Compilare: main.cpp: In function 'int main()': main.cpp:30:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<double, double> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i=1;i<poz.size();i++){ | ~^~~~~~~~~~~ main.cpp:39:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<double, double> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int i=1;i<neg.size();i++){ | ~^~~~~~~~~~~