[C++知识库]用C++的random_shuffle()函数打乱int数组顺序

程序背景：

开组会，汇报人已确定，出一个随机的汇报顺序。

#include<bits/stdc++.h>
using namespace std;

const int NUM = 12;//汇报人数 

int main()
{
	string names[] = {"SpongeBob","Patrick","Squidward"," H. Krabs","Gary","Sandy",
	"Sheldon","Pearl","Mrs. Poppy","Larry","Mermaid","Polly"};//汇报人姓名，这里用海绵宝宝中角色名
	 
	int sarr[NUM]={};//源序号数组 source array 
	for(int i=0;i<NUM;i++){
		sarr[i] = i;
	}
    int narr[NUM];//排序后的序号数组 new array
	 
    cout<<endl<<"2022.03.01会议汇报顺序："<<endl;
    
    memcpy(narr,sarr,sizeof(sarr));
    
    random_shuffle(narr,narr+NUM);
    
    for(int j=0;j<NUM;j++){
    	cout<<j+1<<"  "<<names[narr[j]]<<endl;
	}
        
	return 0;
}

运行结果

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