题目链接
题目描述
输入一个复杂链表(每个节点中有节点值,以及两个指针,一个指向下一个节点,另一个特殊指针指向任意一个节点),返回结果为复制后复杂链表的 head。
public class RandomListNode {
int label;
RandomListNode next = null;
RandomListNode random = null;
RandomListNode(int label) {
this.label = label;
}
}
解题思路
public class Solution {
public RandomListNode Clone(RandomListNode pHead){
if (pHead==null) return null;
// 复制
RandomListNode cur = pHead;
while (cur != null) {
RandomListNode clone = new RandomListNode(cur.label);
clone.next = cur.next;
cur.next = clone;
cur = clone.next;
}
// 复制Random
cur = pHead;
while (cur != null) {
RandomListNode clone = cur.next;
if (cur.random != null) clone.random = cur.random.next;
cur = clone.next;
}
// 将复制与原生拆开
cur = pHead;
RandomListNode clonePHead = pHead.next;
while (cur.next != null) {
RandomListNode clone = cur.next;
cur.next = clone.next;
cur = clone;
}
return clonePHead;
}
}
来源:CSDN
作者:Melo丶
链接:https://blog.csdn.net/weixin_38611497/article/details/104172096