#include using namespace std; typedef signed long long ll; #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 ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) template bool chmax(T &a, const T &b) { if(a bool chmin(T &a, const T &b) { if(a>b){a=b;return 1;}return 0;} //------------------------------------------------------- template class SegTree_1 { public: vector val; V comp(V l,V r){ int i; FOR(i,8) l[i]+=r[i]; return l; } SegTree_1(){ val.resize(NV*2); }; V getval(int x,int y,int l=0,int r=NV,int k=1) { // x<=i1) entry>>=1, val[entry]=comp(val[entry*2],val[entry*2+1]); } }; SegTree_1,1<<20> st; int N; ll X[101010],Y[101010]; vector ev[1010101]; void solve() { int i,j,k,l,r,x,y; string s; cin>>N; FOR(i,N) { cin>>X[i]>>Y[i]; st.update(Y[i],{0LL,0LL,0LL,0LL,1LL,X[i],Y[i],Y[i]*X[i]}); ev[X[i]].push_back(Y[i]); } __int128 mi=1LL<<60; FOR(i,1000005) if(ev[i].size()) { auto a=st.getval(0,(1<<20)-1); ll v=a[0]*i-a[1]+a[5]-a[4]*i; if(v==0) { mi=0; break; } y=(1<<20)-1; ll sv; for(j=19;j>=0;j--) { int t=y-(1<=v/2) y=t, sv=v2; } a=st.getval(0,y+1); __int128 S=(__int128)y*a[5]-(__int128)a[4]*i*y-(__int128)a[7]+(__int128)i*a[6]; //右下 S+=(__int128)a[0]*i*y-(__int128)a[1]*y-(__int128)a[2]*i+(__int128)a[3]; // 左下 a=st.getval(y,(1<<20)-1); S+=(__int128)a[7]-(__int128)i*a[6]-(__int128)a[5]*y+(__int128)a[4]*i*y; // 右上 S+=(__int128)a[1]*y-(__int128)a[3]-(__int128)a[0]*i*y+(__int128)i*a[2]; // 左上 mi=min(mi,S); FORR(e,ev[i]) { st.update(e,{1LL,i,e,i*e,-1,-i,-e,-i*e}); } } cout<<(ll)mi<