CoolMind

If you cannot measure it, you cannot improve it.

How to fill a container?

Most of the time we initialize an empty instance of STL containers and keep adding elements to or removing elements from it. For example, we create...

Posted by chunyang on May 10, 2020

How to Design a Scalable Rate Limiting Algorithm

任何一个服务在有限资源前提下都会存在处理能力的上限。本文主要描述限流的一些主要算法。 流控算法 Leaky Bucket (漏桶) Fixed Window (固定窗口) Sliding log (滑动日志) Sliding wi...

Posted by chunyang on May 8, 2020

Revisit compare in map and set

map and set are two common associative containers. By default, common data types can be directly used as the key and their comparing method is std:...

Posted by chunyang on May 7, 2020

Python closure

Python closure usually makes code simpified and are used in functional programming style. It starts with a keyword lambda and the last statement is...

Posted by chunyang on May 5, 2020

Python contextlib

There are some resources we need to release when we finish our job. It is easy for us to forget those operations. Python has a keyword with which c...

Posted by chunyang on March 11, 2020

Move subdirectory of a git repository and keep commit message

How to extract a subdirectory of a git repository and keep its commit message? If we directly move everything and add them again, we will lose all ...

Posted by chunyang on March 8, 2020

Common functions implemented using STL

Introduction Count lines String trim Convert case Split and Join strings Filter Map Reduce Introduction STL provides a lot of u...

Posted by chunyang on February 8, 2020

SuperTAB and YouCompleteMe compatibility

SuperTAB YouCompleteMe Problems SuperTAB SuperTAB Github YouCompleteMe YouCompleteMe Github Problems StackExchange SuperTAB and ...

Posted by chunyang on December 26, 2019