#include <bits/stdc++.h> #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); } using namespace std; vector<int> v, A; vector<int> ans; long long L, R; bool cmp(const int &x, const int &y) { return A[x] < A[y]; } vector<int> find_subset(int l, int u, vector<int> w) { A = w; for(int i = 0; i < (int)w.size(); i++) v.push_back(i); sort(v.begin(), v.end(), cmp); for(int i = 0; i < (int)w.size(); i++) { L += w[v[i]], R += w[v[(int)w.size() - i - 1]]; if(R >= l && L <= u) { int j = i; while(l > L) L = L - w[v[j - i]] + w[v[j + 1]], j++; for(int k = j - i; k <= j; k++) ans.push_back(v[k]); return ans; } } 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
      |         ^~~~