Eroare de compilare: user.cpp:13:28: error: ISO C++ forbids declaration of ‘delete_nod’ with no type [-fpermissive] delete_nod(int now, int nod) ^ user.cpp: In function ‘int delete_nod(int, int)’: user.cpp:23:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void dfs(int)’: user.cpp:29:13: warning: unused variable ‘lg’ [-Wunused-variable] int lg = V[nod].size(); ^