Main.cc:4:5: error: expected primary-expression before 'int' int a,b,c,d; ^ Main.cc:4:5: error: expected '}' before 'int' Main.cc:4:5: error: expected ',' or ';' before 'int' Main.cc:5:5: error: 'cin' does not name a type cin>>a>>b>>c>>d; ^ Main.cc:6:5: error: 'cout' does not name a type cout<<(c*10+d)/(a*10+b); ^ Main.cc:8:4: error: expected unqualified-id before 'return' return 0; ^ Main.cc:9:1: error: expected declaration before '}' token } ^