您的答案為: 1A0B
正確答案為: 1A1B

我測試過很多組測資都是正確的... 實在不懂這個測資到底是什麼#@#
有人也遇到一樣的嗎?@@

我的程式碼:

import java.util.Scanner;

public class Test {

    static String[] nAnB(int[][] data, int[] answer, int n) {
        String[] result = new String[n];
        boolean[] checkedA = new boolean[4];
        int[] checkedB = new int[4];
        int[] codeA = new int[n], codeB = new int[n];

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < 4; j++) {
                // check A
                if (data[i][j] == answer[j]) {
                    if (checkedB[j] > 0) { codeB[i] -= checkedB[j]; checkedB[j] = 0; }
                    codeA[i]++; checkedA[j] = true; continue;
                }
                // check B
                for (int k = 0; k < 4; k++) {
                    if (!checkedA[k] && checkedB[k] == 0) {
                        if (data[i][j] == answer[k]) { codeB[i]++; checkedB[k]++; break; }
                    }
                }
            }
            for (int k = 0; k < 4; k++) { checkedA[k] = false; checkedB[k] = 0; }
            result[i] = codeA[i] + "A" + codeB[i] + "B";
        }

        return result;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int[] answer = new int[4];

        while (scanner.hasNext()) {
            for (int i = 0; i < 4; i++) answer[i] = scanner.nextInt();
            int n = scanner.nextInt();
            int[][] data = new int[n][4];
            String[] result = new String[n];

            for (int i = 0; i < n; i++) for (int j = 0; j < 4; j++) data[i][j] = scanner.nextInt();
            result = nAnB(data, answer, n);
            for (int i = 0; i < n; i++) System.out.println(result[i]);
        }
    }
}

試到一組測資：

3 4 0 0
1
1 0 0 2

應該是 1A1B 但你的 code 得到 1A0B。

您的答案為: 1A0B
正確答案為: 1A1B

我測試過很多組測資都是正確的... 實在不懂這個測資到底是什麼#@#
有人也遇到一樣的嗎?@@

我的程式碼:

import java.util.Scanner;

public class Test {

    static String[] nAnB(int[][] data, int[] answer, int n) {
        String[] result = new String[n];
        boolean[] checkedA = new boolean[4];
        int[] checkedB = new int[4];
        int[] codeA = new int[n], codeB = new int[n];

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < 4; j++) {
                // check A
                if (data[i][j] == answer[j]) {
                    if (checkedB[j] > 0) { codeB[i] -= checkedB[j]; checkedB[j] = 0; }
                    codeA[i]++; checkedA[j] = true; continue;
                }
                // check B
                for (int k = 0; k < 4; k++) {
                    if (!checkedA[k] && checkedB[k] == 0) {
                        if (data[i][j] == answer[k]) { codeB[i]++; checkedB[k]++; break; }
                    }
                }
            }
            for (int k = 0; k < 4; k++) { checkedA[k] = false; checkedB[k] = 0; }
            result[i] = codeA[i] + "A" + codeB[i] + "B";
        }

        return result;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int[] answer = new int[4];

        while (scanner.hasNext()) {
            for (int i = 0; i < 4; i++) answer[i] = scanner.nextInt();
            int n = scanner.nextInt();
            int[][] data = new int[n][4];
            String[] result = new String[n];

            for (int i = 0; i < n; i++) for (int j = 0; j < 4; j++) data[i][j] = scanner.nextInt();
            result = nAnB(data, answer, n);
            for (int i = 0; i < n; i++) System.out.println(result[i]);
        }
    }
}

其實我看不懂你的邏輯。

我是先比對完A的部分，再去比對B的部分。

A的部分比較簡單就不說了。

B的部分：已經是A的位置就不要比對了。（我是用boolean[]把位置存起來）

找到一個B也把這個B的位置存起來，下次比對時也跳過這個位置。（這裡我也是用一個boolean[]把位置存起來）

下面附上我的程式碼，希望你能先想過，不要直接拿來用。

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

//import java.util.Scanner;

import java.util.Arrays;

public class a291 {

public static void main(String[] args) throws NumberFormatException, IOException {

// Scanner scan = new Scanner(System.in);

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

int[] ans = new int[4];

int n;

int[] guess = new int[4];

String str;

// while (scan.hasNext()) {

while ((str = br.readLine()) != null) {

// str = scan.nextLine();

String[] an = str.split(" ");

for (int i = 0; i < 4; ++i) {

// ans[i] = scan.nextInt();

ans[i] = Integer.parseInt(an[i]);

}

StringBuilder sb = new StringBuilder();

// n = Integer.parseInt(scan.nextLine());

n = Integer.parseInt(br.readLine());

// str = scan.nextLine();

for (int i = 0; i < n; ++i) {

// str = scan.nextLine();

str = br.readLine();

