Compilare: main.cpp: In function 'ull Dijkstra(int, int, const std::vector<std::vector<std::pair<int, int> > >&, std::vector<long long unsigned int>&, std::vector<bool>&)': main.cpp:41:25: warning: loop variable 'edge_from_curr' creates a copy from type 'const std::pair<int, int>' [-Wrange-loop-construct] 41 | for (const auto edge_from_curr : adj_lists.at(curr)) // edge_from_curr is a pair of type (node, cost) | ^~~~~~~~~~~~~~ main.cpp:41:25: note: use reference type to prevent copying 41 | for (const auto edge_from_curr : adj_lists.at(curr)) // edge_from_curr is a pair of type (node, cost) | ^~~~~~~~~~~~~~ | & main.cpp:28:13: warning: unused variable 'dist' [-Wunused-variable] 28 | int dist = -p.first; | ^~~~