Compilare: main.cpp: In function 'vi mult(vi, vi)': main.cpp:44:16: warning: moving a local object in a return statement prevents copy elision [-Wpessimizing-move] 44 | return move(R); | ~~~~^~~ main.cpp:44:16: note: remove 'std::move' call main.cpp: In function 'int main()': main.cpp:69:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | if(v >= R.size()) printf("0\n"); | ~~^~~~~~~~~~~