Pagini recente » Cod sursa (job #1183262) | Cod sursa (job #1428303) | Cod sursa (job #1222873) | Cod sursa (job #2560915) | Cod sursa (job #2031627)
# include <fstream>
# include <cmath>
# include <iomanip>
# include <algorithm>
# define DIM 50010
# define f first
# define s second
using namespace std;
ifstream fin("adapost2.in");
ofstream fout("adapost2.out");
pair<double,double> v[DIM];
pair<double,int> s[5];
double x,y,xx,yy,xm,ym;
int n,i,j;
double dist(double a,double b,double c,double d){
return sqrt((a-c)*(a-c)+(b-d)*(b-d));
}
int main () {
fin>>n;
for(i=1;i<=n;i++)
fin>>v[i].f>>v[i].s;
x=0;
y=0;
xx=1024;
yy=1024;
for(j=1;j<=30;j++){
xm=(x+xx)/2;
ym=(y+yy)/2;
for(i=1;i<=4;i++){
s[i].f=0;
s[i].s=i;
}
for(i=1;i<=n;i++){
if(v[i].f<=xm&&v[i].s<=ym)
s[1].f+=dist(v[i].f,v[i].s,xm,ym);
if(v[i].f>xm&&v[i].s<=ym)
s[2].f+=dist(v[i].f,v[i].s,xm,ym);
if(v[i].f<=xm&&v[i].s>ym)
s[3].f+=dist(v[i].f,v[i].s,xm,ym);
if(v[i].f>xm&&v[i].s>ym)
s[4].f+=dist(v[i].f,v[i].s,xm,ym);
}
sort(s+1,s+5);
if(s[4].s==1){
xx=xm;
yy=ym;
}
if(s[4].s==2){
x=xm;
yy=ym;
}
if(s[4].s==3){
xx=xm;
y=ym;
}
if(s[4].s==4){
x=xm;
y=ym;
}
}
xm=(x+xx)/2;
ym=(y+yy)/2;
fout<<setprecision(5)<<fixed<<xm<<" "<<ym<<"\n";
return 0;
}