#include<iostream.h>
#include<conio.h>
#include<math.h>
int main()
{
int x, j, i, m, n, fact, sum ;
clrscr();
cout<<"Enter the no. whose series is required : ";
cin>>x;
cout<<"Enter the number upto which series is required : ";
cin>>n;
sum = x;
for (i=1; i<=n; i++)
{
m=i%2;
if (m == 0)
{
fact = 1 ;
for ( j=1; j<=i; j++)
{
fact = fact * j ;
}
sum = sum + pow (x , i) / fact ;
}
}
cout<<"The result of the required series is :"<<sum;
getch();
return 0;
}