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这样不算打表吧?#include "iostream"
using namespace std;
long jiechen(int n)
{
if (n==0)
return 1;
else if (n==1)
return 1;
else
return n*jiechen(n-1);
}
int main(void)
{
int i;
double sum=0;
cout<<"n e\n- -----------\n";
for (i=0;i<10;i++)
{
sum += 1.0/jiechen(i);
cout<<i<<' ';
if (i<3)
printf("%.9g\n",sum);
else
printf("%.9lf\n",sum);
}
return 0;
}
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