Compilare: user.cpp: In function ‘void afis()’: user.cpp:58:9: warning: unused variable ‘i’ [-Wunused-variable] int i,j; ^ user.cpp:58:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp: In function ‘int main()’: user.cpp:67:6: warning: ‘aux’ may be used uninitialized in this function [-Wmaybe-uninitialized] char aux; ^ user.cpp:104:13: warning: ‘sj’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<si<<" "<<sj<<"\n"<<aux;; ^ user.cpp:104:4: warning: ‘si’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<si<<" "<<sj<<"\n"<<aux;; ^