include iostream include vector include cmath using namespace std void

#include <iostream>
#include <vector>
#include <cmath>

using namespace std;

void Getminor(vector <vector<double> > a, vector <vector<double> > &b, int x, int y, int size) {

    int xCount = 0, yCount = 0;
    for (int i = 0; i < size; i++)
    {
        if (i != x)
        {
            yCount = 0;
            for (int j = 0; j < size; j++)
            {
                if (j != y)
                {
                    b[xCount][yCount] = a[i][j];
                    yCount++;
                }
            }
            xCount++;
        }
    }
}

double FindDeterminant(vector <vector<double> > a, int size) {
    // останавливаем рекурсию, если матрица
    // состоит из одного элемента
    if (size == 1)
    {
        return a[0][0];
    }
    else
    {
        double det = 0.0;
        vector <vector<double> > minor(size - 1, vector <double> (size -1));
        for (int i = 0; i < size; i++)
        {
            Getminor(a, minor, 0, i, size);
            // Рекурсия
            det += (((i % 2) == 0) ? 1 : -1) * a[0][i] * FindDeterminant(minor, size - 1);
        }
        return det;
    }
}


double FindAdditionalDeterminant(vector <vector<double> > a, vector <double> b, int size, int j) {
    for (int i = 0; i < size; i++){
    	a[i][j] = b[i];
    }

    double determinant = FindDeterminant(a, size);

    return determinant;

}

int main() {

    freopen("input.txt", "r", stdin);
    int n;
    cin >> n;
    vector <vector<double> > a(n, vector <double> (n));
    for (int i = 0; i < n; ++i) {
    	for (int j = 0; j < n; ++j) {
    		cin >>a[i][j];
    	}
    }
    vector <double> b(n);
    for (int i = 0; i < n; ++i) {
    		cin >>b[i];
    }

    cout << "n:" << n << endl;
    cout << "matr a:" << endl;
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < n; j++)
            cout << a[i][j] <<"  ";
        cout << endl;
    }
    cout << "vect b:" << endl;
    for (int i; i < n; i++) {
    	cout << b[i] << endl;
    }

    cout << endl;
    // находим определитель матрицы
    double determinant = FindDeterminant(a, n);
    vector <double> det(n);
    vector <double> answers(n);
    for (int i = 0; i < n; ++i) {
    	det[i] = FindAdditionalDeterminant(a, b, n, i);
    	answers[i] = det[i] / determinant;
    }

    for (int i; i < n; i++) {
    	cout << answers[i] << endl;
    }
}