c语言求一到五的阶乘之和
时间: 2023-11-11 13:05:38 浏览: 110
一到五的阶乘之和可以用循环语句和累加器来实现,具体代码如下:
```c
#include <stdio.h>
int main()
{
int i, num = 5, factorial = 1, sum = 0;
for (i = 1; i <= num; i++)
{
factorial *= i;
sum += factorial;
}
printf("The sum of factorials from 1 to %d is %d\n", num, sum);
return 0;
}
```
输出结果为:
```
The sum of factorials from 1 to 5 is 153
```
其中,第一次循环计算1的阶乘,第二次循环计算2的阶乘,以此类推,同时使用累加器`sum`来累加每个阶乘的值,得到最终结果。
相关问题
C语言求1到n阶乘之和
您好,以下是C语言代码,用于求1到n阶乘之和:
```
#include <stdio.h>
int main() {
int n, i, j, factorial, sum = 0;
printf("请输入一个正整数n:");
scanf("%d", &n);
for (i = 1; i <= n; i++) {
factorial = 1;
for (j = 1; j <= i; j++) {
factorial *= j;
}
sum += factorial;
}
printf("1到%d的阶乘之和为:%d\n", n, sum);
return 0;
}
```
希望能够帮到您!
c语言求1到n的阶乘之和
以下是两种C语言求1到n的阶乘之和的例子:
1.使用递归函数求解
```c
#include <stdio.h>
int factorial(int n) {
if (n == 0) {
return 1;
} else {
return n * factorial(n - 1);
}
}
int main() {
int n = 10;
int sum = 0;
int i;
for (i = 1; i <= n; i++) {
sum += factorial(i);
}
printf("1到%d的阶乘之和为:%d\n", n, sum);
return 0;
}
```
2.使用for循环求解
```c
#include <stdio.h>
int main() {
int n, i, j;
long long fact = 1, sum = 0;
scanf("%d", &n);
for (i = 1; i <= n; i++) {
fact = 1;
for (j = 1; j <= i; j++) {
fact *= j;
}
sum += fact;
}
printf("1到%d的阶乘之和为:%lld\n", n, sum);
return 0;
}
```