I need help on making an isosceles triangle 2sides with 5 asterisks, and a base with 9 asterisks, and has no asterisks inside the triangle.

I've come up with the codes on a 2sides with 5 asterisks and the base with 9 asterisks, but this time, it has asterisks inside the triangle.

``````#include<iostream.h>

int main()
{ int a, b, c = 5, d=0;

for(a=1;a<=c;a++)

{
for(b=1;b<=c*2-1;b++)

if (b<=c+d&&b>=c-d)

cout<<"*";

else

cout<<" ";

cout<<"\n";

d++;

}
return 0;
}``````

And it turns out to be like this:

*
***
*****
*******
*********

What i need is the triangle to look like this:

*
* *
* *
* *
*********

Anyone can help me supply the codes for the isosceles triangle with no asterisks inside the triangle? Help would be appreciated.

The solution is in the if() statement where it prints either a * or space.

You should use the C++ headers if you are using C++ ( you were using iostream.h instead of iostream ).

And you should practice formatting your code so it is easier to read because you have cout << "\n"; tabbed out by cout << " "; which kinda looks confusing.

``````#include <iostream>
using namespace std;

int main()
{
int a, b, c = 5, d = 0;
for( a = 1; a <= c; a++ )
{
for( b = 1; b <= c*2-1; b++ )
if( (b == c+d || b == c-d) || a == c )
cout<<"*";
else
cout<<" ";
cout<<"\n";
d++;
}
return 0;
}``````