molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:9:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
9 | for(int i=0;i<v.size();i++)
| ~^~~~~~~~~
molecules.cpp:12:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
12 | for(int i=0;i<v.size();i++)
| ~^~~~~~~~~
molecules.cpp:13:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
13 | for(int j=i+1;j<v.size();j++)
| ~^~~~~~~~~
molecules.cpp:16:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
16 | for(int i=0;i<v.size();i++)
| ~^~~~~~~~~
molecules.cpp:17:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
17 | for(int j=i+1;j<v.size();j++)
| ~^~~~~~~~~
molecules.cpp:18:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
18 | for(int k=j+1;k<v.size();k++)
| ~^~~~~~~~~
molecules.cpp:8:9: warning: unused variable 'n' [-Wunused-variable]
8 | int n=v.size();
| ^