#include using namespace std; #define modulo 1000000007 #define mod(mod_x) ((((long long)mod_x+modulo))%modulo) #define Inf 10000000 template struct segtree{ F func; vector v; int n; T init_value; segtree(int sz,F f,T iv):func(f){ init_value = iv; n=1; while(true){ if(n>=sz)break; n*=2; } v.resize(2*n,init_value); for(int i=n-1;i>=0;i--){ v[i]=func(v[i<<1],v[(i<<1)+1]); } } segtree(vector &x,F f,T iv):func(f){ init_value = iv; n=1; while(true){ if(n>=x.size())break; n*=2; } v.resize(2*n,init_value); for(int i=0;i=0;i--){ v[i]=func(v[i<<1],v[(i<<1)+1]); } } void update(int x,T val){ x+=n; v[x]=val; while(x>0){ x>>=1; v[x]=func(v[x<<1],v[(x<<1)+1]); } } T query(int l,int r){ if(l>=r)return init_value; l+=n; r+=n; T res1 = init_value; T res2 = init_value; while(true){ if(l&1){ res1=func(res1,v[l++]); } if(r&1){ res2=func(v[--r],res2); } if(l>=r)break; l>>=1;r>>=1; } return func(res1,res2); } void show(){ int n = 1; for(int i=1;i>N>>A>>B; vector x(N); for(int i=0;i>x[i]; vector ans(N); auto f = [](pair a,pair b){ return min(a,b); }; vector> P(N); for(int i=0;i,decltype(f)> seg(P,f,{1,0}); for(int i=0;i inds; inds.push_back(i); queue Q; Q.push(i); while(Q.size()!=0){ int u = Q.front(); Q.pop(); int l = distance(x.begin(),lower_bound(x.begin(),x.end(),x[u]+A)); int r = distance(x.begin(),lower_bound(x.begin(),x.end(),x[u]+B+1)); //cout< p = seg.query(l,r); if(p.first==1)break; seg.update(p.second,make_pair(1,p.second)); Q.push(p.second); inds.push_back(p.second); } l = distance(x.begin(),lower_bound(x.begin(),x.end(),x[u]-B)); r = distance(x.begin(),lower_bound(x.begin(),x.end(),x[u]-A+1)); // cout< p = seg.query(l,r); if(p.first==1)break; seg.update(p.second,make_pair(1,p.second)); Q.push(p.second); inds.push_back(p.second); } } for(int j=0;j