Compilare: main.cpp: In function 'int main()': main.cpp:49:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 49 | const auto [a, b] = ptri(m, n); | ^ main.cpp:67:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 67 | for (auto &[a, b] : pit) | ^