molecules.cpp: In function 'std::vector<long long int> find_subset(long long int, long long int, std::vector<long long int>)':
molecules.cpp:19:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
19 | for(int i=0;i<w.size();i++){
| ~^~~~~~~~~
molecules.cpp:26:10: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
26 | while(l1<w.size()&&r1<w.size()){
| ~~^~~~~~~~~
molecules.cpp:26:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
26 | while(l1<w.size()&&r1<w.size()){
| ~~^~~~~~~~~
/usr/bin/ld: /tmp/cccYIL59.o: in function `main':
grader.cpp:(.text.startup+0x18d): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status