Compilare: main.cpp: In function 'int main()': main.cpp:32:9: warning: unused variable 'm' [-Wunused-variable] int m,op,a,b,rz,val; ^ main.cpp:32:11: warning: unused variable 'op' [-Wunused-variable] int m,op,a,b,rz,val; ^~ main.cpp:32:14: warning: unused variable 'a' [-Wunused-variable] int m,op,a,b,rz,val; ^ main.cpp:32:16: warning: unused variable 'b' [-Wunused-variable] int m,op,a,b,rz,val; ^ main.cpp:32:18: warning: unused variable 'rz' [-Wunused-variable] int m,op,a,b,rz,val; ^~