Compilare: user.cpp: In function ‘void dfp(int)’: user.cpp:13:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();++i){ ^ user.cpp: In function ‘void dfm(int, int)’: user.cpp:24:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<T[nod].size();++i){ ^ user.cpp: In function ‘int main()’: user.cpp:57:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<sol[i].size();++j){ ^