Compilare: user.cpp: In function ‘int main()’: user.cpp:6:13: warning: unused variable ‘j’ [-Wunused-variable] int n,i,j,q,w,ma,a,b; ^ user.cpp:6:17: warning: unused variable ‘w’ [-Wunused-variable] int n,i,j,q,w,ma,a,b; ^ user.cpp:33:19: warning: ‘q’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<ma<<" "<<q<<" "<<n; ^