c语言求一到二十的阶乘的和
时间: 2024-06-13 14:06:33 浏览: 12
以下是C语言求1到20的阶乘的和的代码:
```c
#include <stdio.h>
int main() {
int i, j;
long long factorial = 1, sum = 0;
for (i = 1; i <= 20; i++) {
factorial = 1;
for (j = 1; j <= i; j++) {
factorial *= j;
}
sum += factorial;
}
printf("1! + 2! + ... + 20! = %lld\n", sum);
return 0;
}
```
运行结果为:
```
1! + 2! + ... + 20! = 2561327494111820313
```
相关问题
c语言求一到五的阶乘之和
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。
c语言一到二十阶乘求和
以下是C语言求1到20阶乘的和的代码:
```c
#include <stdio.h>
int main() {
int i, j;
long long factorial = 1, sum = 0;
for (i = 1; i <= 20; i++) {
factorial = 1;
for (j = 1; j <= i; j++) {
factorial *= j;
}
sum += factorial; }
printf("The sum of factorials from 1 to 20 is: %lld\n", sum);
return 0;
}
```
运行结果为:
```
The sum of factorials from 1 to 20 is: 2561327494111820313
```