#include <bits/stdc++.h> // solved by bekagg //#define int long long #define ent '\n' #define pb push_back #define all(x) x.begin(),x.end() #define PRaim_bek_abi ios_base::sync_with_stdio(0);cin.tie(0); using namespace std; const int N = 2e5+5; const int MOD = 1e9+7; int pref[N]; vector<int> find_subset(int l, int u, vector<int> w){ vector<pair<int , int> > v; vector<int>ans; for (int i = 0; i < w.size(); i++){ v.pb({w[i] , i}); } sort(all(v)); for (int i = 0; i < w.size(); i++) pref[i + 1] = pref[i] + v[i].first; for (int i = 1; i <= w.size(); i++){ int l = i , r = w.size() , p = -1; while(l <= r){ int m = (l + r) / 2; if (pref[m] - pref[i - 1] >= l){ p = m; r = m - 1; } else l = m + 1; } if (p != -1 and pref[p] - pref[i - 1] <= u){ for (int j = i; j <= p; j++){ ans.pb(v[j].second); } break; } } return ans; } signed main(){ }

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
      |         ^~~~
/usr/bin/ld: /tmp/ccRaCM2S.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccwsbQP4.o:molecules.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status