Compilare: user.cpp: In function ‘void Update(int, int)’: user.cpp:19:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Hash[list].size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:42:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<sol.size();++i) ^