Compilare: user.cpp: In function ‘int main()’: user.cpp:35:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (v.size()<=c) v.push_back(MAX); ^ user.cpp:42:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (v.size()<=c) v.push_back(MAX); ^ user.cpp:50:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<v.size(); i++) ^