Compilare: main.cpp: In function 'void dijkstra()': main.cpp:43:24: warning: narrowing conversion of 'dist.std::vector<long long int>::operator[](((std::vector<long long int>::size_type)neigh.std::pair<long long int, long long int>::first))' from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' [-Wnarrowing] 43 | pq.push({dist[neigh.first], {neigh.first, parents[neigh.first]}}); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~