Cod sursa(job #989676)

Utilizator monica11Szekely Monica monica11 Data 26 august 2013 11:46:31
Problema Oras Scor 55
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.85 kb
#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;
}