CoolMind

If you cannot measure it, you cannot improve it.

Generate random numbers in C++

Some times we need a random number for sort or as the input of our program. Previously we can use rand() to generate. Since c++ 11, we have a new w...

Posted by chunyang on November 6, 2019

setup.py in Python

When we create a python package, we will distribute it. There are a couple of ways to achieve this purpose: by source code by whl by upload...

Posted by chunyang on November 5, 2019

operator module in Python

Introduction Common operator Relation Bit operations Elements and attributes Other Examples Introduction Python’s operator module...

Posted by chunyang on November 2, 2019

std::ofstream in cpp

Introduction A simple example Common interfaces Open & close Write data Position Control output formats ...

Posted by chunyang on November 1, 2019

std::ifstream in cpp

Introduction A simple example Common interfaces Open & close Status related Read data Position related ...

Posted by chunyang on October 30, 2019

Python File related IO

Introduction open io module io.StringIO/io.BytesIO io.open An interesting example Summary Reference Introduc...

Posted by chunyang on October 28, 2019

functools in Python

Introduction wraps cmp_to_key partial total_ordering reduce Introduction functools like itertool is very useful, but we pay little ...

Posted by chunyang on October 17, 2019

abc module in Python

Introduction abc Module collections.abc Module Animal example AwesomeSequence Recommended reading: Introduction abc is short for Ab...

Posted by chunyang on October 16, 2019