Compilare: main.cpp: In function 'void DFS(int)': main.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int i = 0; i < L[nod].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void citire2()': main.cpp:69:10: warning: variable 'ok' set but not used [-Wunused-but-set-variable] 69 | bool ok = 0; | ^~