Compilare: main.cpp: In member function 'bool Graph::BFS(int, int, std::vector<int>&)': main.cpp:32:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for (int ind = 0; ind < graph[u].size(); ind++) { | ~~~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:117:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 117 | for (int i = 0; i < sol.size(); i++) { | ~~^~~~~~~~~~~~ main.cpp:89:9: warning: unused variable 'k' [-Wunused-variable] 89 | int k = aux[1]; | ^