結果

問題 No.762 PDCAパス
ユーザー Pump0129Pump0129
提出日時 2018-12-12 13:34:27
言語 Java21
(openjdk 21)
結果
AC  
実行時間 512 ms / 2,000 ms
コード長 3,722 bytes
コンパイル時間 2,281 ms
コンパイル使用メモリ 79,528 KB
実行使用メモリ 70,004 KB
最終ジャッジ日時 2024-09-25 03:33:14
合計ジャッジ時間 12,392 ms
ジャッジサーバーID
(参考情報)
judge5 / judge3
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
50,184 KB
testcase_01 AC 53 ms
50,200 KB
testcase_02 AC 53 ms
49,976 KB
testcase_03 AC 54 ms
49,888 KB
testcase_04 AC 53 ms
50,384 KB
testcase_05 AC 53 ms
50,264 KB
testcase_06 AC 54 ms
50,364 KB
testcase_07 AC 54 ms
50,292 KB
testcase_08 AC 54 ms
50,440 KB
testcase_09 AC 54 ms
50,236 KB
testcase_10 AC 54 ms
50,012 KB
testcase_11 AC 56 ms
50,304 KB
testcase_12 AC 54 ms
50,272 KB
testcase_13 AC 53 ms
50,036 KB
testcase_14 AC 53 ms
50,012 KB
testcase_15 AC 55 ms
50,328 KB
testcase_16 AC 55 ms
50,500 KB
testcase_17 AC 56 ms
50,148 KB
testcase_18 AC 55 ms
50,076 KB
testcase_19 AC 53 ms
49,932 KB
testcase_20 AC 54 ms
50,344 KB
testcase_21 AC 53 ms
50,452 KB
testcase_22 AC 287 ms
58,244 KB
testcase_23 AC 287 ms
57,900 KB
testcase_24 AC 431 ms
70,004 KB
testcase_25 AC 512 ms
69,720 KB
testcase_26 AC 312 ms
57,488 KB
testcase_27 AC 305 ms
57,976 KB
testcase_28 AC 392 ms
64,224 KB
testcase_29 AC 393 ms
64,248 KB
testcase_30 AC 379 ms
64,556 KB
testcase_31 AC 389 ms
64,152 KB
testcase_32 AC 386 ms
64,312 KB
testcase_33 AC 360 ms
62,288 KB
testcase_34 AC 361 ms
62,024 KB
testcase_35 AC 358 ms
61,884 KB
testcase_36 AC 317 ms
59,672 KB
testcase_37 AC 330 ms
59,636 KB
testcase_38 AC 345 ms
60,048 KB
testcase_39 AC 336 ms
60,036 KB
testcase_40 AC 317 ms
59,620 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 #

package net.ipipip0129.yukicoder.no762;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class Main {
    public static void main(String[] args) throws IOException {
        // 入力が多いときはこれを使う。(Scanner はなじみ深いが遅い)
        // reader.readLine() これで一行を取得する。
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        String[] split_str = reader.readLine().split(" ");
        int leaf_num = Integer.parseInt(split_str[0]);
        int pass_num = Integer.parseInt(split_str[1]);

        PDCALeaf[] pdcaLeaves = new PDCALeaf[leaf_num];

        String pdca_str = reader.readLine();

        // 頂点の構築
        for (int i = 0; i < leaf_num; i++) {
            switch (pdca_str.charAt(i)) {
                case 'P':
                    pdcaLeaves[i] = new PDCALeaf(PDCA.Plan, -1);
                    break;
                case 'D':
                    pdcaLeaves[i] = new PDCALeaf(PDCA.Do, -1);
                    break;
                case 'C':
                    pdcaLeaves[i] = new PDCALeaf(PDCA.Check, -1);
                    break;
                case 'A':
                    pdcaLeaves[i] = new PDCALeaf(PDCA.Act, 1);
                    break;
            }
        }

        // パスの構築
        for (int i = 0; i < pass_num; i++) {
            split_str = reader.readLine().split(" ");
            int a_num = Integer.parseInt(split_str[0]) - 1;
            int b_num = Integer.parseInt(split_str[1]) - 1;
            PDCA a_type = pdcaLeaves[a_num].getType();
            PDCA b_type = pdcaLeaves[b_num].getType();

            if ((a_type == PDCA.Act && b_type == PDCA.Check) ||
                    (a_type == PDCA.Check && b_type == PDCA.Do) ||
                    (a_type == PDCA.Do && b_type == PDCA.Plan)) {
                pdcaLeaves[b_num].addLeaf(a_num);
            } else if ((a_type == PDCA.Check && b_type == PDCA.Act) ||
                    (a_type == PDCA.Do && b_type == PDCA.Check) ||
                    (a_type == PDCA.Plan && b_type == PDCA.Do)) {
                pdcaLeaves[a_num].addLeaf(b_num);
            }
        }

        long ans = 0;

        // パスの集計
        for (int i = 0; i < leaf_num; i++) {
            if (pdcaLeaves[i].getType() == PDCA.Plan) {
                ans += getWeight(pdcaLeaves, i);
            }
        }

        System.out.println(ans % 1000000007);

        reader.close();
    }

    static long getWeight(PDCALeaf[] leaves, int leaf) {
        if (0 <= leaves[leaf].getWeight()) {
            return leaves[leaf].getWeight();
        } else {
            int weight = 0;
            for (int l : leaves[leaf].getLeaf_list()) {
                weight += getWeight(leaves, l);
            }

            leaves[leaf].setWeight(weight);
            return weight;
        }
    }
}

class PDCALeaf {

    PDCA type_pdca;
    long weight;
    List<Integer> leaf_list;

    PDCALeaf(PDCA type, int weight) {
        this.type_pdca = type;
        this.weight = weight;
        this.leaf_list = new ArrayList<>();
    }

    void addLeaf(int leaf_num) {
        leaf_list.add(leaf_num);
    }

    PDCA getType() {
        return type_pdca;
    }

    List<Integer> getLeaf_list() {
        return leaf_list;
    }

    long getWeight() {
        return weight;
    }

    public void setWeight(long weight) {
        this.weight = weight;
    }
}

enum PDCA {
    Plan,
    Do,
    Check,
    Act
}
0