Compilare: user.cpp: In function ‘void citire()’: user.cpp:24:13: warning: unused variable ‘c’ [-Wunused-variable] int a,b,c,i; ^ user.cpp: In function ‘void dfs(int)’: user.cpp:41:27: 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 ^