Compilare: user.cpp: In function ‘int main()’: user.cpp:33:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size(); i++) ^ user.cpp: In function ‘Cel Lee(int, int)’: user.cpp:152:1: warning: control reaches end of non-void function [-Wreturn-type] }; ^