أهلًا بك،
يمكن أن يُكتب البرنامج باستخدام for loop متداخل (nested for loop) كالتالي
#include<iostream.h>
#include<conio.h>
void main()
{
int n, c, k, space = 1;
clrscr();
cout<<"\n\nEnter number of rows: ";
cin>>n;
space = n - 1;
for (k = 1; k<=n; k++)
{
for (c = 1; c<=space; c++)
cout<<" ";
space--;
for (c = 1; c<= 2*k-1; c++)
cout<<"*";
cout<<"\n";
}
space = 1;
for (k = 1; k<= n - 1; k++)
{
for (c = 1; c<= space; c++)
cout<<" ";
space++;
for (c = 1 ; c<= 2*(n-k)-1; c++)
cout<<"*";
cout<<"\n";
}
getch();
}
بالتوفيق