Compilare: main.cpp: In function 'int add(int, int, int)': main.cpp:27:1: warning: no return statement in function returning non-void [-Wreturn-type] 27 | } | ^ main.cpp: In function 'int main()': main.cpp:37:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 37 | for (auto &[x, y, z] : r) | ^ main.cpp:45:16: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 45 | for (auto &[x, y, z] : r) { | ^ main.cpp:40:8: warning: unused variable 'cer2' [-Wunused-variable] 40 | bool cer2 = false; | ^~~~