molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:8:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
8 | for(;r<w.size();r++)v.push_back({w[r],r});
| ~^~~~~~~~~
molecules.cpp:10:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
10 | for(r=0;r<w.size();r++){
| ~^~~~~~~~~