Compilare: user.cpp: In function ‘int main()’: user.cpp:7:8: warning: unused variable ‘k’ [-Wunused-variable] int n,k,p,s; ^ user.cpp:7:10: warning: unused variable ‘p’ [-Wunused-variable] int n,k,p,s; ^ user.cpp:7:12: warning: unused variable ‘s’ [-Wunused-variable] int n,k,p,s; ^