printing help

[lemoneer]

Hey guys, I am very new to c++ and needed some help with a problem I can't seem to get. I need to generate shapes, an up arrow, and a sideways arrow. I have done the side arrow with no problem ( See code ). My issue comes when I am trying to do the same thing but vertically. I have tried a multitude of ways but can't seem to figure it out. Please let me know what I can try!
Thanks in advance.
Can PM me if it's easier, I'll be checking it often.

Here is what my current code produces:

https://ibb.co/qD12mNL

And here is what I want:
https://ibb.co/hB9CpMF

#include <iostream>
using namespace std;

int main ()
{


int i = 0;
int size = 12;
char letter = 'B';

while (i < size)
{
        //1st half of arrow
        if (i < size / 2 - 1)
        {
        int j = 0;
            do
            {
            cout << ' ';
             j++;
            }
            while (j < size / 2);

            int k = 0;
            do
            {
            cout << letter;
            k++;
            }
            while (k < i + 1);

        }
        //makes the stem
        else if (i == size / 2 - 1 || i == size / 2)
        {
        int j = 0;
            do
            {
            cout << letter;
            j++;
            }
            while (j < size);
        }
        //2nd half of arrow
        else
        {
            int j = size / 2;
            do
            {
            cout << ' ';

            j--;
            }
            while (j > 0);

            int k = size - i;
            do
            {
            cout << letter;
            k--;
            }
            while (k > 0);
        }

        //creates new line
    cout << endl;
    i++;
    }
    while (i < size);
 
}

[jonnin]

perhaps something like this will get you started ...

int main()
{
  int l = 9;
  int r = 10;
  for(int j = 0; j < 10; j++)
  {
    for(int i = 0; i < 20; i++)
    {
      if(i >= l && i <= r)
        cout << '*';
      else cout << ' '; 
  }	  
  cout << endl;
   l--; r++;
  }		
}