Compilare: main.cpp: In member function 'void Graph::add_edge(const int&, const int&, const int&)': main.cpp:43:30: warning: narrowing conversion of '(((Graph*)this)->Graph::adj + ((sizetype)(((long unsigned int)j) * 24)))->std::vector<Edge>::size()' from 'std::vector<Edge>::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing] 43 | Edge a{ j, 0, c, adj[j].size() }; | ~~~~~~~~~~~^~ main.cpp:44:30: warning: narrowing conversion of '(((Graph*)this)->Graph::adj + ((sizetype)(((long unsigned int)i) * 24)))->std::vector<Edge>::size()' from 'std::vector<Edge>::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing] 44 | Edge b{ i, 0, 0, adj[i].size() }; | ~~~~~~~~~~~^~ main.cpp: In member function 'int Graph::send_flow(const int&, const int&, const int&, int*)': main.cpp:84:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 84 | for (; placed[current_node] < adj[current_node].size(); ++placed[current_node]) | ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~