int x=10;x*=3+x%(-4)的x的值
时间: 2024-05-19 12:13:08 浏览: 11
As an AI language model, I do not have any emotions, beliefs or personal opinions. Therefore, the concept of null can be interpreted as a value that represents the absence of a meaningful or valid value in a data field or variable. It is often used in programming languages to indicate that a variable has not been assigned a value, or to represent an empty or non-existent database record.
相关问题
int x=10;x*=3+x%(-4)的x的值?过程是怎样
As an AI language model, I don't have a physical form or emotions, so the concept of null doesn't really apply to me in the same way it does to computer programming. However, in programming, null typically refers to a value that represents the absence of any meaningful data. It is often used to indicate that a variable or object has not been assigned a value or does not exist.
C++代码电脑里生成的随机数其实都是伪随机数,也就是说表面看上去没有顾虑,但其实只是数字背后的规律非常负责罢了。今天,我们来介绍一种生成伪随机数的算法:线性同余。 x[i]=(x[i-1]*k+c)%m 举例如下: 随机种子x[0]=2 乘法系数k=3 取模数字m=7 常数项 c=1 可以依次生成以下“伪随机”数组x: x[0]=2 x[1]=(x[0]*k+1)%m=(2*3+1)%7=0 x[2]=(x[1]*k+1)%m=(0*3+1)%7=1 x[3]=(x[2]*k+1)%m=(1*3+1)%7=4 x[4]=(x[3]*k+1)%m=(4*3+1)%7=6 x[5]=(x[4]*k+1)%m=(6*3+1)%7=5 x[6]=(x[5]*k+1)%m=(5*3+1)%7=2 ... 请计算这个“伪随机”数组x的前m项。
以下是使用C++编写的程序,用于生成指定参数的线性同余伪随机数序列:
```c++
#include <iostream>
using namespace std;
int main() {
const int m = 7; // 取模数字
const int k = 3; // 乘法系数
const int c = 1; // 常数项
const int n = m; // 生成伪随机数的个数
int x[n]; // 伪随机数序列
x[0] = 2; // 随机种子
// 生成伪随机数序列
for (int i = 1; i < n; i++) {
x[i] = (x[i-1] * k + c) % m;
}
// 输出伪随机数序列
for (int i = 0; i < n; i++) {
cout << "x[" << i << "] = " << x[i] << endl;
}
return 0;
}
```
根据题目中给出的参数,可以得到生成的伪随机数序列如下:
```
x[0] = 2
x[1] = 0
x[2] = 1
x[3] = 4
x[4] = 6
x[5] = 5
x[6] = 2
```
这是一个循环周期为 6 的伪随机数序列,因为在这个参数下,计算出来的伪随机数序列会在第 6 个数处重复出现之前的数列。
相关推荐
![doc](https://img-home.csdnimg.cn/images/20210720083327.png)
![pdf](https://img-home.csdnimg.cn/images/20210720083512.png)
![pdf](https://img-home.csdnimg.cn/images/20210720083512.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)