#include using namespace std; #define F first #define S second #define R cin>> #define ll long long #define ln cout<<'\n' #define in(a) insert(a) #define pb(a) push_back(a) #define pd(a) printf("%.10f\n",a) #define mem(a) memset(a,0,sizeof(a)) #define all(c) (c).begin(),(c).end() #define iter(c) __typeof((c).begin()) #define rrep(i,n) for(ll i=(ll)(n)-1;i>=0;i--) #define REP(i,m,n) for(ll i=(ll)(m);i<(ll)(n);i++) #define rep(i,n) REP(i,0,n) #define tr(it,c) for(iter(c) it=(c).begin();it!=(c).end();it++) ll check(ll n,ll m,ll x,ll y){return x>=0&&x=0&&yvoid pr(const A &a,const B&...b){cout<void PR(A a,ll n){rep(i,n)cout<<(i?" ":"")< P; ll n,a[222222],b[222222]; double calc(double m) { double s=0; rep(i,n) s+=b[i]*abs(m-a[i]); return s; } void Main() { cin >> n; rep(i,n) cin >> a[i]; rep(i,n) cin >> b[i]; ll Mi=MAX,Ma=-MAX; rep(i,n) { Mi=min(Mi,a[i]); Ma=max(Ma,a[i]); } double l=Mi,r=Ma; rep(t,300) { double m1=(l*2+r)/3,m2=(l+r*2)/3; double d1=calc(m1),d2=calc(m2); if(d1