Compilare: main.cpp: In function 'int main()': main.cpp:49:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 49 | auto [price, node] = q.top(); | ^ main.cpp:52:19: warning: comparison of integer expressions of different signedness: 'std::tuple_element<0, std::pair<int, int> >::type' {aka 'int'} and 'unsigned int' [-Wsign-compare] 52 | if (price > min_path[node]) | ~~~~~~^~~~~~~~~~~~~~~~ In file included from /usr/include/c++/10/cassert:44, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33, from main.cpp:1: main.cpp:55:31: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'std::tuple_element<0, std::pair<int, int> >::type' {aka 'int'} [-Wsign-compare] 55 | assert(min_path[node] == price); | ~~~~~~~~~~~~~~~^~~~~~~~ main.cpp:57:19: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 57 | for (auto [new_price, to] : edges[node]) { | ^