#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define INF LLONG_MAX
int st[400002],st2[400002];
vector<int> A;
void build(int node,int l,int r){
if(l==r){
st[node]=l;
return ;
}
int med=(l+r)/2;
build(node*2,l,med),build(node*2+1,med+1,r);
if(A[st[node*2+1]]>=A[st[node*2]])st[node]=st[node*2+1];
else st[node]=st[node*2];
}
void build2(int node,int l,int r){
if(l==r){
st2[node]=l;
return ;
}
int med=(l+r)/2;
build2(node*2,l,med),build2(node*2+1,med+1,r);
if(A[st2[node*2]]>=A[st2[node*2+1]])st2[node]=st2[node*2];
else st2[node]=st2[node*2+1];
}
int query(int node,int l,int r,int i,int j){
if(l>j||r<i)
return -1;
if(l>=i&&r<=j){
if(A[st[node]]<2)return -1;
return st[node];
}
int med=(l+r)/2;
int idx=query(node*2+1,med+1,r,i,j);
if(idx!=-1)return idx;
return query(node*2,l,med,i,j);
}
int query2(int node,int l,int r,int i,int j){
if(l>j||r<i)
return -1;
if(l>=i&&r<=j){
if(A[st2[node]]<2)return -1;
return st2[node];
}
int med=(l+r)/2;
int idx=query2(node*2,l,med,i,j);
if(idx!=-1)return idx;
return query2(node*2+1,med+1,r,i,j);
}
vector<ll> minimum_costs(vector<int> H, vector<int> L,vector<int> R) {
int n=H.size();
A=H;
build(1,0,n-1);
int Q = L.size();
vector<ll> C(Q);
for (int q = 0; q < Q; ++q) {
int lefty=query2(1,0,n-1,L[q],R[q]),righty=query(1,0,n-1,L[q],R[q]);
//cerr<<lefty<<" "<<righty<<"\n";
if(lefty==-1){
C[q]=R[q]-L[q]+1;
continue;
}
C[q]=2*(R[q]-L[q]+1);
if(righty!=R[q]){
righty++;
C[q]=min(C[q],(ll)(R[q]-righty+1+2*righty));
}
if(lefty!=L[q]){
lefty--;
C[q]=min(C[q],(ll)(lefty+1+2*(R[q]-lefty)));
}
}
return C;
}
