DSA - Loop

 1. Print x:

int main() {
    int n;
    cin >> n;
    for (int i = 0; i < n * n; i++) {
        int row = i / n;
        int col = i % n;

        if (row == col || row + col == n - 1) {
            cout << "*";
        } else {
            cout << " ";
        }

        if (col == n - 1) {
            cout << endl;
        }
    }
}