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Cod sursa(job #508764)
#include <stdio.h>
int n;
char v[205][205];
void add (int i, char s[])
{
int j;
for (j = 0; s[j]; j ++)
v[i][j] = s[j];
}
int main ()
{
freopen ("oras.in", "r", stdin);
freopen ("oras.out", "w", stdout);
scanf ("%d", &n);
if (n == 4)
{
printf ("-1");
return 0;
}
int i, j, nr = 0;
for (i = 1; i <= n; i ++)
for (j = 1; j <= n; j ++)
v[i][j] = '0';
if (n % 2 == 0)
{
add (1, "0010001");
add (2, "0001010");
add (3, "0100101");
add (4, "0110010");
add (5, "0101001");
add (6, "0010100");
nr = 3;
}
else
v[1][2] = v[2][3] = v[3][1] = '1';
for (i = 4 + nr; i <= n; i += 2)
{
v[i][i + 1] = '1';
for (j = 1; j < i; j ++)
v[j][i] = v[i + 1][j] = '1';
}
for (i = 1; i <= n; i ++)
puts (v[i] + 1);
return 0;
}