Compilare: main.cpp: In member function 'bool Graph::havel_hakimi()': main.cpp:583:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 583 | if (first_element > degrees.size()) | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> Graph::euler_cycle()': main.cpp:859:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 859 | for (int i = 0; i < adj_list_indexed.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'int Graph::hamilton_cycle_min_cost()': main.cpp:922:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 922 | for (int k = 0; k < this->adj_list_with_costs[j].size(); k++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:933:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 933 | for (int i = 0; i < this->adj_list_with_costs[0].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> Graph::bellmanford()': main.cpp:964:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 964 | for (int i = 0; i < this->adj_list_with_costs[node].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'Graph read_just_the_connections(bool)': main.cpp:1027:6: warning: unused variable 'SN' [-Wunused-variable] 1027 | int SN = 0; | ^~