c18_03.cpp

it can help you use C++ program we

#include <iostream >
#include <iomanip >
using namespace std;

int main()
{
	for(int n =1;n<5;n++)
	{
		cout<< setfill(' ') << setw(n) << " "
			<< setfill('*') << setw(9-2*n) 
			<< "*" <<endl;
	}

	return 0;
}