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#include <iostream>
#include <string>
using namespace std;
int main()
{
int n,spaces,ast = 1;
cin >> n;
if(n == 1)
{
cout << "*" << endl;
return 0;
}
spaces = n-1;
while(1)
{
for(int j = spaces; j > 0; j--)
{
cout << " ";
}
for(int k = ast; k > 0; k--)
{
cout << "*";
}
cout << endl;
if(!spaces)
{
break;
}
spaces--;
ast += 2;
}
ast -= 2;
spaces++;
while(1)
{
for(int j = spaces; j > 0; j--)
{
cout << " ";
}
for(int k = ast; k > 0; k--)
{
cout << "*";
}
cout << endl;
if(ast == 1)
{
break;
}
spaces++;
ast -= 2;
}
return 0;
}
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