Question

求1+1/1！+1/2!+1/3!+……1/m! 菜鸟等大神中…………

#include "stdio.h"
double fact(int p,int q);
void main ()
{
int m,i;
double f,sum=1;
printf("please input m:\n");
scanf("%d",&m);
for(i=1;i<=m;i++)
sum=sum+1/fact(i,m);
printf("fm is:%f",f);
}
double fact (int p,int q)
{
int a,n;
double power=1;
for(a=1;a<=n;a++)
power=power*a;
return power;
}

Answer 1

#include "stdio.h"
double fact(int n);
void main ()
{
int m,i;
double f,sum=1;
printf("please input m:\n");
scanf("%d",&m);
for(i=1;i<=m;i++)
sum=sum+1/fact(i);
printf("fm is:%7.4f",sum);
}

double fact (int n) {
int a;
double power=1;
for(a=1;a<=n;a++)
power=power*a;
return power;
}

追问

#include "stdafx.h"
#include "stdio.h"
double fact(int p);
void main ()
{
int m,i;
double f,sum=1;
printf("please input m:\n");
scanf("%d",&m);
for(i=1;i<=m;i++)
sum=sum+1/fact(i);
printf("fm is:%7.4f",sum);
}
double fact (int p)
{
int a,n;
double power=1;
for(a=1;a<=n;a++)
power=power*a;
return power;
}
敢问这样的话，哪还错了

追答

{
int a,n;
double power=1;
for(a=1;a<=n;a++) // a<=n, n从哪来的？
power=power*a;
return power;
}