Compilare: user.cpp: In function ‘int Get(int&)’: user.cpp:51:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:80:76: warning: narrowing conversion of ‘it.__gnu_cxx::__normal_iterator<_Iterator, _Container>::operator-><std::pair<int, int>*, std::vector<std::pair<int, int> > >()->std::pair<int, int>::first’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] H.insert ( { it->first, x.nr_k, C_min[it->first][x.nr_k] } ); ^ user.cpp:88:70: warning: narrowing conversion of ‘it.__gnu_cxx::__normal_iterator<_Iterator, _Container>::operator-><std::pair<int, int>*, std::vector<std::pair<int, int> > >()->std::pair<int, int>::first’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] H.insert ( { it->first, i, C_min[it->first][i] } ); ^