首先指定一个数为第几个人死，然后报数，到这个人死的时候他可以重新指定新从他后面开始的第几个人死，循环下去

#include<iostream>
using namespace std;
#include<ctime>
//循环链表
//动态约瑟夫问题，cur中储存下一次第几个人死
//创建结构体
typedef struct Pnode
{
	int data;
	int cur;
	Pnode *next;
}*linklist;
void creatlist(linklist &L, int n)
{
	linklist head, temp;
	head = (linklist)malloc(sizeof(Pnode));//创建头指针
	head->next = L;
	int i = 1;
	if (n > 0)
	{
		L->data =i;
		L->cur = rand() % 10+1;
		L->next = NULL;//给第一个结点赋值
		temp = L;
		for ( i = 1; i < n; i++)
		{
			linklist p = (linklist)malloc(sizeof(Pnode));
			p->data =i+1;
			p->cur = rand() % 10+1;
			temp->next = p;
			p->next = NULL;
			temp = p;
		}
		temp->next = L;//尾结点指向头结点
		free(head);//释放head
	}
	else
	{
		cout << "error to input" << endl;
	}
}
void print(linklist &L,int n)
{
	linklist p=L,k=L;
	cout << "data" << endl;
	for (int i = 0; i < n; i++)
	{
		cout <<p->data << " ";
		p = p->next;
	}
	cout << endl;
	cout << "cur" << endl;
	for (int i = 0; i < n; i++)
	{
		cout << k->cur << " ";
		k = k->next;
	}
	cout << endl;
}
//在第n个位置插入元素e
void insertlist(linklist &L, int n, int e)
{
	linklist k=L,temp;
	for (int i = 1; i < n-1; i++)
	{
		k = k->next;
	}
	linklist p = (linklist)malloc(sizeof(Pnode));
	p->data = e;
	temp = k->next;
	k->next = p;
	p->next = temp;
}
int main()
{
	srand((unsigned int)time(NULL));
	linklist L=(linklist)malloc(sizeof(Pnode));
	creatlist(L, 41);
	print(L, 41);
	int i = 1,num=0;
	cin >> num;//第一次循环让第一个人死
	while (L->next!=L)
	{
		L = L->next;
		++i;
		if (i % num == num-1)
		{
			linklist temp;
			temp = L->next;
			num = temp->cur;//把死亡结点的cur赋值给num
			L->next = temp->next;
			cout << temp->data << "->";
			free(temp);//释放该元素
			L=L->next;
			i = 1;//重置数目，因为每次释放的结点数不一样，无法统一取整
		}
	}
	cout << endl;
	system("pause");
	return 0;
}