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 856 ms / 2,000 ms
コード長 2,949 bytes
コンパイル時間 2,958 ms
コンパイル使用メモリ 85,316 KB
実行使用メモリ 65,028 KB
最終ジャッジ日時 2024-12-23 03:17:39
合計ジャッジ時間 42,762 ms
ジャッジサーバーID
(参考情報)
judge1 / 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 53 ms
37,116 KB
testcase_01 AC 55 ms
37,192 KB
testcase_02 AC 55 ms
37,312 KB
testcase_03 AC 56 ms
37,064 KB
testcase_04 AC 54 ms
37,388 KB
testcase_05 AC 56 ms
37,388 KB
testcase_06 AC 531 ms
53,296 KB
testcase_07 AC 462 ms
51,344 KB
testcase_08 AC 351 ms
48,868 KB
testcase_09 AC 572 ms
54,188 KB
testcase_10 AC 542 ms
53,360 KB
testcase_11 AC 619 ms
54,672 KB
testcase_12 AC 640 ms
55,568 KB
testcase_13 AC 661 ms
55,468 KB
testcase_14 AC 590 ms
55,336 KB
testcase_15 AC 605 ms
55,384 KB
testcase_16 AC 773 ms
61,956 KB
testcase_17 AC 736 ms
62,016 KB
testcase_18 AC 800 ms
62,316 KB
testcase_19 AC 767 ms
61,808 KB
testcase_20 AC 785 ms
62,364 KB
testcase_21 AC 808 ms
62,080 KB
testcase_22 AC 799 ms
61,932 KB
testcase_23 AC 801 ms
62,008 KB
testcase_24 AC 721 ms
61,816 KB
testcase_25 AC 755 ms
61,852 KB
testcase_26 AC 699 ms
62,024 KB
testcase_27 AC 776 ms
62,336 KB
testcase_28 AC 726 ms
62,380 KB
testcase_29 AC 755 ms
62,396 KB
testcase_30 AC 704 ms
62,656 KB
testcase_31 AC 583 ms
59,668 KB
testcase_32 AC 644 ms
62,300 KB
testcase_33 AC 652 ms
61,576 KB
testcase_34 AC 490 ms
55,568 KB
testcase_35 AC 423 ms
52,604 KB
testcase_36 AC 571 ms
59,868 KB
testcase_37 AC 224 ms
46,736 KB
testcase_38 AC 573 ms
61,536 KB
testcase_39 AC 278 ms
47,672 KB
testcase_40 AC 502 ms
56,236 KB
testcase_41 AC 514 ms
59,348 KB
testcase_42 AC 609 ms
61,848 KB
testcase_43 AC 537 ms
59,444 KB
testcase_44 AC 328 ms
49,652 KB
testcase_45 AC 517 ms
58,920 KB
testcase_46 AC 367 ms
49,708 KB
testcase_47 AC 763 ms
64,524 KB
testcase_48 AC 620 ms
57,620 KB
testcase_49 AC 856 ms
65,028 KB
testcase_50 AC 512 ms
53,512 KB
testcase_51 AC 652 ms
59,828 KB
testcase_52 AC 706 ms
62,652 KB
testcase_53 AC 290 ms
48,568 KB
testcase_54 AC 456 ms
51,572 KB
testcase_55 AC 681 ms
62,400 KB
testcase_56 AC 381 ms
50,596 KB
testcase_57 AC 509 ms
55,352 KB
testcase_58 AC 216 ms
47,552 KB
testcase_59 AC 380 ms
50,708 KB
testcase_60 AC 679 ms
61,912 KB
testcase_61 AC 161 ms
42,568 KB
testcase_62 AC 57 ms
37,428 KB
testcase_63 AC 317 ms
48,272 KB
testcase_64 AC 184 ms
43,940 KB
testcase_65 AC 90 ms
38,592 KB
testcase_66 AC 155 ms
42,756 KB
testcase_67 AC 167 ms
43,208 KB
testcase_68 AC 191 ms
43,200 KB
testcase_69 AC 154 ms
40,568 KB
testcase_70 AC 227 ms
47,164 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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