String[] s = str.split(" ");

guess[0] = Integer.parseInt(s[0]);

guess[1] = Integer.parseInt(s[1]);

guess[2] = Integer.parseInt(s[2]);

guess[3] = Integer.parseInt(s[3]);

// guess[0] = scan.nextInt();

// guess[1] = scan.nextInt();

// guess[2] = scan.nextInt();

// guess[3] = scan.nextInt();

boolean[] isCorrect = new boolean[4];

int a = 0, b = 0;

for (int j = 0; j < 4; ++j) {

if (ans[j] == guess[j]) {

a++;

isCorrect[j] = true;

}

}

boolean[] isCompare = Arrays.copyOf(isCorrect, isCorrect.length);

for (int j = 0; j < 4; ++j) {

if (!isCorrect[j]) {

for (int k = 0; k < 4; ++k) {

if (!isCompare[k] && ans[j] == guess[k] && j != k) {

b++;

isCompare[k] = true;

break;

}

}

}

}

sb.append(a + "A" + b + "B\n");

}

System.out.println(sb);

}

// scan.close();

}

}

您的答案為: 1A0B
正確答案為: 1A1B

我測試過很多組測資都是正確的... 實在不懂這個測資到底是什麼#@#
有人也遇到一樣的嗎?@@

我的程式碼:

import java.util.Scanner;

public class Test {

    static String[] nAnB(int[][] data, int[] answer, int n) {
        String[] result = new String[n];
        boolean[] checkedA = new boolean[4];
        int[] checkedB = new int[4];
        int[] codeA = new int[n], codeB = new int[n];

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < 4; j++) {
                // check A
                if (data[i][j] == answer[j]) {
                    if (checkedB[j] > 0) { codeB[i] -= checkedB[j]; checkedB[j] = 0; }
                    codeA[i]++; checkedA[j] = true; continue;
                }
                // check B
                for (int k = 0; k < 4; k++) {
                    if (!checkedA[k] && checkedB[k] == 0) {
                        if (data[i][j] == answer[k]) { codeB[i]++; checkedB[k]++; break; }
                    }
                }
            }
            for (int k = 0; k < 4; k++) { checkedA[k] = false; checkedB[k] = 0; }
            result[i] = codeA[i] + "A" + codeB[i] + "B";
        }

        return result;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int[] answer = new int[4];

        while (scanner.hasNext()) {
            for (int i = 0; i < 4; i++) answer[i] = scanner.nextInt();
            int n = scanner.nextInt();
            int[][] data = new int[n][4];
            String[] result = new String[n];

            for (int i = 0; i < n; i++) for (int j = 0; j < 4; j++) data[i][j] = scanner.nextInt();
            result = nAnB(data, answer, n);
            for (int i = 0; i < n; i++) System.out.println(result[i]);
        }
    }
}

3 4 0 0
1
1 0 0 2

我找到我的問題了~

感謝大大的測資讓我釐清概念^^

您的答案為: 1A0B
正確答案為: 1A1B

我測試過很多組測資都是正確的... 實在不懂這個測資到底是什麼#@#
有人也遇到一樣的嗎?@@

我的程式碼:

import java.util.Scanner;

public class Test {

    static String[] nAnB(int[][] data, int[] answer, int n) {
        String[] result = new String[n];
        boolean[] checkedA = new boolean[4];
        int[] checkedB = new int[4];
        int[] codeA = new int[n], codeB = new int[n];

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < 4; j++) {
                // check A
                if (data[i][j] == answer[j]) {
                    if (checkedB[j] > 0) { codeB[i] -= checkedB[j]; checkedB[j] = 0; }
                    codeA[i]++; checkedA[j] = true; continue;
                }
                // check B
                for (int k = 0; k < 4; k++) {
                    if (!checkedA[k] && checkedB[k] == 0) {
                        if (data[i][j] == answer[k]) { codeB[i]++; checkedB[k]++; break; }
                    }
                }
            }
            for (int k = 0; k < 4; k++) { checkedA[k] = false; checkedB[k] = 0; }
            result[i] = codeA[i] + "A" + codeB[i] + "B";
        }

        return result;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int[] answer = new int[4];

        while (scanner.hasNext()) {
            for (int i = 0; i < 4; i++) answer[i] = scanner.nextInt();
            int n = scanner.nextInt();
            int[][] data = new int[n][4];
            String[] result = new String[n];

            for (int i = 0; i < n; i++) for (int j = 0; j < 4; j++) data[i][j] = scanner.nextInt();
            result = nAnB(data, answer, n);
            for (int i = 0; i < n; i++) System.out.println(result[i]);
        }
    }
}

