Compilare: user.cpp: In function ‘void operatie1(int)’: user.cpp:16:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<h[x%MOD].size();i++) ^ user.cpp: In function ‘void operatie2(int)’: user.cpp:36:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<h[x%MOD].size();i++) ^ user.cpp: In function ‘int operatie3(int)’: user.cpp:56:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<h[x%MOD].size();i++) ^