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