Compilare: main.cpp: In member function 'void Graf::functie1(std::vector<int>*, std::vector<std::vector<int> >&)': main.cpp:103:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 103 | for(int i = 0; i < connections.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> Graf::dijkstra2(int)': main.cpp:175:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 175 | for(int i = 1; i < lista_adiacenta2[b].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> Graf::bellman_ford2(int)': main.cpp:211:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 211 | for(int i = 1; i < lista_adiacenta2[b].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::bfs(int)': main.cpp:298:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 298 | for(int i = 0; i < lista_adiacenta[nod_curent].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs(std::vector<int>&, int)': main.cpp:351:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 351 | for(int i = 0; i < lista_adiacenta[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::parcurgere(std::vector<std::vector<int> >&)': main.cpp:405:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 405 | for(int j = 0; j < componenta[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs1(int, std::unordered_map<int, bool>&, std::vector<int>&)': main.cpp:417:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 417 | for(int i = 0; i < lista_adiacenta[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs2(int, std::unordered_map<int, bool>&, std::vector<int>&, int, std::vector<std::vector<int> >&, std::vector<std::vector<int> >&)': main.cpp:431:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 431 | for(int i = 0; i < lista_adiacenta1[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::havel_hakimi()': main.cpp:465:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 465 | if(grade.size() < x) | ~~~~~~~~~~~~~^~~ main.cpp: In member function 'void Graf::functie(int, int*, std::stack<int>&)': main.cpp:531:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 531 | for(int i = 0; i < lista_adiacenta[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs_biconex1()': main.cpp:569:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 569 | for(int j = 0; j < componente_biconexe[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs_biconex2(int, int, int&, std::stack<int>&, std::vector<std::vector<int> >&, std::vector<int>&, std::vector<int>&, std::vector<int>&)': main.cpp:582:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 582 | for(int i = 0; i < lista_adiacenta[x].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:586:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 586 | if(parinte != y)