Compilare: main.cpp: In member function 'void graf::BFS(int)': main.cpp:58:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for (int i = 0; i < matriceAd[x].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:51:16: warning: unused variable 'y' [-Wunused-variable] 51 | int x, y; | ^ main.cpp: In member function 'void graf::DFS()': main.cpp:80:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for (int j = 1; j < matriceAd[x].size(); ++j) { | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::sortaret(std::vector<int>)': main.cpp:101:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 101 | for (int i = 0; i < matriceAd[x].size(); ++i) { | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:142:23: warning: 'n' is used uninitialized in this function [-Wuninitialized] 142 | vector<int> dep(n + 1, 0); | ~~^~~