CodeBenAlgo: Bitwise Operation — JavaBit operation is much more efficiently than built-in math-operation in programming (+,-, *, /). The reason is that usually bit operation…2 min read·Nov 12, 2021----
CodeBenAlgo: Binary-Search — JavaBinary search(BS) is an algorithm which used for target searching question, usually people thought that solution space monotonicity is the…2 min read·Nov 10, 2021----
CodeBenData Manipulation Note — Dummy MatrixDummy matrix is an very important feature input for training machine learning model. In real world data, there are many categorical…2 min read·Nov 5, 2020----
CodeBenRunning MATLAB in PythonMATLAB and Python are two of most popular languages, I think a lot of people have such requirement that sometime you want to load a very…3 min read·Nov 12, 2019----
CodeBenIntroduction to apply/map/applymap in pandasPandas is one of most popular toolbox for people to process, analyze data. All data scientists had some experiences to handle data frame…3 min read·Aug 20, 2019----
CodeBenDaily Leetcode Review in Python-#438 Find All Anagrams in a StringSliding Window2 min read·Dec 5, 2018----
CodeBenDaily Leetcode Review in Python-#709 To Lower CaseGreeting, today’s question is to implement a str.lower() without the built-in function. This is a very simple question, we just traversal…1 min read·Dec 5, 2018----
CodeBenDaily Leetcode Review — Q#482 License Key FormattingA classical string reformat question, a simple idea is traversal whole string and reformat. Since that only length of the first part can…1 min read·Nov 6, 2018----
CodeBenDaily Leetcode Review — Q#70 Climbing StairsHi, everyone welcome to my daily Leetcode review. In order to prepare for job interview, i’ll finish five questions (begin with easy…2 min read·Nov 6, 2018----