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redis之持久化操作
Redis是一种高级key-value数据库。它跟memcached类似,不过数据可以持久化,而且支持的数据类型很丰富。有字符串,链表,集 合和有序集合。支持在服务器端计算集合的并,交和补集(difference)等,还支持多种排序功能。所以Redis也可以被看成是一个数据结构服务 器。Redis的 ...
分类:其他好文   时间:2019-10-04 20:33:21    阅读次数:92
Codeforces Round #590 (Div. 3) B2. Social Network (hard version)
链接: https://codeforces.com/contest/1234/problem/B2 题意: The only difference between easy and hard versions are constraints on n and k. You are messagin ...
分类:Web程序   时间:2019-10-02 22:39:26    阅读次数:213
Two progressions CodeForce 125D 思维题
An arithmetic progression is such a non-empty sequence of numbers where the difference between any two successive numbers is constant. This constant n ...
分类:其他好文   时间:2019-10-02 10:33:46    阅读次数:96
leetcode 5199. 交换字符串中的元素
地址 https://leetcode-cn.com/contest/weekly-contest-155/problems/smallest-string-with-swaps/ 给你一个字符串 s,以及该字符串中的一些「索引对」数组 pairs,其中 pairs[i] = [a, b] 表示字符 ...
分类:其他好文   时间:2019-09-28 23:30:49    阅读次数:132
Equalizing by Division
The only difference between easy and hard versions is the number of elements in the array. You are given an array aa consisting of nn integers. In one ...
分类:其他好文   时间:2019-09-26 23:09:11    阅读次数:63
【leetcode】1200. Minimum Absolute Difference
题目如下: Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. Return a list of p ...
分类:其他好文   时间:2019-09-25 10:51:44    阅读次数:99
Find K Pairs with Smallest Sums 解答
Question You are given two integer arrays nums1 and nums2 sorted in ascending order and an integer k. Define a pair (u,v) which consists of one elemen ...
分类:其他好文   时间:2019-09-25 00:57:21    阅读次数:105
【Kata Daily 190924】Difference of Volumes of Cuboids(长方体的体积差)
题目: In this simple exercise, you will create a program that will take two lists of integers, a and b. Each list will consist of 3 positive integers ab ...
分类:其他好文   时间:2019-09-24 13:51:41    阅读次数:102
leetcode 744.寻找比目标字母大的最小字母(Java 二分查找 easy)
https://leetcode-cn.com/problems/find-smallest-letter-greater-than-target/submissions/ ...
分类:编程语言   时间:2019-09-23 22:12:04    阅读次数:114
908. Smallest Range I - LeetCode
Description: Given an array A of integers, for each integer A[i] we may choose any x with -K <= x <= K, and add x to A[i]. After this process, we have ...
分类:其他好文   时间:2019-09-23 13:39:54    阅读次数:127
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