Compilare: user.cpp: In function ‘int main()’: user.cpp:15:17: warning: unused variable ‘j’ [-Wunused-variable] int t,i,a,b,j; ^ user.cpp: In function ‘void dfs(int)’: user.cpp:52:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<L[x].size(); i++) //parcurg linia lui x pentru a identifica vecinii ^