Eroare de compilare: user.cpp:10:1: error: ‘vector’ does not name a type vector < pair<int,int> > vec[N]; ^ user.cpp: In function ‘int main()’: user.cpp:22:9: error: ‘vec’ was not declared in this scope vec[x].push_back(make_pair(y,z)); ^ user.cpp:30:23: error: ‘std::set<std::pair<int, int> >::iterator’ has no member named ‘second’ nod=h.begin().second; ^ user.cpp:32:23: error: ‘vec’ was not declared in this scope for(int k=0;k<vec[nod].size();k++) ^