how to do this ?

[Petr_Kropotkin]

Where
I tried a third loop it printed it wrong.
Like this:

for(t=1;t<12;t++)
        {
        for(j=1;j<=t;++j)
         cout<< " ";
             for(n=12;n>t;--n)
                 cout << "*";
                 cout <<endl;
             }
 
           cout<<endl;

for(t=1;t<12;t++)
        {
        for(j=1;j<=t;++j)
         cout<< " ";
             for(n=12;n>t;--n)
                 cout << "*";
                 cout <<endl;
             }
 
           cout<<endl;

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