Compilare: main.cpp: In function 'void functie(int)': main.cpp:19:9: warning: unused variable 'vi' [-Wunused-variable] int vi=v[i]; ^~ main.cpp:25:13: warning: variable 'x' set but not used [-Wunused-but-set-variable] int j=i,x=v[i]*v[j],a,b; ^ main.cpp:25:25: warning: variable 'a' set but not used [-Wunused-but-set-variable] int j=i,x=v[i]*v[j],a,b; ^ main.cpp:25:27: warning: variable 'b' set but not used [-Wunused-but-set-variable] int j=i,x=v[i]*v[j],a,b; ^