#include"holiday.h"
#include <iostream>
#include <iomanip>
#include <string>
#include <math.h>
#include <algorithm>
#include <cstring>
#include <numeric>
#include <vector>
#include <bitset>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <stack>
#include <unordered_map>
#include <unordered_set>
using namespace std;
#define dbg(x) cerr<<#x<<": "<<x<<"\n";
/*
MC lover
*/
struct fentree{
vector<long long>ft;
int n;
fentree (int n):n(n), ft(n+1){}
long long querie(int posi){
long long res=0;
while(posi>0){
res+=ft[posi];
posi-=posi&-posi;
}
return res;
}
void add(int posi, long long val){
while(posi<=n){
ft[posi]+=val;
posi+=posi&-posi;
}
}
int bs(int k){
int aux=querie(n);
if(aux<=k) return 1;
int res=0;
int l=1, r=n;
while(l<=r){
int mid=(l+r)>>1;
if(aux-querie(mid-1)>=k){
res=mid;
l=mid+1;
}else r=mid-1;
}
return res;
}
};
long long int findMaxAttraction(int n, int start, int d, int attraction[]) {
long long ans=0;
vector<long long> v(n);
set<long long>cast;
map<long long, int>val;
for(int i=0 ; i<n ; i++){
v[i]=attraction[i];
cast.insert(v[i]);
}
int posi=1;
for(long long x:cast) val[x]=posi++;
//left
{
fentree freq(n), pref(n);
for(int i=start ; i<n ; i++){
int left=d-(i-start);
if(left<=0) break;
pref.add(val[v[i]], v[i]);
freq.add(val[v[i]], 1);
int posi=freq.bs(left);
int now=freq.querie(n)-freq.querie(posi-1);
long long curr=pref.querie(n)-pref.querie(posi-1);
if(now>left){
now-=left;
curr-=now*v[posi];
}
// cout<<left<<" "<<curr<<"\n";
ans=max(ans, curr);
}
}
return ans;
}
