#include using namespace std; typedef signed long long ll; #undef _P #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define FORR2(x,y,arr) for(auto& [x,y]:arr) #define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) //------------------------------------------------------- int N; ll A[202020],B[202020],C[202020]; ll hoge(ll v) { ll ret=0; int i; FOR(i,N) ret+=B[i]*abs(v-A[i]); return ret; } void solve() { int i,j,k,l,r,x,y; string s; cin>>N; vector V; FOR(i,N) cin>>A[i], V.push_back(A[i]); FOR(i,N) cin>>B[i]; sort(ALL(V)); V.erase(unique(ALL(V)),V.end()); int L=0,R=V.size()-1; while(R-L>=3) { int m1=(L*2+R)/3; int m2=(R*2+L)/3; ll v1=hoge(V[m1]); ll v2=hoge(V[m2]); if(v1<=v2) R=m2; if(v2<=v1) L=m1; } int mi=V[L]; ll ret=1LL<<61; for(i=L;i<=R;i++) { ll v=hoge(V[i]); if(v