Compilare: main.cpp: In function 'void DFS(int)': main.cpp:45:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(int i = 0 ; i < g[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int Identificare_radacina()': main.cpp:38:1: warning: control reaches end of non-void function [-Wreturn-type] 38 | } | ^