Eroare de compilare: user.cpp: In function ‘void bfs(int)’: user.cpp:36:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[x].size(); i++){ ^ user.cpp: In function ‘int main()’: user.cpp:61:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<u[i].size(); j++)out<<u[i][j].f<<" "; ^ user.cpp:64:7: error: request for member ‘clear’ in ‘v’, which is of non-class type ‘std::vector<short int> [1005]’ v.clear(); ^ user.cpp:65:7: error: request for member ‘clear’ in ‘u’, which is of non-class type ‘std::vector<std::pair<short int, short int> > [1005]’ u.clear(); ^