Compilare: user.cpp: In function ‘int main()’: user.cpp:8:40: warning: unused variable ‘y00’ [-Wunused-variable] ll r00,r01,r10,r11,x00,x01,x10,x11,y00,y01,y10,y11; ^ user.cpp:8:44: warning: unused variable ‘y01’ [-Wunused-variable] ll r00,r01,r10,r11,x00,x01,x10,x11,y00,y01,y10,y11; ^ user.cpp:8:48: warning: unused variable ‘y10’ [-Wunused-variable] ll r00,r01,r10,r11,x00,x01,x10,x11,y00,y01,y10,y11; ^ user.cpp:8:52: warning: unused variable ‘y11’ [-Wunused-variable] ll r00,r01,r10,r11,x00,x01,x10,x11,y00,y01,y10,y11; ^