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Cod sursa(job #885434)
#include<fstream>
using namespace std;
int i,j,ok=0,n,a[201][201],p;
int main()
{
ifstream f("oras.in");
ofstream g("oras.out");
f>>n;
if(n==4)
{
g<<-1<<"\n";
return 0;
}
else
{
if(n%2)
{
ok=1;
for(i=1;i<=n;++i)
{
for(j=i+1;j<=n;++j)
a[i][j]=1-a[i][j-1],a[j][i]=1-a[i][j];
}
}
else
{
for(i=2;i<=n;i+=2)
{
a[i-1][i]=1;
for(j=1;j<i;++j)
a[j][i-1]=1,a[i][j]=1;
}
}
for(i=1;i<=n;++i)
{
for(j=1;j<=n;++j)
g<<a[i][j];
g<<"\n";
}
return 0;
}
}