Compilare: user.cpp: In function ‘void afis(std::vector<int>)’: user.cpp:20:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v.size();++i){ ^ user.cpp: In function ‘void Add(int, int, int)’: user.cpp:30:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = x; i < AIB[nr].size(); i += zeros(i)){ ^