Compilare: user.cpp: In function ‘void dfs(int, int)’: user.cpp:45:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<G[nod].size(); ++i) ^ user.cpp: In function ‘void out()’: user.cpp:72:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<componente[i].size(); ++j) ^ user.cpp:69:13: warning: unused variable ‘dim’ [-Wunused-variable] int dim = componente[i].size(); ^