Merge Sorted Array : https://leetcode.com/problems/merge-sorted-array/ 合并两个有序数组 : https://leetcode.cn/problems/merge-sorted-array/ LeetCode 日更第143天,感谢阅读至此的你 欢迎点赞、收藏鼓励支持小满
leetcode 【 Merge Sorted Array 】python 实现 题目: Given two sorted integer arrays A and B, merge B into A as one sorted array. Note: You may assume that A has enough space (size that is greater or equal tom+n) to hold additional elements from B. The number of elements initialized ...
的确python自带的sort函数非常诱人,只需要一步到位,非常的偷懒和方便 nums1=sort(nums1[0:m]+nums2[0:n]) 但是考虑到这是算法题,python自带的sort函数,时间复杂度是O(nlogn),即O((m+n)log(m+n)),是长于题目要求O(m+n)的。
AC代码(Python) 1classSolution(object):2defmerge(self, nums1, m, nums2, n):3"""4:type nums1: List[int]5:type m: int6:type nums2: List[int]7:type n: int8:rtype: void Do not return anything, modify nums1 in-place instead.9"""10all = m + n - 111m = m - 112n = n...
ret.next=self.mergeTwoLists(l2.next,l1)returnret 结果:AC 四、学习与记录 这个其实算是一个归并排序: 归并排序(MERGE-SORT)是建立在归并操作上的一种有效的排序算法,该算法是采用分治法(Divide and Conquer)的一个非常典型的应用。将已有序的子序列合并,得到完全有序的序列;即先使每个子序列有序,再使子序...
解题方法 新建数组 日期 题目地址:https://leetcode.com/problems/merge-sorted-array/description/ 题目描述 Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. ...
用一个大小为K的最小堆(用优先队列+自定义降序实现)(优先队列就是大顶堆,队头元素最大,自定义为降序后,就变成小顶堆,队头元素最小),先把K个链表的头结点放入堆中,每次取堆顶元素,然后将堆顶元素所在链表的下一个结点加入堆中。 代码语言:javascript ...
Leetcode 21.合并两个有序链表merge-two-sorted-lists合并链表,Mergetwosortedlinkedlistsandreturnitasanewlist.Thenewlistshouldbemadebysplicingtogetherthenodesofthefirsttwolists.合并两个有序链表
# Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity.import heapq # Definition for singly-linked list.class ListNode: def __init__(self, x): self.val = x self.next = None def __repr__(self): ...
sort(key = lambda x: x.start) # 按照左区间排序(请看下方总结) result.append(intervals[0]) # 先将第一个加入区间 for interval in intervals[1:]: prev = result[-1] # 数组最后一个 if prev.end >= interval.start: # 如果有交叉,将前一个区间的end变为他们两的最大值 prev.end = max(...