Compilare: main.cpp: In function 'int main()': main.cpp:38:29: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 38 | if (g[i].size() == nr_edges) | ~~~~~~~~~~~~^~~~~~~~~~~ main.cpp:55:34: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | if (frecv[j] - 1 == nr_edges - g[i].size()