArrayList<ArrayList<Integer>> graph = new ArrayList<>();
        for (int i = 0; i < n; i++) {
            amounts[i] = sc.nextInt();
            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);
        }
        PriorityQueue<Path> queue = new PriorityQueue<>();
        queue.add(new Path(s, amounts[s]));
        boolean[] visited = new boolean[n];
        int current = Integer.MAX_VALUE;
        int ans = 0;
        while (queue.size() > 0) {
            Path p = queue.poll();
            if (visited[p.idx]) {
                continue;
            }
            visited[p.idx] = true;
            if (p.value < current) {
                ans++;
                current = p.value;
            }
            for (int x : graph.get(p.idx)) {
                queue.add(new Path(x, amounts[x]));
            }
        }
        System.out.println(ans - 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 another.value - 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();
    }
    
}
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