Scenario You are on a machine that does not have tr . You want to use tr...

Question You starts a remote terminal in a linux machine that has networ...

Imperative Way (Optimized) Functional Way (Not Optimized Yet) Functional...

Background knowledge The formula relation of Kth big and its element pos...

ˋˋˋ function partition(nums, left, right) { const pivot = const pivotPo...

It really reminds my course "automata" in the university. https://pegjs....

Coding exercise like leetcode, lintcode, hacker rank are just gym rooms ...

Many days ago I showed how to use dynamic programming to solve the stone...

JS is incredibly flexible. This is a quick recipe for OOP people. The ol...