【Redis】命令学习笔记——列表(list)+集合(set)+有序集合(sorted set)(17+15+20个超全字典版)
本篇基于redis 4.0.11版本,学习列表(list)和集合(set)和有序集合(sorted set)相关命令。列表按照插入顺序排序,可重复,可以添加一个元素到列表的头部(左边)或者尾部(右边)。集合是 String 类型的无序集合,不能出现重复的数据。有序集合和集合一样也是string类型元...
LintCode 6. Merge Two Sorted Arrays
题目 思路 水题,基本技能。 代码 class Solution: """ @param A: sorted integer array A @param B: sorted integer array B @return: A new sorted integer array...
[leetcode]median of two sorted arrays【寻找第k小的数问题】
Median of Two Sorted ArraysThere are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The ove...
[leetcode]Median of Two Sorted Arrays
问题就是找两个排序数组里面第k大的数 我们在A,B前k/2里面,比较A[k/2] , B[k/2] 哪个小说明第k个肯定不在里面,可以抛弃,然后继续递归处理 class Solution {public: /** * choice k/2 from a, and k/2 fr...
Leetcode Median of Two Sorted Arrays
题目地址:https://leetcode.com/problems/median-of-two-sorted-arrays/ 题目解析:看到题目的第一个思路是用二分查找,但是深入下去后发现使用二分查找很多边界和细节方面的处理很麻烦,退而求其次,采用分治法。如果两个数组的长度和为偶数,则求两个数组的...
—— Median of Two Sorted Arrays
4、 Median of Two Sorted Arrays 两个排序数组的中位数 两个排序的数组A和B分别含有m和n个数,找到两个排序数组的中位数,要求时间复杂度应为O(log (m+n))。 样例 给出数组A = [1,2,3,4,5,6] B = [2,3,4,...
Python入门:sort与sorted区别
sort(*, key=None, reverse=None) #只是针对list的方法 This method sorts the list in place, using only < comparisons between items. Exceptions are not suppre...
leetcode — remove-duplicates-from-sorted-list-ii
/** * Source : https://oj.leetcode.com/problems/remove-duplicates-from-sorted-list-ii/ * * * Given a sorted linked list, delete all nodes that have du...
python 小技巧(glob,guid,序列化,压缩字符,有序字典,sorted函数,分片)
1、glob模块glob模块是最简单的模块之一,内容非常少。用它可以查找符合特定规则的文件路径名。跟使用windows下的文件搜索差不多。查找文件只用到三个匹配符:”*”, “?”, “[]”。”*”匹配0个或多个字符;”?”匹配单个字符;”[]”匹配指定范围内的字符,如:[0-9]匹配数字。glo...
leetcode 之Search in Rotated Sorted Array(三)
描述 Suppose a sorted array is rotated at some pivot unknown to you beforehand.(i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a t...
[Leetcode][JAVA] Convert Sorted Array to Binary Search Tree && Convert Sorted List to Binary Search Tree
Convert Sorted Array to Binary Search TreeGiven an array where elements are sorted in ascending order, convert it to a height balanced BST.很简单的二分法,只要给...
[LeetCode] Merge Sorted Array 混合插入有序数组
Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.Note:The number of elements initialized in nums1and nums2 ...
LeetCode_88. Merge Sorted Array
88. Merge Sorted ArrayEasyGiven two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.Note:The number of elements init...
【LeetCode】88. Merge Sorted Array (2 solutions)
Merge Sorted ArrayGiven 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 ...
[LeetCode] Search in Rotated Sorted Array II [36]
称号Follow up for "Search in Rotated Sorted Array":What if duplicates are allowed?Would this affect the run-time complexity? How and why?Write a functio...
1. Two Sum + 15. 3 Sum + 16. 3 Sum Closest + 18. 4Sum + 167. Two Sum II - Input array is sorted + 454. 4Sum II + 653. Two Sum IV - Input is a BST
▶ 问题:给定一个数组 nums 及一个目标值 target,求数组中是否存在 n 项的和恰好等于目标值▶ 第 1题,n = 2,要求返回解● 代码,160 ms,穷举法,时间复杂度 O(n2),空间复杂度 O(1) class Solution { public: vector<in...
常用函数-filter、map、reduce、sorted
常用函数filtermapreducesorted和列表自带sort待续。。。一、filter函数1.说明filter()函数接收一个函数 f 和一个可迭代对象,这个函数 f 的作用是对每个元素进行判断,返回 True或 False,filter()根据判断结果自动过滤掉不符合条件的元素,返回由符合...
154. Find Minimum in Rotated Sorted Array II
Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]). F...
154. Find Minimum in Rotated Sorted Array II
问题描述: Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4,5,6,7] might become [4,5...
154. Find Minimum in Rotated Sorted Array II(js)
154. Find Minimum in Rotated Sorted Array II Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0...