#include<bits/stdc++.h> using namespace std; int main() { int n,i,j; int a[15][15]; cin>>n; for(i=1;i<=n;i++) { for(j=1;j<=n;j++) { a[i][j]=1; } } a[n/2+1][n/2+1]=0; for(i=1;i<=n;i++) { for(j=1;j<=n;j++) { if(i+j==n/2+2) a[i][j]=0; } } for(i=n/2+1;i<=n;i++) { for(j=1;j<=n/2+1;j++) { if(i-j==n/2) a[i][j]=0; } } for(i=1;i<=n/2+1;i++) { for(j=n/2+1;j<=n;j++) { if(j-i==n/2) a[i][j]=0; } } for(i=n/2+1;i<=n;i++) { for(j=n/2+1;j<=n;j++) { if(j+i==n/2+n+1) a[i][j]=0; } } for(i=1;i<=n;i++) { for(j=1;j<=n;j++) { cout<<setw(3)<<a[i][j]; } cout<<endl; } return 0; } /************************************************************** Problem: 1327 User: chenzhuo1 Language: C++ Result: Accepted Time:11 ms Memory:2072 kb ****************************************************************/