molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:9:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
9 | for(int i=0; i<v.size(); i++) v[i] = {w[i], i};
| ~^~~~~~~~~
molecules.cpp:12:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
12 | for(int r=0; r<v.size(); r++){
| ~^~~~~~~~~