molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
15 | for (int i = 0; i < w.size(); i++) {
| ~~^~~~~~~~~~
molecules.cpp:22:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
22 | while (i < a.size() && j < a.size()) {
| ~~^~~~~~~~~~
molecules.cpp:22:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
22 | while (i < a.size() && j < a.size()) {
| ~~^~~~~~~~~~
molecules.cpp:29:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
29 | if (sum <= u && j < a.size() - 1) {
| ~~^~~~~~~~~~~~~~
molecules.cpp:30:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
30 | if (j == a.size() - 1) {
| ~~^~~~~~~~~~~~~~~