Compilare: main.cpp: In function 'int main()': main.cpp:59:22: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<Edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | if(ptr[node] < adj[node].size()) { main.cpp:73:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 73 | if(ans.size() != m + 1) { | ~~~~~~~~~~~^~~~~~~~ main.cpp:76:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for(int i = 0; i < ans.size() - 1; i++) { | ~~^~~~~~~~~~~~~~~~