C++ Program of Number Sequence

Name:  Number Sequence
Description of the Program: This program displays the input numbers in descending order.

As you can see in the screenshot below, I entered 5 numbers. The numbers are 98,34,56,9 and 5. Then, it displayed the five numbers, 98-56-34-9-5 in descending order. 

//Below are the Codes of the Program:

#include<iostream.h>
#include<conio.h>
void swap (int& a, int& b)
    {
        int c,d;
           c=a;
               d=b;
           a=d;
               b=c;
    }


int main()
{
    int c,a[90]={0},b[90]={0},d,i;
         cout<<"How many numbers?  ";
         cin>>c;
     for(int d=0;d<c;d++)
     {
        cout<<"\n";
      cout<<(d+1)<<" input:  ";
         cin>>a[d];
    }

    for(int g=0;g<c;g++)
     {
        for(int e=0;e<c;e++)
         {
            if((e+1)<c)
              {
                if (a[e]<a[e+1])
                swap(a[e],a[e+1]);
             }
       }
      }

   for(int f=0;f<c;f++)
    {
     
        cout<<a[f]<<"\t";
    }
    getch();
}