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Cod sursa(job #333133)
#include <stdio.h>
using namespace std;
#define maxn 210
long n, i, b, j, k, ok, r[maxn][maxn];
int main()
{
freopen("oras.in", "r", stdin);
freopen("oras.out", "w", stdout);
scanf("%d", &n);
ok=1;
for(i=1; i<n/2+1; i++)
{
for(j=0; j<n; j++)
{
b=(i+j)%n;
if(r[b][j]==0 && r[j][b]==0)
{
r[j][b]=1;
}
}
}
if(n<3) printf("%d\n", -1);
for(i=0; i<n; i++)
{
for(j=0; j<n; j++)
{
printf("%d", r[i][j]);
}
printf("\n");
}
return 0;
}