Compilare: user.cpp: In function ‘int main()’: user.cpp:67:9: warning: unused variable ‘a’ [-Wunused-variable] int a, b, z, t, ki, c; ^ user.cpp:67:12: warning: unused variable ‘b’ [-Wunused-variable] int a, b, z, t, ki, c; ^ user.cpp:67:15: warning: unused variable ‘z’ [-Wunused-variable] int a, b, z, t, ki, c; ^ user.cpp:67:18: warning: unused variable ‘t’ [-Wunused-variable] int a, b, z, t, ki, c; ^ user.cpp:67:21: warning: unused variable ‘ki’ [-Wunused-variable] int a, b, z, t, ki, c; ^ user.cpp:67:25: warning: unused variable ‘c’ [-Wunused-variable] int a, b, z, t, ki, c; ^