#include<stdio.h>
int f(int n)
{
return n<=1?1:n*f(n-1);
}
int main()
{
const int n=9;
double sum=0;
printf("n e\n- -----------\n");
for(int i=0;i<=n;i++)
{
//printf("1/f(%d)=%f\n",i,1/(double)f(i));
//if(!i)
sum+=1/(double)f(i);
if(i<=1)printf("%d %d\n",i,(int)sum);
else if(i==2)printf("%d %.1f\n",i,sum);
else
printf("%d %.9f\n",i,sum);
}
return 0;
}
int f(int n)
{
return n<=1?1:n*f(n-1);
}
int main()
{
const int n=9;
double sum=0;
printf("n e\n- -----------\n");
for(int i=0;i<=n;i++)
{
//printf("1/f(%d)=%f\n",i,1/(double)f(i));
//if(!i)
sum+=1/(double)f(i);
if(i<=1)printf("%d %d\n",i,(int)sum);
else if(i==2)printf("%d %.1f\n",i,sum);
else
printf("%d %.9f\n",i,sum);
}
return 0;
}