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Cod sursa(job #507657)
#include <cstdio>
FILE *in,*out;
int a[205][205];
int main()
{
int i,j,n,q;
in=fopen("oras.in","r");
out=fopen("oras.out","w");
fscanf(in,"%d",&n);
//setez init
for (i=1;i<=n;i++)
for (j=i+1;j<=n;j++)
a[i][j]=1;
q=1;
/*if (n%2)
q=1;
else q=2;*/
// if (n%2)
// {
if (n==4)
fprintf(out,"-1\n");
for (i=2;i<=n;i++)
{
for (j=i-q;j>=1;j-=2)
{
a[i][j]=1;
a[j][i]=0;
}
}
if (n%2==0)
{
a[1][2]=1;
a[2][1]=0;
}
for (i=1;i<=n;i++)
{
for (j=1;j<=n;j++)
fprintf(out,"%c",'0'+a[i][j]);
fprintf(out,"\n");
}
//}
//else
// fprintf(out,"-1\n");
fclose(in);
fclose(out);
return 0;
}