题解 | #涂小天与他的画#

   #include<iostream>
   #include<cmath>
   using namespace std;
   int main ()
    {
    int t;
     cin>>t;
  while (t--){
    int n;
      cin>>n;
    int cx=n/2,cy=n/2;
     for (int i=0;i<n;i++)
      {
     for (int j=0;j<n;j++)
     if (abs(i-cx)+abs(j-cy)<=n/2)
       cout <<'*';
        else cout << ' ';
         cout<<endl;
           }
         }
          return 0;
        }