Run id: 5903

Main.cc: In function 'int main()':
Main.cc:5:5: error: 'dou' was not declared in this scope
     dou h=100;
     ^
Main.cc:5:9: error: expected ';' before 'h'
     dou h=100;
         ^
Main.cc:8:9: error: 'h' was not declared in this scope
         h=h/2;
         ^
Main.cc:11:32: error: 'setprecision' was not declared in this scope
     cout<fixed<<setprecision(6)<<n<<" "<<h<<endl;
                                ^
Main.cc:11:43: error: 'h' was not declared in this scope
     cout<<fixed<<setprecision(6)<<n<<" "<<h<<endl;
                                           ^