#include<stdio.h>
#include<conio.h>
int main()
{
int n;
float sum = 0,d,fact =1,j,i;
clrscr();
printf("Enter the number:");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
fact=1;
for (j=1;j<=i;j++)
{
fact=fact*j;
}
d=(float)i/(float)fact;
sum=sum+d;
}
printf("sum = %.2f", sum);
getch();
return 0;
}