Main.cc: In function 'int main()': Main.cc:6:10: error: 'n' was not declared in this scope cin>>n; ^ Main.cc:7:9: error: 'fz' was not declared in this scope ans=fz*1.0/fm; ^ Main.cc:7:16: error: 'fm' was not declared in this scope ans=fz*1.0/fm; ^ Main.cc:9:9: error: 't' was not declared in this scope t=fz; ^ Main.cc:14:32: error: 'setprecision' was not declared in this scope cout<fixed<<setprecision(4)<<ans<<endl; ^