Compilare: main.cpp: In function 'void citire()': main.cpp:24:8: warning: unused variable 'nr' [-Wunused-variable] int nr; ^~ main.cpp: In function 'void prieteniComuni(int, int)': main.cpp:61:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ;i<V[x].size();i++) ~^~~~~~~~~~~~ main.cpp:66:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0 ;j<V[nod].size() && ok;j++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void sugestie(int)': main.cpp:94:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i<V[nod].size();i++) ~^~~~~~~~~~~~~~