even 初始化为链表的第二个节点,即第一个偶数节点。 even_head 保存偶数节点链表的头,以便后续将其连接到奇数节点链表的尾部 迭代遍历链表: 使用while even and even.next 遍历链表,确保每次操作都将奇数节点连接到下一个奇数节点,偶数节点连接到下一个偶数节点。 odd.next = even.next:将当前奇数节点的下一个...
(1)先递归oddEvenList(head -> next -> next),链表此时为2->1->(递归结果:3->6->7->5->4)(2)把2插入到3(递归结果奇数位的第一个位置)前面,把1插入到5前面(递归结果偶数位的第一个位置)此法缺点,每次递归都要求当前链表长度,时间复杂度肯定超O(n)了,不推荐...
起因是8、9行,因为odd和even本身已经是head和head->next两个节点,再设置next为NULL就相当于截断了原链表,even->next=NULL,进不了while循环。如果把18、19注释掉,不会RE。 1classSolution {2public:3ListNode* oddEvenList(ListNode*head) {4if(head == NULL)returnhead;5if(head->next == NULL)returnhead...
Can you solve this real interview question? Even Odd Tree - A binary tree is named Even-Odd if it meets the following conditions: * The root of the binary tree is at level index 0, its children are at level index 1, their children are at level index 2,
LeetCode 328. Odd Even Linked List Given a singly linked list, group all odd nodes together followed by the even nodes. Please note here we are talking about the node number and not the value in the nodes. You should try to do it in pl......
LeetCode 328. Odd Even Linked List Given a singly linked list, group all odd nodes together followed by the even nodes. Please note here we are talking about the node number and not the value in the nodes. You should try to do it in pl......
Can you solve this real interview question? Sort Even and Odd Indices Independently - You are given a 0-indexed integer array nums. Rearrange the values of nums according to the following rules: 1. Sort the values at odd indices of nums in non-increasi
LeetCode 328:奇偶链表 Odd Even Linked List 简介:给定一个单链表,把所有的奇数节点和偶数节点分别排在一起。请注意,这里的奇数节点和偶数节点指的是节点编号的奇偶性,而不是节点的值的奇偶性。请尝试使用原地算法完成。你的算法的空间复杂度应为 O(1),时间复杂度应为 O(nodes),nodes 为节点总数。
LeetCode-Odd Even Linked List Description: Given a singly linked list, group all odd nodes together followed by the even nodes. Please note here we are talking about the node number and not the value in the nodes. You should try to do it in place. The program should run in O(1) ...
Leetcode: Odd Even Linked List Given a singly linked list, group all odd nodes together followed by the even nodes. Please note here we are talking about the node number and not the value in the nodes. You shouldtrytodoit in place. The program should run in O(1) space complexity and...