CoolMind

If you cannot measure it, you cannot improve it.

String in cpp

Introduction Convert to and from numbers Convert a number into a string Convert a number from a string Construct a s...

Posted by chunyang on October 13, 2019

Notes about making Github pages beautiful

Introduction Auto TOC Highlight Anchor Comment Introduction More and more people are using Github pages as their personal website. Git...

Posted by chunyang on October 11, 2019

Python descriptor

Property Descriptor Recently in my project, I need to dynamically add property to an instance. It is easy that any class can support it. c...

Posted by chunyang on September 30, 2019

Leetcode summary of 20190922-20190929

Summary Highlight Code Section Summary Solved problems list Remove All Adjacent Duplicates in String II Most Stones Removed with ...

Posted by chunyang on September 29, 2019

Dijkstra's 3-way quick sort

Quick-sort is one of the greatest inventions. Most of the time, its time complexity is O(nlogn). However, when the input array contains lots of dup...

Posted by chunyang on September 24, 2019

Leetcode summary of 20190915-20190922

Summary Highlight Code Section Summary Solved problems list Check If Word Is Valid After Substitutions Redundant Connection Arr...

Posted by chunyang on September 22, 2019

C++ Iterator

Introduction Common Iterator Wrapper Inserters IO related Common functions Introduction Iterator is an essenti...

Posted by chunyang on September 22, 2019

Leetcode summary of 20190908-20190915

Summary Highlight Summary Solved problems list Kth Smallest Element in a Sorted Matrix All Nodes Distance K in Binary Tree Total ...

Posted by chunyang on September 15, 2019