Compilare: user.cpp: In function ‘int CautaHash(int)’: user.cpp:27:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(it=0;it<H[i].size();it++) ^ user.cpp: In function ‘int main()’: user.cpp:64:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<sol.size();i++) ^