C++ program to display triangle using while/for loop

[Baka otaku]

I need to display the following triangle ~

1 2 3 4 5
  1 2 3 4
    1 2 3
      1 2
        1
      1 2
    1 2 3
  1 2 3 4
1 2 3 4 5
 

I got the first part sort of right...but I cant figure out how to go about the lower half....I tried using switch but got messed up @__@

heres what I have :

#include <iostream>
#include <iomanip>
using namespace std;
 
int main()
{ int row=5;
int x=0;
while (row > 0)
{for(int a=1; a<=x; a++)
{cout<<" ";               
}
for (int b=1; b<=row; b++)
{cout << b;
}
x++;
row = row - 1;
cout << endl;
}
 
system("pause"); //end while         
return 0;
}
 

Any kind of help or suggestion is appreciated ^_^

[Banfa]

Your want to draw 9 rows not five, for the first 4 rows x increases, for the second 4 rows x decreases for the last row it doesn't matter because you aren't going to use x again.

[Baka otaku]

hmm ok so I use 9 rows...and I should include the latter part in the same..with the conditions for x ? I'll try it....thanks !