Compilare: main.cpp: In member function 'void Graf::functie1(std::vector<int>*, std::vector<std::vector<int> >&)': main.cpp:61:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(int i = 0; i < connections.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> Graf::dijkstra2(int, std::vector<std::vector<std::pair<int, int> > >&)': main.cpp:143:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 143 | for(int i = 1; i < lista_adiacenta2[b].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> Graf::bellman_ford2(int, std::vector<std::vector<std::pair<int, int> > >&)': main.cpp:179:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 179 | for(int i = 1; i < lista_adiacenta2[b].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::bfs(int)': main.cpp:297:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 297 | 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:350:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 350 | 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:404:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 404 | 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:416:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 416 | 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:430:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 430 | for(int i = 0; i < lista_adiacenta1[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::havel_hakimi()': main.cpp:464:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 464 | if(grade.size() < x) | ~~~~~~~~~~~~~^~~ main.cpp: In member function 'void Graf::functie(int, int*, std::stack<int>&)': main.cpp:530:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 530 | for(int i = 0; i < lista_adiacenta[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs_biconex1()': main.cpp:568:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 568 | 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:581:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 581 | for(int i = 0; i < lista_adiacenta[x].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:585:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 585 | if(parinte != y)