//---------------------------------------------------------------------------
#include <iostream.h>
#include <math.h>
#include <conio.h>
#include <vcl.h>
#pragma hdrstop

//---------------------------------------------------------------------------
//int v=10;
#pragma argsused
int main(int argc, char* argv[])
{
   int kolvo=0,kolvo1=0,kolvo2=0,prosr=0;
   int pribyll[15];
   int day=0;int day1=0;int h,i,s;
   double zenazakupki;
   double zenaprodaji;
   double zenaprosrochenyh;
   int a[30];int b[30];
   int vsego=0;
   cout<<"vvedite zenu zakupki: ";
   cin>>zenazakupki;
   cout<<endl;
   cout<<"vvedite zenu prodaji: ";
   cin>>zenaprodaji;
   cout<<endl;
   cout<<"vvedite zenu prosrochenyh: ";
   cin>>zenaprosrochenyh;
   cout<<endl;
   cout<<"-----------";
   cout<<endl;
   cout<<"spros|    |";
   cout<<endl;
   cout<<"-----------";
   cout<<endl;
   cout<<" day |    |";
   cout<<endl;
   cout<<"-----------";
   cout<<endl;
   for (i=0;i<14;i++)
     {
       gotoxy (5*i+8,8);
       cin>>a[i];
       gotoxy (5*i+8,10);
       cin>>b[i];
       if(i==13){goto zz;}
       if(i>0 && b[i]==0){goto zz;}
       gotoxy (i*5+12,7);cout<<"-----";
       gotoxy (i*5+12,8);cout<<"    |";
       gotoxy (i*5+12,9);cout<<"-----";
       gotoxy (i*5+12,10);cout<<"    |";
       gotoxy (i*5+12,11);cout<<"-----";
     }
  zz:  for (int j=0;j<=i;j++)
           {
             day=day+b[j];
           }

       for ( h=0;h<i;h++)
       {
         for ( s=h;s<i;s++)
         {
           day1=day1+b[s];

           //day=day+b[s]


           if (s-h<h){kolvo2=kolvo2+a[s-h]*b[s-h];}

         }
         vsego=day*a[h];

         kolvo1=day1*a[h];
         kolvo=kolvo1+kolvo2;
         double zatraty=day*zenazakupki*a[h];
         prosr=vsego-kolvo;
         pribyll[h]=kolvo*zenaprodaji+prosr*zenaprosrochenyh-zatraty;
         /*cout<<vsego;
         cout<<endl;
         cout<<zatraty;
         cout<<endl;
         cout<<kolvo;
         cout<<endl;
         cout<<prosr;
         cout<<endl;
         cout<<pribyll[h];
         cout<<endl;*/
         day1=0;kolvo2=0;
       }
       double t=pribyll[0];
       for (int k=0;k<i;k++)
        {
          if (t<pribyll[k]){t=pribyll[k];}
        }
       cout<<t/day;
       getch();
       return 0;
}
//---------------------------------------------------------------------------