include iostream include cmath using namespace std double determinant

#include <iostream>
#include <cmath>

using namespace std;

double determinant(int **array, size_t n) {
    double det = 0;
    int **temp = new int *[n];
    for (int i = 0; i < n; i++) {
        temp[i] = new int[n];
    }
    if (n == 2) {
        det = ((array[0][0] * array[1][1]) - (array[1][0] * array[0][1]));
    } else {
        for (int x = 0; x < n; x++) {
            int temp_i = 0;
            for (int i = 1; i < n; i++) {
                int temp_j = 0;
                for (int j = 0; j < n; j++) {
                    if (j == x) {
                        continue;
                    }
                    temp[temp_i][temp_j] = array[i][j];
                    temp_j++;
                }
                temp_i++;
            }
            det = det + (pow(-1, x) * array[0][x] * determinant(temp, n - 1));
        }
    }
    return det;
}

// Основная функция
int main() {
    size_t n;
    double determ;
    cout << "enter dimension: ";
    cin >> n;
    int **arr = new int *[n];
    for (int i = 0; i < n; i++) {
        arr[i] = new int[n];
        for (int j = 0; j < n; j++) {
            cout << "mas[" << i << "][" << j << "]=";
            cin >> arr[i][j];
        }
    }
    determ = determinant(arr, n);
    cout << "determ = " << determ << endl;
    return 0;
}