#include "molecules.h"
#include <bits/stdc++.h>
#define pb push_back
#define ff first
#define ss second
using namespace std;
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
int n = w.size();
vector<pair<int,int>> v(n);
for(int i = 0; i < n; i++){
cin >> v[i].ff;
v[i].ss = i;
}
sort(v.begin(), v.end());
int cur = v[0].ff;
int ptr = 0;
if(cur >= l && cur <= u){
vector<int> ret;
ret.pb(v[0].ss);
return ret;
}
for(int i = 1; i < n; i++){
cur += v[i].ff;
if(cur >= l && cur <= u){
vector<int> ret;
for(int j = ptr; j <= i; j++){
ret.pb(v[j].ss);
}
return ret;
}
while(cur > u && ptr <= i){
cur -= v[ptr].ff;
ptr++;
}
if(cur >= l && cur <= u){
vector<int> ret;
for(int j = ptr; j <= i; j++){
ret.pb(v[j].ss);
}
return ret;
}
}
return std::vector<int>(0);
}
