Compilare: user.cpp: In function ‘int main()’: user.cpp:10:13: warning: unused variable ‘j’ [-Wunused-variable] int n,i,j,ok,nr,sum; ^ user.cpp:10:15: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] int n,i,j,ok,nr,sum; ^ user.cpp:10:18: warning: variable ‘nr’ set but not used [-Wunused-but-set-variable] int n,i,j,ok,nr,sum; ^ user.cpp:24:9: warning: unused variable ‘min’ [-Wunused-variable] int min; ^ user.cpp:30:9: warning: unused variable ‘a’ [-Wunused-variable] int a=n; ^