Question

C语言程序 编写一个函数,计算并输出下列多项式的值：s=1+1/1!+1/2!+3/3!+……+1/n!

Answer 1

#include

int main(void)

{

int n;

int i,j;

float sum = 1.0;

float dex = 1.0;

printf("输入一个数：");

scanf("%d",&n);

for (i = 2; i 0; --j)

{

dex*=j;

}

sum+=1/dex;

dex = 1.0;

}

printf("%.2fn",sum);

return 0;

}