#include<bits/stdc++.h> using namespace std; int a[200][200]; int n,c=1; int main() { cin>>n; for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){ a[i][j]=1; } } for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){ if(i+j==n/2+2){ a[i][j]=0; a[i][n-j+1]=0; a[n-i+1][n-j+1]=0; } else if(i+j==n+n/2+1){ a[i][n-j+1]=0; a[n-i+1][j]=0; } else{ a[i][j]=1; } } } a[n/2+1][n/2+1]=0; for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){ cout<<setw(3)<<a[i][j]; } cout<<endl; } return 0; } /************************************************************** Problem: 1327 User: xuanhua Language: C++ Result: Accepted Time:9 ms Memory:2228 kb ****************************************************************/