koding berat badan ideal

#include<iostream.h>
class bmi
{
      public:
             float berat;
            float tinggi;
      public:
             void setBerat(float berat)
             {
                  this->berat=berat;
                  }
            float getBerat()
             {
                   return berat;
                   }
             void setTinggi(float tinggi)
             {
                  this->tinggi=tinggi;
                  }
             float getTinggi()
             {
                 return tinggi;
                 }
           
             float ideal()
             {
                   return berat/(tinggi*tinggi)*10000;
                   }
                   };
                  
main()
{
      float  x,y;
     
      bmi hasil;
     
      cout<<"berat :";
      cin>>x;
     
      cout<<"tinggi: ";
      cin>>y;
     
      hasil.setBerat(x);
      hasil.setTinggi(y);
     
      cout<<" BMI Anda adalah : "<<hasil.ideal()<<endl;
     
      if (hasil.ideal()<18.5)
      {
              cout<<"Kurang"<<endl;
              }
              else if (hasil.ideal()<22.9)
              {
                   cout<<"Normal"<<endl;
                   }
                  else if (hasil.ideal()<30)
                   {
                           cout<<"Kelebihan berat badan"<<endl;
                           }
                           else if (hasil.ideal()<=50)
                           {
                               cout<<"Obesitas"<<endl;
                               }


system ("pause");
}