C++ programme to find the sum of the sequence

#include<iostream.h>

#include<conio.h>

#include<math.h>

void sum(int x,int n)

{

               double sum=0,s=0;

               int k=1;

               long fac=1;

               for(int i=1;i<=n-1;i++)

               {

                              for(int j=(2*k);j>=1;j--)

                              {

                                             fac*=j;

                              }

                              sum+=(pow(x,i)/fac);

               }

               s=1+sum;

               cout<<"\nThe sum is:\n";

               cout<<s;

}

void main()

{

               clrscr();

               int x,n;

               cout<<"\nEnter the limiting value\n";

               cin>>n;

               cout<<"\nEnter the value \n";

               cin>>x;

               sum(x,n);

getch();

}

OUTPUT:

Enter the limiting value                                                        

5                                                                              

                                                                               

Enter the value                                                                 

3                                                                              

                                                                               

The sum is:                                                                     

13.1875