molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:14:17: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
14 | for ( i = 1; i < w.size(); i ++) {
| ~~^~~~~~~~~~
molecules.cpp:18:16: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
18 | for (i = 0; i < w.size(); i ++) {
| ~~^~~~~~~~~~
molecules.cpp:7:13: warning: variable 's' set but not used [-Wunused-but-set-variable]
7 | ll p, sum, s, j, r, i;
| ^