Compilare: main.cpp: In function 'int main()': main.cpp:38:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int i=0; i<Gr/gr && i<G[gr].size(); i++) | ~^~~~~~~~~~~~~ main.cpp:46:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<obiect>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for(int i=0; i<v.size(); i++) | ~^~~~~~~~~