#include using namespace std; template struct lazy_segment_tree{ int n; vector dat,lazy; T de,le; T f(T a,T b){ return a+b; } void g(T& a,T b){ a = b; } void h(T& a,T b){ a = b; } lazy_segment_tree(){} lazy_segment_tree(int sz){ n = 1; while(n<=sz)n<<=1; de = 0; le = 0; dat.resize(2*n-1,de); lazy.resize(2*n-1,le); } lazy_segment_tree(vector const& v){ int sz = v.size(); n = 1; while(n<=sz)n<<=1; de = 0; le = 0; dat.resize(2*n-1,de); lazy.resize(2*n-1,le); for(int i=0;i=0;--i){ dat[i] = f(dat[i*2+1],dat[i*2+2]); } } void eval(int k,int l,int r){ if(lazy[k]!=le){ g(dat[k],lazy[k]); if(r-l>1){ h(lazy[2*k+1],lazy[k]); h(lazy[2*k+2],lazy[k]); } lazy[k] = le; } } void update(int a,int b,T x,int k=0,int l=0,int r=-1){ if(r<0)r=n; eval(k,l,r); if(b<=l||r<=a)return; if(a<=l&&r<=b){ h(lazy[k],x); eval(k,l,r); }else{ update(a,b,x,2*k+1,l,(r+l)/2); update(a,b,x,2*k+2,(r+l)/2,r); dat[k] = f(dat[2*k+1],dat[2*k+2]); } } T query(int a,int b,int k=0,int l=0,int r=-1){ if(r<0)r=n; if(b<=l||r<=a)return de; eval(k,l,r); if(a<=l&&r<=b)return dat[k]; T vl = query(a,b,2*k+1,l,(r+l)/2); T vr = query(a,b,2*k+2,(r+l)/2,r); return f(vl,vr); } T operator[](int k){ return query(k,k+1); } }; void yukico318(){ int n;cin>>n; vector a(n); for(auto& ai:a)cin>>ai; struct section{ int l,r; section():r(-1),l((1LL<<28)){} void operator()(int k){ if(l>k)l=k; if(r mp; for(int i=0;i seg(n); for(auto const& sec:mp){ seg.update(sec.second.l,sec.second.r+1,sec.first); } for(int i=0;i