Diamond

Hi there!

I wrote this program as my self teaching exercise, to print a diamond pattern. It works fine, but I've got a feeling that there must be a better way to do this, and to optimise the code. Could someone show me, please? Many thanks in anticipation.

Code:

//print diamond using *
#include <iostream.h>
#include <conio.h>

int main()
{
	int t, b, s, n;

	do
	{
		clrscr();
		cout << "Enter integer number: ";
		cin >> n;
		n += 1;
		n /= 2;

		//top of diamond or pyramid
		for (t = 1; t <= n; t++)
		{
			for (b = n; b >= t; b--)
				cout << " ";
				for (s = 1; s <= (t * 2 - 1); s++)
					cout << "*";
			cout << endl;
		}
		//bottom of diamond
		for (t = 1; t <= n - 1; t++)
		{
			for (b = 1; b <= t + 1; b++)
				cout << " ";
				for (s = 1; s <= n * 2 - (t * 2 + 1); s++)
					cout << "*";
			cout << endl;
		}
		cout << "Any key again, Esc to quit.";
	} while (getch()!=27);
	return 0;
}

n += 1; can be written as n++;

And your inner for loops have a weird hiearchy:

Code:

for (b = n; b >= t; b--)
   cout << " ";
   for (s = 1; s <= (t * 2 - 1); s++)
      cout << "*";

Both for-loops should be on the same level.

Except for those, the program looks fine.