Compilare: main.cpp: In function 'int main()': main.cpp:41:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 41 | auto [dist, u] = pq.top(); | ^ main.cpp: In function 'int getroot(int)': main.cpp:23:1: warning: control reaches end of non-void function [-Wreturn-type] 23 | } | ^