Compilare: user.cpp: In function ‘int main()’: user.cpp:31:14: warning: unused variable ‘copie’ [-Wunused-variable] int n=0, copie=0, invers=0, nrcif=0; ^ user.cpp:31:23: warning: unused variable ‘invers’ [-Wunused-variable] int n=0, copie=0, invers=0, nrcif=0; ^ user.cpp:31:33: warning: unused variable ‘nrcif’ [-Wunused-variable] int n=0, copie=0, invers=0, nrcif=0; ^