我是第一个做对的

真的不敢相信，好人做到底

#include <iostream>
#include <vector>
using namespace std;

int main() {
    vector<vector<char>> ans(3, vector<char>(3));  // 存放正确答案
    vector<vector<char>> guess(3, vector<char>(3));  // 存放猜测答案
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            cin >> ans[i][j];
        }
    }
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            cin >> guess[i][j];
        }
    }

    int green = 0, yellow = 0;
    vector<int> cnt_a(26), cnt_b(26);  // 分别记录正确答案和猜测答案中每个字母的出现次数
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            if (ans[i][j] == guess[i][j]) {  // 猜对了位置
                green++;
            } else {  // 没有猜对位置
                cnt_a[ans[i][j] - 'A']++;
                cnt_b[guess[i][j] - 'A']++;
            }
        }
    }
    for (int i = 0; i < 26; i++) {
        yellow += min(cnt_a[i], cnt_b[i]);
    }
    cout << green << endl << yellow << endl;

    return 0;
}