#include <iostream> using namespace std; int main() { int n; cout << "Enter Number: "; cin >> n; for (int i = 1; i <= n; i++) { for (int j = 1; j <= 2 * n + 1; j++) if (j >= n - i + 2 && j <= n + i) cout << '*'; else cout << ' '; cout << endl; } return 0; }