编写程序,求1!+2!+3!+...+10!,验证1!+...+10!
时间: 2023-11-24 08:51:52 浏览: 74
以下是Python程序,用于计算1!+2!+3!+...+10!和1!+...+10!的结果:
```python
# 计算1!+2!+3!+...+10!
sum1 = 0
factorial = 1
for i in range(1, 11):
factorial *= i
sum1 += factorial
print("1!+2!+3!+...+10! =", sum1)
# 计算1!+...+10!
sum2 = 0
for i in range(1, 11):
factorial = 1
for j in range(1, i+1):
factorial *= j
sum2 += factorial
print("1!+...+10! =", sum2)
```
输出结果为:
```
1!+2!+3!+...+10! = 4037913
1!+...+10! = 4037913
```
可以看到,两个结果相等,因此验证了1!+...+10!的正确性。
相关问题
编写程序,求1!+2!+3!+...+10!,验证1!+...+10!用c语言
以下是用C语言编写程序,求1!+2!+3!+...+10!的代码:
```c
#include <stdio.h>
int main() {
int n = 10;
int sum = 0;
int sum1 = 1;
for(int i = 1; i <= n; i++) {
sum1 *= i;
sum += sum1;
}
printf("%d\n", sum);
return 0;
}
```
运行结果为:4037913
编写程序求1!+2!+3!+4!+5!+…+10!,验证1!+…+10!=4037913。
以下是两种Java编写程序求1!+2!+3!+4!+5!+…+10!的方法,并验证1!+…+10!=4037913:
1. 方法一:
```java
public class Test {
public static void main(String[] args) {
int total = 0;
int factorial = 1;
for (int i = 1; i <= 10; i++) {
factorial *= i;
total += factorial;
}
System.out.println("1!+2!+3!+...+10!的阶乘和是:" + total);
System.out.println("1!+2!+3!+...+10!的阶乘和是否等于4037913:" + (total == 4037913));
}
}
```
输出结果:
```
1!+2!+3!+...+10!的阶乘和是:4037913
1!+2!+3!+...+10!的阶乘和是否等于4037913:true
```
2. 方法二:
```java
public class Test {
public static void main(String[] args) {
int sum = 0;
for (int i = 1; i <= 10; i++) {
int factorial = 1;
for (int j = 1; j <= i; j++) {
factorial *= j;
}
sum += factorial;
}
System.out.println("1!+2!+3!+...+10!的阶乘和是:" + sum);
System.out.println("1!+2!+3!+...+10!的阶乘和是否等于4037913:" + (sum == 4037913));
}
}
```
输出结果:
```
1!+2!+3!+...+10!的阶乘和是:4037913
1!+2!+3!+...+10!的阶乘和是否等于4037913:true
```
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