//Tao lop phan so

#include<conio.h>

#include<stdio.h>

#include<iostream.h>

#include<math.h>

//----------------

class phanso

{

      private:

              long ts,ms;

      public:

             phanso();

             phanso(long m, long n);

             void nhap();

             void in();

             phanso dd();

             phanso nd();

             phanso tg();

             phanso operator+(phanso ps);

             phanso operator-(phanso ps);

             phanso operator*(phanso ps);

             phanso operator/(phanso ps);

             friend long ucln(long m,  long n);

             friend void bd(phanso);

  };

//-------------

phanso::phanso()

{ts=0;ms=1;}

//-------------

phanso::phanso(long m,long n)

{

 // if(n==0){cout<<"

Ko ton tai phan";}

  //else{ts=m;ms=n;}

  ts=m;ms=n;

}

//---------------

void phanso::nhap()

{

     phanso ps;

   cout<<"

TS: ";cin>>ts;

   cout<<"

MS: ";cin>>ms;

   if(ms==0){cout<<"

Yeu cau nhap lai:";ps.nhap();phanso(ts,ms);}

}

//----------------

void phanso::in()

{

     if(ms==1){cout<<"

TS: "<<ts;}

     else{

          cout<<"

TS: "<<ts<<" "<<"MS: "<<ms;

     }

}

//----------

phanso phanso::dd()

{

    long m=-ts;

    long n=ms;

    return phanso(m,n);

}

//-------------

phanso phanso::nd()

{

    long m=ms;

    long n=ts;

    return phanso(m,n);

}

//------------

long ucln(long m, long n)

{

     if(n==0)return m;

     else{return ucln(n,m%n);}

}

//--------------

phanso phanso::tg()

{

       long m=this->ts;

       long n=this->ms;

       long u=ucln(m,n);

       m=m/u;

       n=n/u;

       return phanso(m,n);

}

//----------------

phanso phanso:: operator+(phanso ps)

{

      phanso mps;

      mps.ts=this->ts;

      mps.ms=this->ms;

      long u=ucln(mps.ms,ps.ms);

      long msc=(mps.ms/u)*ps.ms;

      long tsc=((msc/mps.ms)*mps.ts)+((msc/ps.ms)*ps.ts);

      mps=phanso(tsc,msc);

      return mps.tg();

}

//----------------

phanso phanso::operator-(phanso ps)

{

      phanso mps;

      mps.ts=this->ts;

      mps.ms=this->ms;

      long u=ucln(mps.ms,ps.ms);

      long msc=(mps.ms/u)*ps.ms;

      long tsc=((msc/mps.ms)*mps.ts)-((msc/ps.ms)*ps.ts);

      mps=phanso(tsc,msc);

      return mps.tg();

}

//-------------

phanso phanso::operator*(phanso ps)

{

      phanso mps;

      mps.ts=this->ts;

      mps.ms=this->ms;

      long msc=mps.ms*ps.ms;

      long tsc=mps.ts*ps.ts;

      mps=phanso(tsc,msc);

      return mps.tg();

}

//-------------

phanso phanso::operator/(phanso ps)

{

      phanso mps;

      mps.ts=this->ts;

      mps.ms=this->ms;

      return (mps*ps.nd()).tg();

}

//-----------

void bd(phanso ps)

{

     long m,n;

     m=ps.ts;

     n=ps.ms;

     long k,kk,l,cs[50],sd[50],x;

     cout<<"

Bieu dien dang thap phan cua "<<m<<"/"<<n<<":";

     cout<<m/n;

     if(m%n==0)return;

     l=kk=k=0;

     x=m%n;

     kk++;sd[kk]=x;

     while(l==0)

     {

        x=x*10;

        k++;cs[k]=x/n;x=x%n;

        if(x==0)break;

        for(long i=1;i<=kk;i++)

        {

            if(x==sd[i]){l=i;break;}

        }

        kk++;sd[kk]=x;

     }

     cout<<",";

     if(l==0){for(long i=1;i<=k;i++)cout<<cs[i];}

     else

     {

         for(long i=1;i<=l-1;i++)cout<<cs[i];cout<<"(";

         for(long i=l;i<=k;i++)cout<<cs[i];cout<<")";

     }

}

//-------

int main()

{

    phanso ps1,ps2,ps;

    cout<<"

Nhap 2 PS:

";

    cout<<"

PS1";ps1.nhap();

    cout<<"

PS1 la:";ps1.in();

    cout<<"

DPS1:";ps1.dd().in();

    cout<<"

NPS1:";ps1.nd().in();

    cout<<"

TPS1:";ps1.tg().in();

    bd(ps1);

    cout<<"

PS2:";ps2.nhap();

    cout<<"

PS2 la:";ps2.in();

    cout<<"

DPS2:";ps2.dd().in();

    cout<<"

NPSps2:";ps2.nd().in();

    cout<<"

TPS2:";ps2.tg().in();

    bd(ps2);

    ps=ps1+ps2;

    cout<<"

Tong:";bd(ps);

    ps=ps1-ps2;

    cout<<"

Tru:";bd(ps);

    ps=ps1*ps2;

    cout<<"

Tich:";bd(ps);

    ps=ps1/ps2;

    cout<<"

Thuong:";bd(ps);

    getch();

}