[C++知识库]随机数生成 - C++函数

引入头文件<ctime>

运用函数 - random_shuffle and srand

输入n个人 和 需要的随机数数量

输出：随机数

详见代码

# include <iostream>
# include <vector>
# include <algorithm>
# include <cstdio>
# include <ctime>

using namespace std;

int main()
{
	printf("Plase enter total number and random number");
	
	srand(time(0));
	
    int num, rans;
    cin >> num >> rans;
    
    int a[200];
    for(int i = 1; i <= num; i ++)  a[i] = i;
    random_shuffle(a + 1 , a + num + 1);
    
    for(int i = 1; i <= rans; i ++) cout << a[i] << ' ';
    
    return 0;
}
	
	 
	   
    

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