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Cod sursa(job #157961)
#include<stdio.h>
#define Nm 256
char A[Nm][Nm];
int n;
void read()
{
freopen("oras.in","r",stdin);
scanf("%d",&n);
}
void solve()
{
int i,j;
if(n==4)
return;
for(i=0;i<n;++i)
for(j=0;j<n;++j)
A[i][j]='0';
A[0][1]=A[1][2]=A[2][0]='1';
if(n&1)
j=3;
else
{
A[3][4]=A[4][5]=A[5][3]='1';
A[0][3]=A[1][5]=A[2][4]='1';
A[3][1]=A[4][0]=A[5][2]='1';
A[0][5]=A[1][4]=A[2][3]='1';
j=6;
}
for(;j<n;j+=2)
{
for(i=0;i<j;++i)
A[i][j]=A[j+1][i]='1';
A[j][j+1]='1';
}
}
void write()
{
int i;
freopen("oras.out","w",stdout);
if(n==4)
{
printf("-1\n");
return;
}
for(i=0;i<n;++i)
printf("%s\n",A[i]);
}
int main()
{
read();
solve();
write();
return 0;
}