Question

用C语言编写程序，求1到10的阶乘之和：S=1！+2！+3！+4！+5！+6！+7！+8！+9！+10！

Answer 1

#include <stdio.h>void main(){ double p=1,s=0.0; for (int i=1; i<=10;i++) { p=p*i; s=s+p; } printf("s=%lf\n",s);}

Answer 2

★172666706">int fun(int n) /*求n的阶乘*/
{
if(n > 1)
return n*fun(n - 1);
if(n == 1)
return 1;
} 1.do while 语句
int sum = 0;
int i = 1;
do
{
sum += fun(i);
i++;
}while(i <= 10) 2.while语句
int sum = 0;
int i = 1;
while(i <= 10)
{
sum += fun(i);
i++;
}

Answer 3

#include <stdio.h>

int main()
{
int n,s,i = 1,a = 1;
scanf("%d",&n);
while(i <= n)
{
a *= i;
s += a;
i++;
}
printf("s = %d\n",s);
reuturn 0;
}

Answer 4

#include<stdio.h>
main()
{
int sum=0;
int x = 1;
for(int i = 1;i <= 10;i++)
{
sum = sum + x;
x = x * i;
}
}

Answer 5

#include"stdio。
h" /头文件名/int sum(int n) /定义形参，形参部分/ {int i,f=1,sum1=0; /定义变量/for(i=1;i{f=f*i;sum1=sum1 f;}return sum1;}void main(){int x,a=8,i;for(i=1;iprintf("%d! ",i);x=sum(a);printf("=%d
",x);}。