**/RandomListNode*copyRandomList(RandomListNode *head){if(!head)returnnullptr;//链表为空unordered_map<int, RandomListNode*>hmp; RandomListNode* cpHead =newRandomListNode(head->label);//复制头结点RandomListNode* p = head->next,* q =cpHead; hmp.insert(make_pair(head->label, cpHead));//...
Return a deep copy of the list. /** * Definition for singly-linked list with a random pointer. * struct RandomListNode { * int label; * RandomListNode *next, *random; * RandomListNode(int x) : label(x), next(NULL), random(NULL) {} * };*/ 解题思路: 一般列表deep copy(不只是cop...
publicNodecopyRandomList(Nodehead){if(head==null){returnnull;}Nodel1=head;Nodel2=null;//生成所有的节点,并且分别插入到原有节点的后边while(l1!=null){l2=newNode(l1.val);l2.next=l1.next;l1.next=l2;l1=l1.next.next;}//更新插入节点的 randoml1=head;while(l1!=null){if(l1.random!=null)...
A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null. Return adeep copyof the list. The Linked List is represented in the input/output as a list ofnnodes. Each node is represented as a pair of[val, random_...
Return a deep copy of the list. 1. 2. 3. 解析 思路参考;LeetCode:Copy List with Random Pointer 在原链表的每个节点后面拷贝出一个新的节点 依次给新的节点的随机指针赋值,而且这个赋值非常容易 cur->next->random = cur->random->next 断开链表可得到深度拷贝后的新链表 ...
Copy List with Random Pointer A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null. Return a deep copy of the list. 栈迭代 复杂度 时间O(N) 空间 O(N) 如果不算新链表的空间则是O(1) ...
[前端]-[刷题]-leetcode 138 copy-list-with-random-pointer, 视频播放量 15、弹幕量 0、点赞数 0、投硬币枚数 0、收藏人数 0、转发人数 0, 视频作者 rhythm022, 作者简介 ,相关视频:[前端]-[刷题]-leetcode 1721 swapping-nodes-in-a-linked-list,[前端]-[刷题]-leetcod
1,对原链表每个节点进行赋值,并插入对每个节点的后面。2,从头开始对每个新加节点的random位赋值 3,恢复原链表,同时把新复制的节点保证在新链表并返回。
题目: 138. Copy List with Random Pointer A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null. Return a deep copy of the ...
random 指针指向的是 原链表节点 random 指针指向的节点的后面的那个节点 Step 2: 将链表拆成两个 lists C++实现代码: #include<iostream>#include<new>usingnamespacestd;//Definition for singly-linked list with a random pointer.structRandomListNode ...