Compilare: user.cpp: In function ‘void solveBFS(int)’: user.cpp:22:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<vp[x].size(); i++){ ^ user.cpp: In function ‘int main()’: user.cpp:52:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<rez.size(); i++){ ^ user.cpp:55:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(aux == rez[i].first && i<rez.size()){ ^