1 Linked List 和 Python 基础操作 1.1 链表原理 1.2 链表的操作:增删查改 1.3 链表 in Python 2 LeetCode 21 合并两个有序链表 2.1 读题 2.2 完整的代码实现(包括了前面的结点定义、数组和链表转换函数) 时间复杂度分析 空间复杂度分析 考虑空列表的代码改进 2.3 解法二:递归 时间复杂度分析 空间
Example: Input:1->2->4, 1->3->4Output:1->1->2->3->4->4 因为没有空间要求,所以想到ListNode*head = new ListNode(INT_MIN);重新定义一个链表,分别比较两个有序链表的大小然后将所在结点一次加入到定义的新链表中。 最后注意释放头结点空间。 /** * Definition for singly-linked list. * struct...
}else{ l2.Next = mergeTwoLists(l1, l2.Next);returnl2; } } 执行结果: leetcode-cn: 执行用时:0ms, 在所有 Go 提交中击败了100.00%的用户内存消耗:2.6MB, 在所有 Go 提交中击败了26.43%的用户leetcode: Runtime:0ms, faster than100.00% of Go online submissions for Merge Two Sorted Lists.Mem...
LeetCode 148: 对无序链表排序 时间复杂度:O(|list1| + |list2|) 需要遍历 list1 中的全部 O(|list1|) 个结点 需要遍历 list2 中的全部 O(|list2|) 个结点 空间复杂度:O(1) 只需要维护常数个额外变量 代码(Python3) # Definition for singly-linked list. # class ListNode: # def __init__...
leetcode.21---Merge Two Sorted Lists Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. 题目:合并两个单链表 思路:先比较两个各链表第一个节点,大的那个节点先设为合并的链表第一个节点,这样就找到了...
LeetCode-cn Merge two sorted linked lists and return it as a sorted list. The list should be made by splicing together the nodes of the first two lists. Example 1: Input: l1 = [1,2,4], l2 = [1,3,4] Output: [1,1,2,3,4,4] ...
21. Merge Two Sorted Lists Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. 题意:合并两个原本有序的列表 c++代码: /// main.cpp// LeetCode/// Created by linSir on 2017/9/5.// Copyright...
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Example: Input:1->2->4,1->3->4Output:1->1->2->3->4->4 题目大意: 将两个有序的链表合并为一个有序的链表 ...
LeetCode 23. Merge k Sorted Lists(合并 k 个有序链表) 原题Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 题目: 合并 k 个排序链表,返回合并后的排序链表。请分析和描述算法的复杂度。 Example: My Solution 方案一(超时) 方案二(超时) Reference...
LeetCode 21. Merge Two Sorted Lists 合并两个有序链表 1. problem description Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. 将两个有序链表合并为一个新的有序链表并返回。新链表是通过拼接给定...