Compilare: user.cpp: In function ‘int main()’: user.cpp:19:15: warning: variable ‘aux’ set but not used [-Wunused-but-set-variable] int r,aux; ^ user.cpp:8:24: warning: unused variable ‘r’ [-Wunused-variable] int n,i,a[100][10],r,aux,b,x; ^ user.cpp:8:26: warning: unused variable ‘aux’ [-Wunused-variable] int n,i,a[100][10],r,aux,b,x; ^