/**
 * Created by wuchao on 17-3-29.
 */
/*
public class RandomListNode {
    int label;
    RandomListNode next = null;
    RandomListNode random = null;

    RandomListNode(int label) {
        this.label = label;
    }
}
*/
public class test {
    public static void main(String[] args){
        RandomListNode node1 = new RandomListNode(1);
        RandomListNode node2 = new RandomListNode(2);
        RandomListNode node3 = new RandomListNode(3);
        RandomListNode node4 = new RandomListNode(4);
        RandomListNode node5 = new RandomListNode(5);
        node1.next=node2;
        node2.next=node3;
        node3.next=node4;
        node4.next=node5;

        node1.random=node4;
        node3.random=node1;

        show(node1);

        RandomListNode node = Clone(node1);
        show(node1);
        //show(node);
    }
    public static void show(RandomListNode node){
        RandomListNode tmp = node;
        while(tmp!=null){
            System.out.print("{值:"+tmp.label+", 对象ID:"+tmp+", randomID:"+tmp.random+"}   ");
            tmp=tmp.next;
        }
        System.out.println();
    }

    //以下为复制复杂链表的函数
    public static RandomListNode Clone(RandomListNode pHead)
    {
        if(pHead==null) return null;

        RandomListNode nodeTemp = pHead;
        //先复制节点的值label
        while(nodeTemp!=null){
            RandomListNode nodeTemp2 = nodeTemp.next;
            RandomListNode node = new RandomListNode(nodeTemp.label);
            node.next=nodeTemp2;
            nodeTemp.next=node;
            nodeTemp = node.next;
        }
        //接着复制节点的random
        nodeTemp = pHead;
        while(nodeTemp!=null){
            if(nodeTemp.random!=null){
                nodeTemp.next.random=nodeTemp.random.next;
            }
            nodeTemp=nodeTemp.next.next;
        }

        //show(pHead);

        //拆分，拆分时注意还原pHead链表，因为pHead链表已经被修改
        RandomListNode head = pHead.next;
        RandomListNode temp1 = head;
        RandomListNode temp2 = pHead;
        while(temp1.next!=null){
            temp2.next = temp2.next.next;
            temp2 = temp2.next;

            temp1.next = temp1.next.next;
            temp1=temp1.next;
        }
        temp2.next=null;

        return head;
    }
}