#include "molecules.h" #include <bits/stdc++.h> #pragma once // 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] = pref[i - 1] + v[i].first; for (int i = 0; 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; }

molecules.cpp:3:9: warning: #pragma once in main file
    3 | #pragma once
      |         ^~~~
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/ccRv0wM0.o: in function `main':
grader.cpp:(.text.startup+0x165): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status