您好 我的邏輯的確是怪怪的0.0
根據您的建議 重新思考後再寫了一遍成功AC
解題思路大致上是一樣的~ 感謝您喔
我的程式碼:

import java.util.Scanner;

public class JJavaJudgeTest {

    static String[][] data;

    static String[] nAnB(String[] password, int n) {
        String[] result = new String[n];
        boolean[] checkedA, checkedB;
        int getA, getB;

        for (int group = 0; group < n; group++) {
            getA = 0; getB = 0; checkedA = null; checkedA = new boolean[4];
            checkedB = null; checkedB = new boolean[4];

            for (int i = 0; i < 4; i++) {
                if (data[group][i].equals(password[i])) { getA++; checkedA[i] = checkedB[i] = true; }
            }

            if (getA < 4) {
                for (int i = 0; i < 4; i++) {
                    if (checkedB[i]) continue;
                    for (int check = 0; check < 4; check++) {
                        if (!checkedA[check] && data[group][i].equals(password[check])) {
                            getB++; checkedA[check] = true; break;
                        }
                    }
                }
            }

            result[group] = getA + "A" + getB + "B";
        }

        return result;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        while (scanner.hasNext()) {
            String[] password = new String[4];
            for (int i = 0; i < 4; i++) password[i] = scanner.next();
            int n = scanner.nextInt();
            data = new String[n][4];
            for (int i = 0; i < n; i++) {
                for (int j = 0; j < 4; j++) data[i][j] = scanner.next();
            }

            String[] result = nAnB(password, n);

            for (int i = 0; i < n; i++)
                System.out.println(result[i]);
        }
    }
}

您的答案為: 1A0B
正確答案為: 1A1B

我測試過很多組測資都是正確的... 實在不懂這個測資到底是什麼#@#
有人也遇到一樣的嗎?@@

我的程式碼:

import java.util.Scanner;

public class Test {

    static String[] nAnB(int[][] data, int[] answer, int n) {
        String[] result = new String[n];
        boolean[] checkedA = new boolean[4];
        int[] checkedB = new int[4];
        int[] codeA = new int[n], codeB = new int[n];

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < 4; j++) {
                // check A
                if (data[i][j] == answer[j]) {
                    if (checkedB[j] > 0) { codeB[i] -= checkedB[j]; checkedB[j] = 0; }
                    codeA[i]++; checkedA[j] = true; continue;
                }
                // check B
                for (int k = 0; k < 4; k++) {
                    if (!checkedA[k] && checkedB[k] == 0) {
                        if (data[i][j] == answer[k]) { codeB[i]++; checkedB[k]++; break; }
                    }
                }
            }
            for (int k = 0; k < 4; k++) { checkedA[k] = false; checkedB[k] = 0; }
            result[i] = codeA[i] + "A" + codeB[i] + "B";
        }

        return result;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int[] answer = new int[4];

        while (scanner.hasNext()) {
            for (int i = 0; i < 4; i++) answer[i] = scanner.nextInt();
            int n = scanner.nextInt();
            int[][] data = new int[n][4];
            String[] result = new String[n];

            for (int i = 0; i < n; i++) for (int j = 0; j < 4; j++) data[i][j] = scanner.nextInt();
            result = nAnB(data, answer, n);
            for (int i = 0; i < n; i++) System.out.println(result[i]);
        }
    }
}

import java.util.Scanner;

public class JJavaJudgeTest {

    static String[][] data;

    static String[] nAnB(String[] password, int n) {
        String[] result = new String[n];
        boolean[] checkedA, checkedB;
        int getA, getB;

        for (int group = 0; group < n; group++) {
            getA = 0; getB = 0; checkedA = null; checkedA = new boolean[4];
            checkedB = null; checkedB = new boolean[4];

            for (int i = 0; i < 4; i++) {
                if (data[group][i].equals(password[i])) { getA++; checkedA[i] = checkedB[i] = true; }
            }

            if (getA < 4) {
                for (int i = 0; i < 4; i++) {
                    if (checkedB[i]) continue;
                    for (int check = 0; check < 4; check++) {
                        if (!checkedA[check] && data[group][i].equals(password[check])) {
                            getB++; checkedA[check] = true; break;
                        }
                    }
                }
            }

            result[group] = getA + "A" + getB + "B";
        }

        return result;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        while (scanner.hasNext()) {
            String[] password = new String[4];
            for (int i = 0; i < 4; i++) password[i] = scanner.next();
            int n = scanner.nextInt();
            data = new String[n][4];
            for (int i = 0; i < n; i++) {
                for (int j = 0; j < 4; j++) data[i][j] = scanner.next();
            }

            String[] result = nAnB(password, n);

            for (int i = 0; i < n; i++)
                System.out.println(result[i]);
        }
    }
}

不用這麼客氣，我只是說出我的解法而已。

而且其實我也沒仔細看你的程式碼XD