hello - an upside down triangle

[shirshir950]

hello , i am trying to program for school an upside down triangle .
so far succeded but have some problem with it.
first one is that the rows of the triangle goes like this : (exp- 5,3,1)
and not 5,4,3,2,1.
second one is that when i tried to make boundries {} to the loops (for)
the code changes to a different thing than it was without the boundries {}



i would like to have help with it .
thank you all .

  #include <iostream>
using namespace std;

void main()
{
	int num;

	cout << "Enter a number" << endl;
	cin >> num;


	for (int rows = num;  rows > 0;  rows = rows - 2)
	{
		for (int spaces = 0; spaces < (num - rows) / 2; spaces++)
		{
			cout << " ";
		}
		for (int stars = 0; stars < rows; stars++)
				cout << "*";
				cout << endl;
			
	}


system("pause");

}

[goldenchicken]

This is the correct way to do it. There is nothing wrong with this except that main should return int and not void.