//#pragma GCC optimize("O3") #include "molecules.h" #include <bits/stdc++.h> #define ll long long #define str string #define pb push_back #define pf push_front #define in insert #define all(v) v.begin(),v.end() #define fastIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); const int sz=1000000,INF=1000000000; using namespace std; vector<ll>find_subset(ll left,ll right,vector<ll>nums) { vector<ll>prefs(nums.size()+1,0),ans; for(int i=0;i<nums.size();i++) { prefs[i+1]=prefs[i]+nums[i]; } for(int i=0;i<nums.size();i++) { for(int j=i+1;j<nums.size();j++) { if(prefs[j]-prefs[i-1]>=left && prefs[j]-prefs[i-1]<=right) { for(int k=i;k<=j;k++) { ans.pb(nums[k]); } break; } } if(ans.size()!=0) { break; } } return ans; }

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/ccHaguaj.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