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#include <bits/stdc++.h>
const long double eps=1e-5;
const int oo=1e9;
const int N=410;
using namespace std;
ifstream f("adapost.in");
ofstream g("adapost.out");
int n,i,j,mi,lo,hi,poz[N][N],cap[2*N][2*N];
pair<long double,long double> sold[N],home[N];
vector<pair<long double,pair<int,int> > > u;
long double flow,cost[2*N][2*N];
vector<int> v[2*N],fren[N];
bitset<N> viz;
int S[N],D[N];
bool grow(int poz)
{
if(viz[poz])return 0;
viz[poz]=1;
for(auto it:fren[poz])
if(!S[it])
{
S[it]=poz;
D[poz]=it;
return 1;
}
for(auto it:fren[poz])
if(grow(S[it]))
{
S[it]=poz;
D[poz]=it;
return 1;
}
return 0;
}
bool bipart(int mi)
{
for(i=1;i<=n;i++)
{
fren[i].resize(0);
for(j=1;j<=n;j++)
if(poz[i][j]<=mi)
fren[i].push_back(j);
}
int meci=0;
for(bool ok=1;ok;)
{
ok=0;viz.reset();
for(i=1;i<=n;i++)
if((!D[i])&&grow(i))
{
ok=1;
meci++;
}
}
return (meci==n);
}
bool dij()
{
queue<int> Q;
int tata[2*N];long double dist[2*N];
bitset<2*N> in;in.reset();
for(i=0;i<=2*n+1;i++)
dist[i]=tata[i]=oo;
dist[0]=tata[0]=0;
Q.push(0);in[0]=1;
while(Q.size())
{
int x=Q.front();
Q.pop();in[x]=0;
for(auto it:v[x])
if(cap[x][it]&&(dist[it]>dist[x]+cost[x][it]))
{
dist[it]=dist[x]+cost[x][it];
if(!in[it])
Q.push(it);
in[it]=1;
tata[it]=x;
}
}
if(dist[2*n+1]==oo)
return 0;
int flux=oo;
for(int nod=2*n+1;nod;nod=tata[nod])
flux=min(flux,cap[tata[nod]][nod]);
for(int nod=2*n+1;nod;nod=tata[nod])
{
cap[tata[nod]][nod]-=flux;
cap[nod][tata[nod]]+=flux;
}
flow+=dist[2*n+1]*(long double)flux;
return 1;
}
int main()
{
f>>n;
for(i=1;i<=n;i++)
f>>sold[i].first>>sold[i].second;
for(i=1;i<=n;i++)
f>>home[i].first>>home[i].second;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{
cost[i][j+n]=sqrt((sold[i].first-home[j].first)*(sold[i].first-home[j].first)+
(sold[i].second-home[j].second)*(sold[i].second-home[j].second));
cost[j+n][i]=-cost[i][j+n];
u.push_back({cost[i][j+n],{i,j}});
v[i].push_back(j+n);
v[j+n].push_back(i);
}
sort(u.begin(),u.end());
for(i=1;i<=n*n;i++)
poz[u[i].second.first][u[i].second.second]=i;
lo=1,hi=n*n;
while(lo<hi)
{
mi=(lo+hi)/2;
if(bipart(mi))
hi=mi;
else
lo=mi+1;
}
g<<u[lo].first<<' ';
for(i=1;i<=lo;i++)
cap[u[i].second.first][u[i].second.second+n]=N;
for(i=1;i<=n;i++)
{
cap[0][i]=1;
v[0].push_back(i);
}
for(i=n+1;i<=2*n;i++)
{
cap[i][2*n+1]=1;
v[i].push_back(2*n+1);
}
for(;dij(););
g<<flow;
return 0;
}