编写函数，作用是把一个char组成的字符串循环右移n个。比如原来是“abcdefghi”如果n=2，移位后应该是“hiabcdefgh” 求一个答案，万谢！

编写函数，作用是把一个char组成的字符串循环右移n个。比如原来是“abcdefghi”如果n=2，移位后应该是“hiabcdefgh” 求一个答案，万谢！

#include<iostream>
using namespace std;

struct node //a struct of type node
{
char item;
node *next;
};
node *head;
node *ptr = head;


void creatList()
{
cout << "Enter a sequence of charactors and end with &:"<<endl;
node *head=NULL;
node *tail;
char i;
cin >> i;
if (i != '&')
{
head = new node;
head->item = i;
head->next = head;
tail = head; //first node
cin >> i; //cin next integer
while (i != '&')
{
tail->next = new node;
tail = tail->next;
tail->item = i;
tail->next = head;
cin >> i;
}
}

cout << "The charactor in the list are: "<<endl;
node *c = head;

do {
cout<<c->item<<" ";
c = c->next;
}while(c != head);
cout<<endl;

}

void move()
{
ptr = ptr->next;
}

int main()
{
int n;
creatList( );

cout<<"Please enter the number to determine how many positions you want to move: ";
cin>>n; cout<<endl;


for (int j = 0 ; j < n; j++)
{
move();
}


cout<<"The charactor string after traverse: ";

node *cu = ptr;

do {
cout<<cu->item<<" ";
cu = cu->next;
}while(cu != ptr);
cout<<endl;


return 0;
}

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