Compilare: user.cpp: In function ‘int main()’: user.cpp:8:11: warning: unused variable ‘min’ [-Wunused-variable] long long min=0; ^ user.cpp:22:16: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<a<<" "<<b; ^ user.cpp:22:7: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<a<<" "<<b; ^