Compilare: main.cpp: In function 'int main()': main.cpp:73:46: warning: narrowing conversion of 'dist.std::vector<_Tp, _Alloc>::operator[]<long long int, std::allocator<long long int> >(((std::vector<long long int>::size_type)to.Muchie::nod))' from '__gnu_cxx::__alloc_traits<std::allocator<long long int> >::value_type {aka long long int}' to 'int' inside { } [-Wnarrowing] pq.push({to.nod,dist[to.nod]}); ^