#include "molecules.h" #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] = 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: In function 'std::vector<long long int> find_subset(long long int, long long int, std::vector<long long int>)':
molecules.cpp:27:74: error: expression cannot be used as a function
   27 |     for (int i = 0; i < w.size(); i++) pref[i] = pref[i - 1] + v[i].first();
      |                                                                ~~~~~~~~~~^~
molecules.cpp:43:35: error: expression cannot be used as a function
   43 |                 ans.pb(v[j].second());
      |                        ~~~~~~~~~~~^~
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
      |         ^~~~