Compilare: main.cpp: In function 'int main()': main.cpp:41:9: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] 41 | ++m[*(long long *)&temp]; | ^~~~~~~~~~~~~~~~~~ main.cpp:45:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 45 | for(auto& [_, i] : m) | ^