Main.cc:17:30: warning: invalid suffix on literal; C++11 requires a space between literal and identifier [-Wliteral-suffix] cout<y<<" "<<x<<" "<<c<<" "endl; ^ Main.cc: In function 'int main()': Main.cc:17:33: error: expected ';' before 'endl' cout<<y<<" "<<x<<" "<<c<<" "endl; ^