Compilare: main.cpp: In function 'vi mult(vi, vi)': main.cpp:41:16: warning: moving a local object in a return statement prevents copy elision [-Wpessimizing-move] 41 | return move(R); | ~~~~^~~ main.cpp:41:16: note: remove 'std::move' call main.cpp: In function 'int main()': main.cpp:66:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | if(v >= R.size()) printf("0\n"); | ~~^~~~~~~~~~~