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
5. 验证合并结果 我们将合并后的链表打印出来,看看是否满足我们的预期: 1#合并两个有序链表2s =Solution()3newlist_head = s.mergeTwoLists(listnode1.head, listnode2.head)#非递归4#newlist_head = s.mergeTwoListsRecursion(listnode1.head, listnode2.head) # 递归5newlist =ListNode_handle(newlist_hea...
代码(Python3) # Definition for singly-linked list. # class ListNode: # def __init__(self, val=0, next=None): # self.val = val # self.next = next class Solution: def mergeTwoLists(self, list1: Optional[ListNode], list2: Optional[ListNode]) -> Optional[ListNode]: # 使用一个哨兵...
21. Merge Two Sorted Lists —— Python 题目: 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. 没事来做做题,该题目是说两个排序好的链表组合起来,依然是排序好的,即链表的值从小到大。 代码: 于是...
Python代码: # Definition for singly-linked list. class ListNode(object): def __init__(self, x): self.val = x self.next = None class Solution(object): def mergeTwoLists(self, l1, l2): """ :type l1: ListNode :type l2: ListNode ...
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. 合并两个有序链表 /** * Definition for singly-linked list. * struct ListNode { * int val; ...
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 思路: 合并两个有序链表,做法有两种,递归和迭代,递归的条件就是返回两个节点中...
23. Merge k Sorted Lists Mergeksorted linked lists and return it as one sorted list. Analyze and describe its complexity. Example: Input:[ 1->4->5, 1->3->4, 2->6 ]Output:1->1->2->3->4->4->5->6 思路: 合并k个有序链表,采用分治的思想,时间复杂度O(nlogk) ...
Updated May 12, 2019 Python TashinParvez / DSA_1_UIU Star 30 Code Issues Pull requests All DSA topics covered in UIU DSA-I course, both lab and theory courses. Check DSA-2 Topics: https://github.com/TashinParvez/Data_Structure_and_Algorithms_2_UIU linked-list cpp quicksort mergesor...
Multimerge is a Python package that implements an algorithm for lazily combining several sorted iterables into one longer sorted iterator. It is a drop-in replacement forheapq.mergein the Python standard library. The API (fromheapq.merge()) ...