Compilare: main.cpp: In function 'void dfs(std::vector<std::vector<int> >, int, std::vector<int>&)': main.cpp:29:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int i = 0; i < result.size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp:39:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int i = 0; i < graph.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs_connected(std::vector<std::vector<int> >, int, std::vector<std::vector<int> >&)': main.cpp:56:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for(int i = 0; i < visit.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:69:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for(int j = 0; j <= result_dfs.size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int conexidad(std::vector<std::vector<int> >, std::vector<std::vector<int> >&, int, std::vector<std::vector<int> >)': main.cpp:84:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 84 | for (int current_index = 0; current_index < components.size() - 1; current_index++) | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:114:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 114 | for(int i = 0; i<added.size(); i++) | ~^~~~~~~~~~~~~