C语言编程：计算并输出下列多项式的值 F(m)=1+1/(1!)+1/(2!)+.....+1/（m!）

#includedouble fac(int n){if(n==0)return 1.0; return n*fac(n-1);}int main(){int i,m; double s=0; scanf("%d",&m); for(i=0;i<m+1;i++) s+=1.0/fac(i); printf("%.16lf\n",s); return 0;}