1035:放大的X

#include<iostream>
using namespace std;
int main()
{
    int t,j,k;
    cin>>t;
     for(int i=0;i<t;i++)
     {
         int n;
         cin>>n;
    for(j=1;j<=n/2+1;j++)
    {
        for(k=1;k<=n;k++)
        {
            if(j==k||k==n-j+1)
            cout<<"X";
            if(j!=k&&k<n-j+1)
            cout<<" ";
        }
        cout<<endl;
    }
    for(j=n/2+2;j<=n;j++)
    {
        for( k=1;k<=n;k++)
        {
            if(j==k||k==n-j+1)
            cout<<"X";
            if(j!=k&&k<j-1)
            cout<<" ";
        }
        cout<<endl;
    }
    cout<<endl;

     }
    return 0;

}