【Merge K Sorted Lists】cpp

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【Merge K Sorted Lists】cpp

题目: Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 代码: /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ cla…

leetcode 【 Merge k Sorted Lists 】python 实现

题目: Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 代码:oj测试通过 Runtime: 231 ms # Definition for singly-linked list. # class ListNode: # def __init__(self, x): # self.val = x # self.next = None class S…

【Merge Two Sorted Lists】cpp

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. 代码: /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode…

leetcode 【 Merge Two Sorted Lists 】 python 实现

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. 代码:oj在线测试通过 Runtime: 208 ms # Definition for singly-linked list. # class ListNode: # def __init__(self,…

【leetcode】Merge k Sorted Lists

Merge k Sorted Lists Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 采用优先队列priority_queue 把ListNode放入优先队列中,弹出最小指后,如果该ListNode有下一个元素,则把下一个元素放入到队列中 /** * Definition for singly-linked list. * stru…

【LeetCode练习题】Merge k Sorted Lists

Merge k Sorted Lists Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 题目意思: 合并K条已经排序的链表.分析时间复杂度. 解题思路: 很容易就想起之前学的合并两条链表的算法,这一题其实就是那个题目的扩展,变成合并K条了.我采用的方法就是迭代法. 如果只有一条,直接返回.如果只有两条,就只需要调用mergeTwo一下.如果超过两…

Merge k Sorted Lists

1. Merge Two Sorted Lists 我们先来看这个问题: 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. 是的,这是一个非常简单链表操作问题.也许你只需要花几分种便能轻松写出代码. 2. Merge k Sorted Lists 我们现在来研究这…

71. Merge k Sorted Lists

Merge k Sorted Lists Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 两个方法: 方法1. 利用 STL 中的 multiset (根据结点内的值)自动对指针排序.空间 O(N), 时间 O(NlogN). (亦可用于 k 个无序链表).(AC: 164ms) /** * Definition for singly-linked…

[Leetcode][Python]23: Merge k Sorted Lists

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com' 23: Merge k Sorted Listshttps://oj.leetcode.com/problems/merge-k-sorted-lists/ Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. ===Comments…

LeetCode之“链表”：Merge Two Sorted Lists && Merge k Sorted Lists

1. Merge Two Sorted Lists 题目链接题目要求: 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. 这道题目题意是要将两个有序的链表合并为一个有序链表.为了编程方便,在程序中引入dummy节点.具体程序如下: /** * Definitio…