Pagini recente » Cod sursa (job #360736) | Cod sursa (job #2464721) | Cod sursa (job #2687176) | Cod sursa (job #2793515) | Cod sursa (job #989676)
Cod sursa(job #989676)
#include<fstream>
using namespace std;
ifstream f("oras.in");
ofstream g("oras.out");
int n,i,j,a[201][201],ok=0,p;
int main()
{
f>>n;
if(n==4)
g<<-1<<"\n";
if(n%2)
{
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=1;i<=n;i++)
{
for(j=i+1;j<=n;j+=2)
a[i][j]=1;
for(j=i+2;j<=n;j+=2)
a[j][i]=1;
}
for(i=1;i<=n;++i)
{
for(j=1;j<=n;j++)
{
if(a[i][j]==0)
ok=1;
}
}
if(ok==1)
{
for(i=1;i<=n;++i)
{
for(j=1;j<=n;j++)
g<<a[i][j];
g<<"\n";
}
}
if(ok==0)
g<<-1;
return 0;
}