Compilare: main.cpp: In member function 'void Graph::print_solution(std::vector<int>, int)': main.cpp:261:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 261 | for(int i = start; i < solution.size(); i ++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::BFS(int)': main.cpp:287:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 287 | for(i = 0; i < edges[curr].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::DFS(int)': main.cpp:304:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 304 | for(int i = 0; i < edges[curr].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::biconnected_utility(int, std::stack<int>&, std::vector<int>&, std::vector<std::vector<int> >&, int&)': main.cpp:317:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 317 | for(int i = 0; i < edges[curr].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::biconnected()': main.cpp:407:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 407 | for (int j = 0; j < solution[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::DFS_kosaraju(int, std::vector<std::vector<int> >&, std::vector<int>&)': main.cpp:420:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 420 | for(int j = 0; j < reversed[curr].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::strongly_connected()': main.cpp:470:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 470 | for(i = 0; i < solution.size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp:472:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 472 | for(int j = 0; j < solution[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::top_sort_utility(int, std::stack<int>&)': main.cpp:483:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 483 | for(int i = 0; i < edges[curr].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::critical(int, int, std::vector<std::vector<int> >&, std::vector<int>&)': main.cpp:557:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 557 | for(i = 0; i < edges[curr].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::bridges()': main.cpp:591:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 591 | for(int i = 0; i < sol.size(); i++) | ~~^~~~~~~~~~~~ main.cpp: In member function 'void Graph::kruskal()': main.cpp:618:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 618 | for(i = 0; i < solution.size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::dijkstra(int)': main.cpp:646:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 646 | for(i = 0; i < weightedNeighbours[x].size(); i++)