Compilare: main.cpp: In function 'int Dijk1::one_step()': main.cpp:151:8: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 151 | auto [d, nod] = V.top(); | ^ main.cpp:155:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 155 | for(auto [it, w] : L[nod]) | ^ main.cpp: In function 'int Dijk2::one_step()': main.cpp:192:8: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 192 | auto [d, nod] = V.top(); | ^ main.cpp:196:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 196 | for(auto [it, w] : L[nod]) | ^ main.cpp: In function 'int main()': main.cpp:250:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 250 | for(auto [it, w] : L[u]) { | ^