Compilare: user.cpp: In function ‘void Solve(int)’: user.cpp:31:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:68:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(Drumuri[i].size()<=mn) ^ user.cpp:70:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(Drumuri[i].size()==mn) ^