#include "bits/stdc++.h" using namespace std; #include "molecules.h" typedef long long ll; vector<int> find_subset(int l,int u,vector<int> w){ int n=w.size(); vector<pair<int,int>> X; for(int i=0;i<n;i++)X.push_back({w[i],i}); sort(X.begin(), X.end()); int a[n+1],idx[n+1]; for(int i=0;i<n;i++){ a[i+1]=X[i].first; idx[i+1]=X[i].second; } ll pref[n+2]={},suf[n+2]={}; for(int i=1;i<=n;i++){ pref[i]=pref[i-1]; pref[i]+=a[i]; } for(int i=n;i>=1;i--){ suf[i]=suf[i+1]; suf[i]+=a[i]; } suf[0]=u; suf[0]<<=1; int R=0; for(int L=0;L<=n;L++){ while(R<=n && (ll)(pref[L]+suf[R])>u)R++; ll s=pref[L]+suf[R]; if(s>=l && s<=u && R>L){ vector<int> ans; for(int i=1;i<=L;i++)ans.push_back(idx[i]); for(int i=R;i<=n;i++)ans.push_back(idx[i]); return ans; } } return {}; }

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~