molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:10:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i < w.size(); i++){
~~^~~~~~~~~~
molecules.cpp: In function 'int main()':
molecules.cpp:50:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i < v.size(); i++){
~~^~~~~~~~~~
/tmp/cco6cXSO.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccxIjxcK.o:molecules.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status