Now I can got WA 1,2,3,5,6,7 and TLE14

This is my code wich got WA6

# include <iostream>
# include <algorithm>
# include <cmath>
using namespace std;

typedef long double int64;
#define sq(x) x*x

int64 myx0=2000000001,myy0=2000000001;

struct ket
{
    int64 x;
    int64 y;
    int hamar;
} a[10010];

bool operator <(ket e, ket f)
{
    double de=sqrt(sq(e.x-myx0)+sq(e.y-myy0));
    double df=sqrt(sq(f.x-myx0)+sq(f.y-myy0));
    return e.x/de>f.x/df;
}


int main ()
{
    int n,i;
    int ans1,ans2;
    cin>>n;
    for(i=0;i<n;i++)
    {
        cin>>a[i].x>>a[i].y;
        a[i].hamar=i+1;
        if(a[i].y<myy0)
        {
            myx0=a[i].x;
            myy0=a[i].y;
            ans1=a[i].hamar;
        }
        else if(fabs(a[i].y-myy0)<0.00001 && a[i].x<myx0)
        {
            myx0=a[i].x;
            ans1=a[i].hamar;
        }
    }
    swap(a[0],a[ans1-1]);
    sort(a+1,a+n);
    ans2=a[n/2].hamar;
    cout<<ans1<<" "<<ans2;
    return 0;
}

Edited by author 30.12.2008 21:48