Compilare: main.cpp: In function 'int main()': main.cpp:45:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<Fractie, Fractie> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(int i = 1; i < pos.size(); i++){ | ~~^~~~~~~~~~~~ main.cpp:57:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<Fractie, Fractie> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for(int i = 1; i < neg.size(); i++){ | ~~^~~~~~~~~~~~