Compilare: user.cpp: In function ‘double DivImp(int, int, std::vector<punct>)’: user.cpp:53:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<Y.size(); i++) ^ user.cpp:65:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<=Y.size(); i++) ^ user.cpp:70:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<LY.size()-1; i++) ^ user.cpp:71:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=i+1; j<LY.size(); j++) ^