View Compilation Error

0_0_30765841_22142.cpp: In instantiation of 'T2& hash_map<T2>::operator[](point) [with T2 = int]':
0_0_30765841_22142.cpp:75:33:   required from here
0_0_30765841_22142.cpp:50:32: error: 'struct hash_map<int>::node' has no member named 'y'
       if(e[i].fi==u.fi&&e[i].se==u.se) return e[i].v;
                                ^
0_0_30765841_22142.cpp:50:17: error: 'struct hash_map<int>::node' has no member named 'x'
       if(e[i].fi==u.fi&&e[i].se==u.se) return e[i].v;
                 ^