#include #include <stdio.h> using namespace std; int main () { int n; cin >> n; for (int i = 1 ; i <= n ; i ++) { for (int j = 1 ; j <= n + i - 1 ; j ++) { if (n - i + 1 <= j && n + i >= j) cout << "*"; else cout << " "; } cout << endl; } }