Compilare: user.cpp: In function ‘int main()’: user.cpp:13:20: warning: unused variable ‘nume’ [-Wunused-variable] char c[10000],nume[100],prenume[100] ; ^ user.cpp:13:30: warning: unused variable ‘prenume’ [-Wunused-variable] char c[10000],nume[100],prenume[100] ; ^ user.cpp:16:11: warning: variable ‘k’ set but not used [-Wunused-but-set-variable] int k=0; ^