Question

I am having a little problem here, I want to draw a vertical pyramid like this:

O
OO
OOO
OOOO
OOOOO
OOOO
OOO
OO
O

But I can’t seem to figure out how to do it. All I get is:

O
OO
OOO
OOOO
OOOOO
OOOOOO
OOOOOOO
OOOOOOOO
OOOOOOOOO

Here is my code:

int width = 5;

  for (int y = 1; y < width * 2; y++)
  {
    for (int x = 0; x < y; x++)
    {
      Console.Write("O");
    }
    Console.WriteLine();

  }

Answer 1

There are ways to do this with two loops, but here is a way to do it with one, and without an if condition:

for (int y = 1; y < width * 2; y++)
{
    int numOs = width - Math.Abs(width - y);
    for (int x = 0; x < numOs; x++)
    {
        Console.Write("O");
    }
    Console.WriteLine();
}