复杂链表的复制

/*
public class RandomListNode {
    int label;
    RandomListNode next = null;
    RandomListNode random = null;

    RandomListNode(int label) {
        this.label = label;
    }
}
*/
public class Solution {
    public RandomListNode Clone(RandomListNode pHead)
    {
        RandomListNode Head=pHead;
        if(pHead==null){
            return null;
        }
        RandomListNode cur=pHead;
        RandomListNode next=pHead;
        while(cur!=null){
            next=cur.next;
            cur.next=new RandomListNode(cur.label);
            cur.next.next=next;
            cur=next;
        }
        
        cur=pHead;
        next=pHead;
        while(cur!=null){
            cur.next.random=cur.random==null?null:cur.random.next;
            cur=cur.next.next;;
        }
        RandomListNode pHead1=Head.next;
        while(Head!=null){
            next=Head.next.next;
            Head.next.next=next==null?null:next.next;
            Head.next=next;
            Head=next;
        }
        return pHead1;

    }
}