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Cod sursa(job #532463)
#include <fstream>
using namespace std;
int main(){
ifstream in("oras.in");
ofstream out("oras.out");
int n;in>>n;
if(n%2){
int mat[200][200];
for(int i=0;i<200;i++){
for(int j=0;j<200;j++){
mat[i][j]=0;
}
}
for(int i=0;i<n;i++){
for(int j=1;j<n/2+1;j++){
mat[i][(i+j)%n]=1;
}
}
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
out<<mat[i][j];
}
out<<"\n";
}
return 0;
}else{
out<<-1;
return 0;
}
}