数据库hard

kingshard 是一个由 Go 开发高性能 MySQL Proxy 项目,kingshard 在满足基本的读写分离的功能上,致力于简化 MySQL 分库分表操作;能够让 DBA 通过 kingshard 轻松平滑地实现 MySQL 数据库扩容。 kingshard 的性能是直连 MySQL 性能的 80% 以上。 主要功能: 1. 基础功能 支持SQL读写分离。 支持透明的MySQL连接池,不必每次新建连接。 支持平滑上线DB或下线DB,前端应用无感知。 支持多个slave,slave之间通过权值进行负载均衡...

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[博客] hdu1097 A hard puzzle

https://my.oschina.net/u/1017188/blog/333530

A hard puzzleTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 27417 Accepted Submission(s): 9761 Problem Description lcy giv...

2014/10/17 00:00

[博客] AT1983 BBQ Hard

https://my.oschina.net/u/4267186/blog/3620540

洛谷题目链接:BBQ Hard 题意翻译 有 n 个数对 $(Ai; Bi)$,求出 $$sum{i=1}^{n}sum{j=i + 1}^{n}{ai+bi+aj+bj choose ai+aj}$$ 答案对1e9+7取模 $2≦N≦200,000$ $1≦Ai≦2000, 1≦Bi≦2000$...

2019/03/10 00:00

[博客] hdu1097 A hard puzzle

https://my.oschina.net/u/1017188/blog/333529

A hard puzzleTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 27417 Accepted Submission(s): 9761 Problem Description lcy giv...

2014/10/17 00:00

[博客] Git reset --hard?????不慌

https://my.oschina.net/u/4009210/blog/3124935

该博客属于私人博客,由于作者设置了权限,您没法阅读此文,请与作者联系。

2019/11/01 00:00

[博客] Many people are working hard to achieve

https://my.oschina.net/u/4568560/blog/4529533

Many people are working hard to achieve "freedom of wealth", but now people find that making money is getting harder and harder. Not only one person says this, many people feel ...

08/25 00:00

[博客] Codeforces 958C3 - Encryption (hard)

https://my.oschina.net/u/4324881/blog/4005922

C3 - Encryption (hard) 思路: 记sum[i]表示0 - i 的和对 p 取模的值。 1.如果k p > n,那么与C2的做法一致,O(kp*n)复杂度低于1e8。 2.如果k * p <= n 那么根据抽屉原理,必有k个sum[i]相同...

2018/04/17 00:00

[问答] 4Clojure hard题目-89

https://www.oschina.net/question/116260_78229

4Clojure是一个面向clojure初学者的在线答题网站,问题从易到难,一步步辅助初学者深入了解clojure Graph Tour Difficulty: Hard Topics: graph-theory Starting with a graph you must wri...

2012/11/08 00:00

[问答] 4Clojure hard题目-92

https://www.oschina.net/question/116260_78986

4Clojure是一个面向clojure初学者的在线答题网站,问题从易到难,一步步辅助初学者深入了解clojure Read Roman numerals Difficulty: Hard Topics: strings math Roman numerals are easy t...

2012/11/12 00:00

[问答] 4Clojure hard题目-84

https://www.oschina.net/question/116260_78078

4Clojure是一个面向clojure初学者的在线答题网站,问题从易到难,一步步辅助初学者深入了解clojure Transitive Closure Difficulty: Hard Topics: set-theory Write a function which gener...

2012/11/07 00:00

[问答] 4Clojure hard题目-101

https://www.oschina.net/question/116260_79948

4Clojure是一个面向clojure初学者的在线答题网站,问题从易到难,一步步辅助初学者深入了解clojure Levenshtein Distance Difficulty: Hard Topics: seqs Given two sequences x and y, cal...

2012/11/19 00:00

[问答] 4Clojure hard题目-82

https://www.oschina.net/question/116260_77929

4Clojure是一个面向clojure初学者的在线答题网站,问题从易到难,一步步辅助初学者深入了解clojure Word Chains Difficulty: Hard Topics: seqs A word chain consists of a set of words o...

2012/11/06 00:00

[问答] 4Clojure hard题目-111

https://www.oschina.net/question/116260_80639

4Clojure是一个面向clojure初学者的在线答题网站,问题从易到难,一步步辅助初学者深入了解clojure Crossword puzzle Difficulty: Hard Topics: game Write a function that takes a string...

2012/11/23 00:00

[博客] soft-float/hard-float

https://my.oschina.net/u/122481/blog/140135

1)kernel & kernel module check out: $cat out/target/product/ceres/obj/KERNEL/.config |grep FP CONFIGVFP=y CONFIGVFPv3=y 2) toolchain stuff(gcc) check out: #ARM doc for Hard FP h...

2013/06/24 00:00

[问答] 4Clojure hard题目-113

https://www.oschina.net/question/116260_81639

4Clojure是一个面向clojure初学者的在线答题网站,问题从易到难,一步步辅助初学者深入了解clojure Making Data Dance Difficulty: Hard Topics: types Write a function that takes a vari...

2012/11/30 00:00

[问答] 4Clojure hard题目-79

https://www.oschina.net/question/116260_77686

4Clojure是一个面向clojure初学者的在线答题网站,问题从易到难,一步步辅助初学者深入了解clojure Triangle Minimal Path Difficulty: Hard Topics: graph-theory Write a function which ...

2012/11/05 00:00

[问答] 4Clojure hard题目-53

https://www.oschina.net/question/116260_77641

4Clojure是一个面向clojure初学者的在线答题网站,问题从易到难,一步步辅助初学者深入了解clojure Longest Increasing Sub-Seq Difficulty: Hard Topics: seqs Given a vector of integers...

2012/11/05 00:00

[博客] 【BZOJ4589】Hard Nim(FWT)

https://my.oschina.net/u/4337933/blog/3966492

#【BZOJ4589】Hard Nim(FWT) 题面 BZOJ Description Claris和NanoApe在玩石子游戏,他们有n堆石子,规则如下: Claris和NanoApe两个人轮流拿石子,Claris先拿。 每次只能从一堆中取若干个,...

2018/05/21 00:00

[问答] 4Clojure hard题目-117

https://www.oschina.net/question/116260_82236

4Clojure是一个面向clojure初学者的在线答题网站,问题从易到难,一步步辅助初学者深入了解clojure For Science! Difficulty: Hard Topics: game A mad scientist with tenure has created ...

2012/12/05 00:00

[博客] Tasteless challenges hard WP

https://my.oschina.net/u/4363760/blog/3594612

hard Level 5- Fred CMS 十有八九是注入,不过测试引号和转义符并没发现什么,于是跑了下密码字典,竟然发现网页提示 sql injection detected! ,然后发现原来是密码中存在or关键字 测试了u...

2019/03/28 00:00

[博客] Hard links and Soft links

https://my.oschina.net/u/264328/blog/59442

Hard links and Soft links http://www.ugrad.cs.ubc.ca/~cs219/CourseNotes/Unix/commands-links.html Links As was mentioned in the section on file system structure, every file has a...

2012/05/24 00:00
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