#include<bits/stdc++.h> using namespace std; int main(){ int i,n,t,j,a[9][9]={1}; cin>>n; for(i=0;i<n;i++){ for(j=0;j<n;j++){ a[i][j]=1; } } for(i=0;i<n;i++){ if(i<n/2){ a[i][n/2-i]=0; a[i][n/2+i]=0; } if(i>n/2){ t=n-i-1; a[i][n/2-t]=0; a[i][n/2+t]=0; } else{ a[n/2][0]=0; a[n/2][n/2]=0; a[n/2][n-1]=0; } } for(i=0;i<n;i++){ for(j=0;j<n;j++){ cout<<setw(3)<<a[i][j]; } cout<<endl; } return 0; } /************************************************************** Problem: 1327 User: zzz Language: C++ Result: Accepted Time:10 ms Memory:2072 kb ****************************************************************/