#include "molecules.h" #include "bits/stdc++.h" #define int int64_t #define vi vector<int> #define vvi vector<vi> #define pii pair<int, int> using namespace std; vector<int> find_subset(int l, int u, vi w) { vector<pii> v; for (int i = 0; i < w.size(); ++i) { v.push_back({w[i], i}); } sort (v.begin(), v.end()); int lp = 0, rp = 0, cur = w[0]; while (lp < v.size() && rp < v.size()) { if (l <= cur && cur <= u) { vi ans; for (int i = lp; i <= rp; ++i) { ans.push_back(i); } return ans; } else if (cur < l) { if (rp + 1 >= v.size()) { break; } ++rp, cur += v[rp].first; } else { if (lp + 1 > rp) { break; } cur -= v[lp].first, ++lp; } } 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
      |         ^~~~
/usr/bin/ld: /tmp/ccHxYAMS.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