Compilare: main.cpp: In member function 'void Graf::DFS(int, std::vector<bool>&)': main.cpp:122:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 122 | for(int i = 1; i < lista_vecini[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::hakimi(int, std::vector<int>&, std::ostream&)': main.cpp:174:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 174 | if(aux > lista.size()) | ~~~~^~~~~~~~~~~~~~ main.cpp: In member function 'int Graf::DFS_sortaret(std::queue<int>&)': main.cpp:194:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 194 | for(int j = 1; j < lista_vecini[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:204:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 204 | for(int i = 1; i < lista_vecini[aux].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:211:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::queue<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 211 | if(nr_noduri == lista.size()) | ~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::darb(int, int*, bool*, std::queue<int>, int&, int&)': main.cpp:339:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 339 | for(i = 0; i < lista_vecini[el].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void pb_apm()': main.cpp:539:25: warning: unused variable 'cost1' [-Wunused-variable] 539 | int N, M, cost = 0, cost1 = 0; | ^~~~~