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Cod sursa(job #487241)
#include<fstream>
using namespace std;
const char iname[]="oras.in";
const char oname[]="oras.out";
const int maxn=220;
ifstream f(iname);
ofstream g(oname);
int n,i,j;
int a[maxn][maxn];
int main()
{
f>>n;
if(n==4)
{
g<<"-1\n";
return 0;
}
if(n&1)
{
a[1][2]=a[2][3]=a[3][1]=1;
for(i=5;i<=n;i+=2)
{
for(j=1;j<i-1;++j)
a[j][i-1]=1,a[i][j]=1;
a[i-1][i]=1;
}
for(i=1;i<=n;++i)
{
for(j=1;j<=n;++j)
g<<a[i][j];
g<<"\n";
}
return 0;
}/*
a[1][2]=a[1][4]=a[2][3]=a[2][5]=a[3][1]=a[3][5]=a[3][6]=1;
a[4][3]=a[4][6]=a[5][1]=a[5][4]=a[6][1]=a[6][2]=a[6][5]=1;
for(i=8;i<=n;i+=2)
{
for(j=1;j<i-1;++j)
a[j][i-1]=1,a[i][j]=1;
a[i-1][i]=1;
}
for(i=1;i<=n;++i)
{
for(j=1;j<=n;++j)
g<<a[i][j];
g<<"\n";
}*/
return 0;
}