Compilare: user.cpp: In function ‘int main()’: user.cpp:22:15: warning: unused variable ‘q’ [-Wunused-variable] long long q; ^ user.cpp:23:15: warning: unused variable ‘inv’ [-Wunused-variable] long long inv=0,ins; ^ user.cpp:23:21: warning: unused variable ‘ins’ [-Wunused-variable] long long inv=0,ins; ^ user.cpp:24:17: warning: unused variable ‘b’ [-Wunused-variable] long long a,b,p; ^