//returns the matrix after deleting the rth row and cth column
MAT smallerMat(MAT m, int n, int r, int c) {
MAT res;
for(int i = 0; i < n; i++) {
if(i == r) continue;
vector<int> row;
for(int j = 0; j < n; j++) {
if(j == c) continue;
row.push_back(m[i][j]);
}
assert(row.size() == n - 1);
res.push_back(row);
}
return res;
}
int main() {
int arr[][6] = {{1, 2, 3, 1, 2, 3},
{4, 6, 2, 1, 2, 3},
{112, 23, 4, 1, 2, 3},
{1, 2, 3, 233432, 2, 3},
{1, 1, 2, 1, 2, 3},
{1, 23, 42324, 1, 2, 3}
};
int n = 6;
MAT m;
for(int i = 0; i < n; i++) {
m.push_back(vector<int>(arr[i], arr[i] + n));
}
cout << det(m, n) << "\n";
return 0;
}