結果

問題 No.762 PDCAパス
ユーザー tentententen
提出日時 2022-08-03 09:51:33
言語 Java21
(openjdk 21)
結果
AC  
実行時間 395 ms / 2,000 ms
コード長 2,796 bytes
コンパイル時間 2,383 ms
コンパイル使用メモリ 78,724 KB
実行使用メモリ 65,580 KB
最終ジャッジ日時 2024-09-12 22:36:06
合計ジャッジ時間 12,171 ms
ジャッジサーバーID
(参考情報)
judge2 / judge1
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 55 ms
50,548 KB
testcase_01 AC 56 ms
50,412 KB
testcase_02 AC 55 ms
50,468 KB
testcase_03 AC 56 ms
50,156 KB
testcase_04 AC 56 ms
50,284 KB
testcase_05 AC 55 ms
50,392 KB
testcase_06 AC 55 ms
50,436 KB
testcase_07 AC 56 ms
49,928 KB
testcase_08 AC 55 ms
50,060 KB
testcase_09 AC 56 ms
50,316 KB
testcase_10 AC 56 ms
50,400 KB
testcase_11 AC 56 ms
50,420 KB
testcase_12 AC 57 ms
50,436 KB
testcase_13 AC 55 ms
50,372 KB
testcase_14 AC 55 ms
50,416 KB
testcase_15 AC 56 ms
50,536 KB
testcase_16 AC 56 ms
50,104 KB
testcase_17 AC 55 ms
50,300 KB
testcase_18 AC 56 ms
50,352 KB
testcase_19 AC 55 ms
50,216 KB
testcase_20 AC 56 ms
49,916 KB
testcase_21 AC 57 ms
50,340 KB
testcase_22 AC 261 ms
57,008 KB
testcase_23 AC 263 ms
58,980 KB
testcase_24 AC 383 ms
65,400 KB
testcase_25 AC 395 ms
65,580 KB
testcase_26 AC 288 ms
59,592 KB
testcase_27 AC 291 ms
59,676 KB
testcase_28 AC 384 ms
62,900 KB
testcase_29 AC 379 ms
63,100 KB
testcase_30 AC 365 ms
63,092 KB
testcase_31 AC 374 ms
63,216 KB
testcase_32 AC 378 ms
63,104 KB
testcase_33 AC 347 ms
61,116 KB
testcase_34 AC 339 ms
60,848 KB
testcase_35 AC 348 ms
60,848 KB
testcase_36 AC 303 ms
59,056 KB
testcase_37 AC 298 ms
58,688 KB
testcase_38 AC 301 ms
59,120 KB
testcase_39 AC 296 ms
58,212 KB
testcase_40 AC 299 ms
58,532 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

import java.io.*;
import java.util.*;

public class Main {
    static final int MOD = 1000000007;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int m = sc.nextInt();
        char[] types = sc.next().toCharArray();
        ArrayList<ArrayList<Integer>> graph = new ArrayList<>();
        for (int i = 0; i < n; i++) {
            graph.add(new ArrayList<>());
        }
        for (int i = 0; i < m; i++) {
            int left = sc.nextInt() - 1;
            int right = sc.nextInt() - 1;
            if ((types[left] == 'P' && types[right] == 'D') ||
                (types[left] == 'D' && types[right] == 'C') ||
                (types[left] == 'C' && types[right] == 'A') ) {
                    graph.get(left).add(right);
            }
            if ((types[left] == 'D' && types[right] == 'P') ||
                (types[left] == 'C' && types[right] == 'D') ||
                (types[left] == 'A' && types[right] == 'C') ) {
                    graph.get(right).add(left);
            }
        }
        int[] counts = new int[n];
        for (int i = 0; i < n; i++) {
            if (types[i] == 'A') {
                counts[i] = 1;
            }
        }
        for (int i = 0; i < n; i++) {
            if (types[i] == 'C') {
                for (int x : graph.get(i)) {
                    counts[i] += counts[x];
                    counts[i] %= MOD;
                }
            }
        }
        for (int i = 0; i < n; i++) {
            if (types[i] == 'D') {
                for (int x : graph.get(i)) {
                    counts[i] += counts[x];
                    counts[i] %= MOD;
                }
            }
        }
        int ans = 0;
        for (int i = 0; i < n; i++) {
            if (types[i] == 'P') {
                for (int x : graph.get(i)) {
                    counts[i] += counts[x];
                    counts[i] %= MOD;
                }
                ans += counts[i];
                ans %= MOD;
            }
        }
        System.out.println(ans);
    }
}

class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    
    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 String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
}
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