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575. Distribute Candies
Problem : Given an integer array with even length, where different numbers in this array represent different kinds of candies. Each number means one c ...
分类:其他好文   时间:2020-04-17 00:23:13    阅读次数:77
Linux配置FTP(vsftpd)服务和无法上传下载问题解决
vsftpd的配置说明 ftp的配置文件主要有三个,位于/etc/vsftpd/目录下,分别是: ftpusers 该文件用来指定那些用户不能访问ftp服务器。 user_list 该文件用来指示的默认账户在默认情况下也不能访问ftp vsftpd.conf vsftpd的主配置文件 问题 配置之后 ...
分类:Web程序   时间:2020-04-16 19:43:08    阅读次数:177
477. Total Hamming Distance
Problem : The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Now your job is to find ...
分类:其他好文   时间:2020-04-13 12:22:42    阅读次数:64
(57)ElasticSearch重建索引且保证应用程序不用重启
ElasticSearch中字段的类型一旦确定就不能修改,如果我们要修改其类型就要重新建mapping。然后把旧索引中的数据批量导入到新索引中。同时采用给索引起别名的方式使客户端应用程序不需要重启。 1、演示字段类型一旦确定不能修改 添加文档,同时默认创建了索引 PUT index1/type1/1 ...
分类:其他好文   时间:2020-04-12 18:16:51    阅读次数:83
mysql主从复制报错
Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work. ...
分类:数据库   时间:2020-04-09 21:30:55    阅读次数:92
Ionic在Generating ES5 bundles for differential loadind的时候报错
https://blog.csdn.net/qq_41823263/article/details/105084611 ...
分类:其他好文   时间:2020-04-07 20:09:55    阅读次数:145
[Algo] Min Cost to Cut Ropes
Given n ropes of different lengths, we need to connect these ropes into one rope. We can connect only 2 ropes at a time. The cost required to connect ...
分类:其他好文   时间:2020-04-06 09:45:55    阅读次数:78
Kappa Architecture: A Different Way to Process Data
https://www.blue-granite.com/blog/a-different-way-to-process-data-kappa-architecture Kappa architecture proposes an immutable data stream as the prima ...
分类:移动开发   时间:2020-04-05 22:03:37    阅读次数:112
1026. Maximum Difference Between Node and Ancestor
Given the root of a binary tree, find the maximum value V for which there exists different nodes A and B where V = |A.val - B.val| and A is an ancesto ...
分类:其他好文   时间:2020-04-05 12:01:52    阅读次数:97
[LeetCode, not perfect] 992. Subarrays with K Different Integers
K个不同整数的子数组。题意是给定一个正整数数组 A,如果 A 的某个子数组中不同整数的个数恰好为 K,则称 A 的这个连续、不一定独立的子数组为好子数组。返回A中好子数组的数量。例子, Example 1: Input: A = [1,2,1,2,3], K = 2 Output: 7 Explan ...
分类:其他好文   时间:2020-04-04 09:53:38    阅读次数:53
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